diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt index 4d997c4..4a48899 100644 --- a/main/CMakeLists.txt +++ b/main/CMakeLists.txt @@ -8,6 +8,8 @@ idf_component_register(SRCS voc_sensor.c co2_sensor.c data_report.c + modbus_crc.c + modbus_fn.c periph_init.c i2c_utils.c console/console_ioimpl.c diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild index 5c7779d..a961d52 100644 --- a/main/Kconfig.projbuild +++ b/main/Kconfig.projbuild @@ -16,6 +16,18 @@ menu "App Configuration" config PIN_I2C_SCL1 int "I2C0 SCL" default 18 + + config PIN_CO2_NRDY + int "CO2 NRDY" + default 23 + + config PIN_CO2_COMSEL + int "CO2 COMSEL" + default 13 + + config PIN_CO2_EN + int "CO2 EN" + default 15 endmenu menu "Console" diff --git a/main/app_main.c b/main/app_main.c index df36aef..756ebc5 100644 --- a/main/app_main.c +++ b/main/app_main.c @@ -59,9 +59,8 @@ void app_main(void) { vTaskDelay(pdMS_TO_TICKS(1000)); - xTaskCreatePinnedToCore(voc_read_task, "VOC", 4096, NULL, PRIO_NORMAL, NULL, 1); - xTaskCreatePinnedToCore(co2_read_task, "CO2", 4096, NULL, PRIO_NORMAL, NULL, 1); - // xTaskCreate(co2_read_task, "CO2", 4096, NULL, PRIO_NORMAL, NULL); + xTaskCreate(voc_read_task, "VOC", 4096, NULL, PRIO_NORMAL, NULL); + xTaskCreate(co2_read_task, "CO2", 4096, NULL, PRIO_NORMAL, NULL); console_init(NULL); register_console_commands(); diff --git a/main/co2_sensor.c b/main/co2_sensor.c index 3165cde..ed47a15 100644 --- a/main/co2_sensor.c +++ b/main/co2_sensor.c @@ -1,4 +1,4 @@ -#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG +//#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG #include "co2_sensor.h" @@ -7,158 +7,210 @@ #include #include #include -#include -#include -#include "voc_sensor.h" -#include "i2c_utils.h" #include "periph_init.h" #include "data_report.h" +#include "modbus_fn.h" +#include "settings.h" +#include +#include +#include +#include static const char *TAG = "co2"; #define CO2_ADDR 104 -#define CO2_I2C_NUM I2C_NUM_1 +#define CO2_UART_NUM 1 #define TIMEOUT_MS 500 -// this works, but the bus is fucked up -bool wake_up() { - esp_err_t suc; -#define TRY(x) suc=x; if(suc!=ESP_OK) return suc; - for (int i = 0; i < 5; i++) { - ESP_LOGD(TAG, "Wake up try %d", i); - uint8_t dummy; - - i2c_cmd_handle_t chain; - - chain = i2c_cmd_link_create(); - TRY(i2c_master_start(chain)); - TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_WRITE, false)); - TRY(i2c_master_write_byte(chain, 0x30, false)); - TRY(i2c_master_start(chain)); - TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_READ, false)); // TODO expect ack? - TRY(i2c_master_read(chain, &dummy, 1, I2C_MASTER_LAST_NACK)); - TRY(i2c_master_stop(chain)); - i2c_master_cmd_begin(CO2_I2C_NUM, chain, pdMS_TO_TICKS(70)); - i2c_cmd_link_delete(chain); - - chain = i2c_cmd_link_create(); - TRY(i2c_master_start(chain)); - TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_WRITE, false)); - TRY(i2c_master_write_byte(chain, 0x30, false)); - TRY(i2c_master_start(chain)); - TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_READ, true)); // TODO expect ack? - TRY(i2c_master_read(chain, &dummy, 1, I2C_MASTER_LAST_NACK)); - TRY(i2c_master_stop(chain)); - suc = i2c_master_cmd_begin(CO2_I2C_NUM, chain, pdMS_TO_TICKS(80)); - i2c_cmd_link_delete(chain); - - if (suc == ESP_OK) { - ESP_LOGD(TAG, "Woken up at try %d", i); - return true; - } +static int mb_write_and_read(uint8_t *buffer, int num, size_t resplen) { + if (num < 0) { + ESP_LOGE(TAG, "MB build failed"); + return 0; } - ESP_LOGE(TAG, "Fail to wake up"); - return false; -#undef TRY -} + ESP_LOGD(TAG, "Sending"); + ESP_LOG_BUFFER_HEXDUMP(TAG, buffer, num, ESP_LOG_DEBUG); + uart_write_bytes(CO2_UART_NUM, buffer, num); -static esp_err_t do_reg_read(uint8_t reg_addr, uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { - i2c_cmd_handle_t cmd = i2c_cmd_link_create(); - i2c_reg_read(cmd, CO2_ADDR, reg_addr, reg_data, length); - esp_err_t ret = i2c_master_cmd_begin(CO2_I2C_NUM, cmd, pdMS_TO_TICKS(TIMEOUT_MS)); - i2c_cmd_link_delete(cmd); - if (ret != ESP_OK) { - ESP_LOGE(TAG, "I2C read error: %s, devaddr %x, reg %d, len %d", esp_err_to_name(ret), CO2_ADDR, reg_addr, length); - } - ESP_LOG_BUFFER_HEXDUMP(TAG, reg_data, length, ESP_LOG_DEBUG); - return ret; + ESP_LOGD(TAG, "Expect resp of %d bytes", resplen); + num = uart_read_bytes(CO2_UART_NUM, buffer, resplen, pdMS_TO_TICKS(500)); + ESP_LOGD(TAG, "Received %d bytes", num); + ESP_LOG_BUFFER_HEXDUMP(TAG, buffer, num, ESP_LOG_DEBUG); + return num; } -static esp_err_t reg_read(uint8_t reg_addr, uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { -// BaseType_t suc = xSemaphoreTake(g_mux_i2c, pdMS_TO_TICKS(SEMA_TIMEOUT_MS)); -// if (suc != pdPASS) { -// ESP_LOGE(TAG, "Sema fail"); -// return ESP_ERR_TIMEOUT; -// } - if (!wake_up()) { -// xSemaphoreGive(g_mux_i2c); - return ESP_ERR_TIMEOUT; +static void write_saved_calib_to_sensor() { + static uint8_t buffer[40]; + size_t resplen; + int num; + int resp; + + if (g_Settings.co2_calib[0] > 0) { + ESP_LOGI(TAG, "Writing saved calib to sensor"); + + /* Write calib */ + resplen = 0; + num = mb_build_fc16(buffer, 128, &resplen, 104, 4, g_Settings.co2_calib, 5); + num = mb_write_and_read(buffer, num, resplen); + resp = mb_parse_fc16(buffer, num); + if (resp < 0) { + ESP_LOGE(TAG, "Fail to write calib constants!"); + } + } else { + ESP_LOGW(TAG, "No saved calib to write to sensor!"); } - esp_err_t rv = do_reg_read(reg_addr, reg_data, length, timeout_ms); -// xSemaphoreGive(g_mux_i2c); -// ets_delay_us(12000); - return rv; } -static esp_err_t do_reg_write(uint8_t reg_addr, const uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { - i2c_cmd_handle_t cmd = i2c_cmd_link_create(); - i2c_reg_write(cmd, CO2_ADDR, reg_addr, reg_data, length); - esp_err_t ret = i2c_master_cmd_begin(CO2_I2C_NUM, cmd, pdMS_TO_TICKS(timeout_ms)); - i2c_cmd_link_delete(cmd); - if (ret != ESP_OK) { - ESP_LOGE(TAG, "I2C write error: %s, devaddr %x, reg %d, len %d", esp_err_to_name(ret), CO2_ADDR, reg_addr, length); +void co2_restart(bool restore_calib) { + ESP_LOGI(TAG, "Restarting CO2 sensor"); + + gpio_set_level(CONFIG_PIN_CO2_EN, 0); + vTaskDelay(pdMS_TO_TICKS(100)); + gpio_set_level(CONFIG_PIN_CO2_EN, 1); + vTaskDelay(pdMS_TO_TICKS(50)); + + if (restore_calib) { + write_saved_calib_to_sensor(); } - return ret; } -static esp_err_t reg_write(uint8_t reg_addr, const uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { -// BaseType_t suc = xSemaphoreTake(g_mux_i2c, pdMS_TO_TICKS(SEMA_TIMEOUT_MS)); -// if (suc != pdPASS) { -// ESP_LOGE(TAG, "Sema fail"); -// return ESP_ERR_TIMEOUT; -// } - if (!wake_up()) { -// xSemaphoreGive(g_mux_i2c); - return ESP_ERR_TIMEOUT; - } - esp_err_t rv = do_reg_write(reg_addr, reg_data, length, timeout_ms); -// xSemaphoreGive(g_mux_i2c); -// ets_delay_us(12000); - return rv; +static bool ppm_looks_valid(uint16_t ppm) { + return ppm > 400 && ppm < 5000; } void co2_read_task(void *param) { - // i2c is protected by a semaphore inside the driver, no need to worry about it here - - // continuous is the default + (void) param; vTaskDelay(pdMS_TO_TICKS(500)); - uint8_t pld[] = {0x00, 0x05, 0x00, 0x05}; - if (ESP_OK == reg_write(0x96, pld, 4, TIMEOUT_MS)) { - ESP_LOGI(TAG, "CO2 init OK"); - } + // TODO - bool init_suc = false; - vTaskDelay(pdMS_TO_TICKS(250)); + static uint8_t buffer[128]; + static uint16_t values[32]; + int qty; + size_t resplen; + int num; + + write_saved_calib_to_sensor(); + + const uint32_t read_cycle_time_ticks = 10 * 1000; + const uint32_t calib_persist_time_ticks = 12 * 3600 * 1000; + _Static_assert(configTICK_RATE_HZ == 1000, "1kHz tick"); + + uint32_t last_calib_persist = xTaskGetTickCount(); + + ESP_LOGD(TAG, "Calib persist time = %d ticks", calib_persist_time_ticks); + + int num_fails = 0; + uint16_t ppm = 0; while (1) { + ppm = 0; + vTaskDelay(read_cycle_time_ticks); + + if (num_fails > 10) { + ESP_LOGW(TAG, "Too many CO2 fails, restarting sensor"); + co2_restart(true); + num_fails = 0; + } + + resplen = 0; + num = mb_build_fc4(buffer, 128, &resplen, 104, 0, 5); + num = mb_write_and_read(buffer, num, resplen); + qty = mb_parse_fc4(buffer, num, values, 32); + if (qty < 0) { + num_fails++; + goto next; + } - vTaskDelay(pdMS_TO_TICKS(2000)); + // Read was OK, reset the fail counter + num_fails = 0; - uint8_t data[4] = {}; + uint16_t status = values[0]; + bool co2_needs_restart = false; + bool calibration_error = false; + if (status != 0) { + if (status & 0x01) { + ESP_LOGE(TAG, "CO2 fatal error"); + co2_needs_restart = true; + } + if (status & 0x02) { + ESP_LOGE(TAG, "CO2 I2C communication error"); + } + if (status & 0x04) { + ESP_LOGE(TAG, "CO2 internal I2C operation error"); + } + if (status & 0x08) { + ESP_LOGE(TAG, "CO2 calibration error"); + calibration_error = true; + } + if (status & 0x10) { + ESP_LOGE(TAG, "CO2 self-diagnostics error"); + co2_needs_restart = true; + } + if (status & 0x20) { + ESP_LOGE(TAG, "CO2 out of range error"); + // nonsense, this means calibration failed + calibration_error = true; + } + if (status & 0x40) { + ESP_LOGE(TAG, "CO2 memory error"); + co2_needs_restart = true; + } + if (status & 0x80) { + ESP_LOGE(TAG, "CO2 external I2C error"); + } + + if (co2_needs_restart) { + co2_restart(!calibration_error); + if (calibration_error) { + // Prevent persisting values too soon, give it some time to calibrate + last_calib_persist = xTaskGetTickCount(); + } + } + goto next; + } + + ppm = values[3]; + ESP_LOGI(TAG, "CO2 ppm %d", ppm); + + if (!ppm_looks_valid(ppm)) { + ESP_LOGW(TAG, "CO2 measures nonsense!"); + co2_restart(true); + } else { + // CO2 measurement looks OK - for (int retry = 0; retry < 3; retry++) { - if (ESP_OK == reg_read(0x06, data, 4, TIMEOUT_MS)) { - uint16_t filtered = (data[0] << 8) | data[1]; - uint16_t unfiltered = (data[2] << 8) | data[3]; + uint32_t tickNow = xTaskGetTickCount(); + uint32_t elapsed = tickNow - last_calib_persist; + if (elapsed > calib_persist_time_ticks) { + ESP_LOGI(TAG, "Read & persist CO2 calibration"); - ESP_LOGI(TAG, "CO2 ppm %d, raw %d", filtered, unfiltered); + last_calib_persist = tickNow; - if (pdPASS == xSemaphoreTake(g_mux_data_report, pdMS_TO_TICKS(750))) { - if (filtered > 400 && filtered < 5000) { - g_data_report.co2_ppm = (float) filtered; - g_data_report.co2_ready = true; - g_data_report.co2_timestamp = xTaskGetTickCount(); - } else { - g_data_report.co2_ready = false; - } + resplen = 0; + num = mb_build_fc3(buffer, 128, &resplen, 104, 4, 5); + num = mb_write_and_read(buffer, num, resplen); + qty = mb_parse_fc3(buffer, num, values, 32); + if (qty < 0) { + num_fails++; + } + + if (qty == 5) { + memcpy(g_Settings.co2_calib, values, 5 * 2); + settings_persist(SETTINGS_co2_calib); } - xSemaphoreGive(g_mux_data_report); - break; } + } - vTaskDelay(pdMS_TO_TICKS(50)); + next: + if (pdPASS == xSemaphoreTake(g_mux_data_report, pdMS_TO_TICKS(750))) { + if (ppm_looks_valid(ppm)) { + g_data_report.co2_ppm = (float) ppm; + g_data_report.co2_ready = true; + g_data_report.co2_timestamp = xTaskGetTickCount(); + } else { + g_data_report.co2_ready = false; + } } + xSemaphoreGive(g_mux_data_report); } } diff --git a/main/co2_sensor_i2c.c b/main/co2_sensor_i2c.c new file mode 100644 index 0000000..3165cde --- /dev/null +++ b/main/co2_sensor_i2c.c @@ -0,0 +1,164 @@ +#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG + +#include "co2_sensor.h" + +#include +#include +#include +#include +#include +#include +#include +#include "voc_sensor.h" +#include "i2c_utils.h" +#include "periph_init.h" +#include "data_report.h" + +static const char *TAG = "co2"; + +#define CO2_ADDR 104 +#define CO2_I2C_NUM I2C_NUM_1 +#define TIMEOUT_MS 500 + +// this works, but the bus is fucked up +bool wake_up() { + esp_err_t suc; +#define TRY(x) suc=x; if(suc!=ESP_OK) return suc; + for (int i = 0; i < 5; i++) { + ESP_LOGD(TAG, "Wake up try %d", i); + uint8_t dummy; + + i2c_cmd_handle_t chain; + + chain = i2c_cmd_link_create(); + TRY(i2c_master_start(chain)); + TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_WRITE, false)); + TRY(i2c_master_write_byte(chain, 0x30, false)); + TRY(i2c_master_start(chain)); + TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_READ, false)); // TODO expect ack? + TRY(i2c_master_read(chain, &dummy, 1, I2C_MASTER_LAST_NACK)); + TRY(i2c_master_stop(chain)); + i2c_master_cmd_begin(CO2_I2C_NUM, chain, pdMS_TO_TICKS(70)); + i2c_cmd_link_delete(chain); + + chain = i2c_cmd_link_create(); + TRY(i2c_master_start(chain)); + TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_WRITE, false)); + TRY(i2c_master_write_byte(chain, 0x30, false)); + TRY(i2c_master_start(chain)); + TRY(i2c_master_write_byte(chain, (CO2_ADDR << 1) | I2C_MASTER_READ, true)); // TODO expect ack? + TRY(i2c_master_read(chain, &dummy, 1, I2C_MASTER_LAST_NACK)); + TRY(i2c_master_stop(chain)); + suc = i2c_master_cmd_begin(CO2_I2C_NUM, chain, pdMS_TO_TICKS(80)); + i2c_cmd_link_delete(chain); + + if (suc == ESP_OK) { + ESP_LOGD(TAG, "Woken up at try %d", i); + return true; + } + } + ESP_LOGE(TAG, "Fail to wake up"); + return false; +#undef TRY +} + + +static esp_err_t do_reg_read(uint8_t reg_addr, uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { + i2c_cmd_handle_t cmd = i2c_cmd_link_create(); + i2c_reg_read(cmd, CO2_ADDR, reg_addr, reg_data, length); + esp_err_t ret = i2c_master_cmd_begin(CO2_I2C_NUM, cmd, pdMS_TO_TICKS(TIMEOUT_MS)); + i2c_cmd_link_delete(cmd); + if (ret != ESP_OK) { + ESP_LOGE(TAG, "I2C read error: %s, devaddr %x, reg %d, len %d", esp_err_to_name(ret), CO2_ADDR, reg_addr, length); + } + ESP_LOG_BUFFER_HEXDUMP(TAG, reg_data, length, ESP_LOG_DEBUG); + return ret; +} + +static esp_err_t reg_read(uint8_t reg_addr, uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { +// BaseType_t suc = xSemaphoreTake(g_mux_i2c, pdMS_TO_TICKS(SEMA_TIMEOUT_MS)); +// if (suc != pdPASS) { +// ESP_LOGE(TAG, "Sema fail"); +// return ESP_ERR_TIMEOUT; +// } + if (!wake_up()) { +// xSemaphoreGive(g_mux_i2c); + return ESP_ERR_TIMEOUT; + } + esp_err_t rv = do_reg_read(reg_addr, reg_data, length, timeout_ms); +// xSemaphoreGive(g_mux_i2c); +// ets_delay_us(12000); + return rv; +} + +static esp_err_t do_reg_write(uint8_t reg_addr, const uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { + i2c_cmd_handle_t cmd = i2c_cmd_link_create(); + i2c_reg_write(cmd, CO2_ADDR, reg_addr, reg_data, length); + esp_err_t ret = i2c_master_cmd_begin(CO2_I2C_NUM, cmd, pdMS_TO_TICKS(timeout_ms)); + i2c_cmd_link_delete(cmd); + if (ret != ESP_OK) { + ESP_LOGE(TAG, "I2C write error: %s, devaddr %x, reg %d, len %d", esp_err_to_name(ret), CO2_ADDR, reg_addr, length); + } + return ret; +} + +static esp_err_t reg_write(uint8_t reg_addr, const uint8_t *reg_data, uint32_t length, uint32_t timeout_ms) { +// BaseType_t suc = xSemaphoreTake(g_mux_i2c, pdMS_TO_TICKS(SEMA_TIMEOUT_MS)); +// if (suc != pdPASS) { +// ESP_LOGE(TAG, "Sema fail"); +// return ESP_ERR_TIMEOUT; +// } + if (!wake_up()) { +// xSemaphoreGive(g_mux_i2c); + return ESP_ERR_TIMEOUT; + } + esp_err_t rv = do_reg_write(reg_addr, reg_data, length, timeout_ms); +// xSemaphoreGive(g_mux_i2c); +// ets_delay_us(12000); + return rv; +} + +void co2_read_task(void *param) { + // i2c is protected by a semaphore inside the driver, no need to worry about it here + + // continuous is the default + + vTaskDelay(pdMS_TO_TICKS(500)); + + uint8_t pld[] = {0x00, 0x05, 0x00, 0x05}; + if (ESP_OK == reg_write(0x96, pld, 4, TIMEOUT_MS)) { + ESP_LOGI(TAG, "CO2 init OK"); + } + + bool init_suc = false; + vTaskDelay(pdMS_TO_TICKS(250)); + while (1) { + + vTaskDelay(pdMS_TO_TICKS(2000)); + + uint8_t data[4] = {}; + + for (int retry = 0; retry < 3; retry++) { + if (ESP_OK == reg_read(0x06, data, 4, TIMEOUT_MS)) { + uint16_t filtered = (data[0] << 8) | data[1]; + uint16_t unfiltered = (data[2] << 8) | data[3]; + + ESP_LOGI(TAG, "CO2 ppm %d, raw %d", filtered, unfiltered); + + if (pdPASS == xSemaphoreTake(g_mux_data_report, pdMS_TO_TICKS(750))) { + if (filtered > 400 && filtered < 5000) { + g_data_report.co2_ppm = (float) filtered; + g_data_report.co2_ready = true; + g_data_report.co2_timestamp = xTaskGetTickCount(); + } else { + g_data_report.co2_ready = false; + } + } + xSemaphoreGive(g_mux_data_report); + break; + } + + vTaskDelay(pdMS_TO_TICKS(50)); + } + } +} diff --git a/main/data_report.h b/main/data_report.h index 90dbba0..21ff081 100644 --- a/main/data_report.h +++ b/main/data_report.h @@ -15,14 +15,14 @@ struct data_report { bool iaq_ready; - uint32_t iaq_timestamp; + uint32_t iaq_timestamp; // timestamp in ticks float iaq; float iaq_static; float iaq_co2_ppm_equiv; float iaq_voc_ppm_equiv; bool thpg_ready; - uint32_t thpg_timestamp; + uint32_t thpg_timestamp; // timestamp in ticks float temperature; float temperature_raw; float pressure; @@ -31,7 +31,7 @@ struct data_report { float gas_raw; bool co2_ready; - uint32_t co2_timestamp; + uint32_t co2_timestamp; // timestamp in ticks float co2_ppm; }; diff --git a/main/modbus_crc.c b/main/modbus_crc.c new file mode 100644 index 0000000..92c16dc --- /dev/null +++ b/main/modbus_crc.c @@ -0,0 +1,98 @@ +/* + * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU. + * Copyright (c) 2006 Christian Walter + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * File: $Id: mbcrc.c,v 1.7 2007/02/18 23:50:27 wolti Exp $ + */ + +/* ----------------------- Platform includes --------------------------------*/ +#include "modbus_crc.h" +#include + +static const uint8_t aucCRCHi[] = { + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, + 0x00, 0xC1, 0x81, 0x40 +}; + +static const uint8_t aucCRCLo[] = { + 0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, + 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, + 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, + 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, + 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3, + 0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, + 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, + 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, + 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, + 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26, + 0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, + 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, + 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, + 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, + 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5, + 0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, + 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, + 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, + 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, + 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C, + 0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, + 0x41, 0x81, 0x80, 0x40 +}; + +uint16_t modbus_crc(const uint8_t *pucFrame, uint16_t usLen) +{ + uint8_t ucCRCHi = 0xFF; + uint8_t ucCRCLo = 0xFF; + int iIndex; + + while (usLen--) { + iIndex = ucCRCLo ^ *(pucFrame++); + ucCRCLo = (uint8_t) (ucCRCHi ^ aucCRCHi[iIndex]); + ucCRCHi = aucCRCLo[iIndex]; + } +// return (uint16_t) (ucCRCHi << 8 | ucCRCLo); + return (uint16_t) (ucCRCLo << 8 | ucCRCHi); +} diff --git a/main/modbus_crc.h b/main/modbus_crc.h new file mode 100644 index 0000000..23d6fcb --- /dev/null +++ b/main/modbus_crc.h @@ -0,0 +1,37 @@ +/* + * FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU. + * Copyright (c) 2006 Christian Walter + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * File: $Id: mbcrc.h,v 1.5 2006/12/07 22:10:34 wolti Exp $ + */ + +#ifndef _MODBUS_CRC_H +#define _MODBUS_CRC_H +#include + +uint16_t modbus_crc(const uint8_t *pucFrame, uint16_t usLen); + +#endif diff --git a/main/modbus_fn.c b/main/modbus_fn.c new file mode 100644 index 0000000..a944e29 --- /dev/null +++ b/main/modbus_fn.c @@ -0,0 +1,167 @@ +#include +#include "modbus_fn.h" +#include "modbus_crc.h" +#include + +static const char *TAG = "mb"; + +static bool crc_matches(const uint8_t *buf, size_t len) { + assert(buf); + uint16_t real = modbus_crc(buf, len - 2); + uint16_t given = ((uint16_t) buf[len - 2] << 8) | (uint16_t) buf[len - 1]; + return real == given; +} + +// Read holding registers +int mb_build_fc3(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, uint16_t qty) { + assert(buf); + assert(resplen); + if (len < 8) { + ESP_LOGE(TAG, "Buf len too short for FC3"); + return -1; + } + if (qty > 127) { + ESP_LOGE(TAG, "FC3 qty too high"); + return -1; + } + + size_t wp = 0; + buf[wp++] = mbAddr; + buf[wp++] = 0x03; + buf[wp++] = (ref & 0xFF00) >> 8; + buf[wp++] = (ref & 0xFF); + buf[wp++] = (qty & 0xFF00) >> 8; + buf[wp++] = (qty & 0xFF); + uint16_t crc = modbus_crc(buf, wp); + buf[wp++] = (crc & 0xFF00) >> 8; + buf[wp++] = (crc & 0xFF); + + *resplen = 5 + qty * 2; + return (int) wp; +} + +static int mb_parse_fc3_4(const uint8_t *buf, size_t len, uint16_t *dst, size_t capacity, int fcX) { + assert(buf); + + if (!crc_matches(buf, len)) { + ESP_LOGE(TAG, "FC%d CRC mismatch!", fcX); + return -1; + } + + //11 03 06 AE41 5652 4340 49AD + if (len == 5 && buf[1] == (0x80+fcX)) { + ESP_LOGE(TAG, "FC%d exception: %d", fcX, buf[2]); + return -1; + } + + if (buf[1] != fcX) { + ESP_LOGE(TAG, "FC%d decode fail: not FC%d", fcX, fcX); + return -1; + } + + int num = buf[2] / 2; // this is the number of bytes + if (capacity < num) { + ESP_LOGE(TAG, "FC%d decode fail: dst too small for %d registers", fcX, num); + return -1; + } + + for (int i = 0; i < num; i++) { + *dst++ = (((uint16_t) buf[3 + i * 2]) << 8) | (((uint16_t) buf[3 + i * 2 + 1])); + } + return num; +} + +int mb_parse_fc3(const uint8_t *buf, size_t len, uint16_t *dst, size_t capacity) { + return mb_parse_fc3_4(buf, len, dst, capacity, 3); +} + +//// Read input registers +int mb_build_fc4(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, uint16_t qty) { + assert(buf); + assert(resplen); + if (len < 8) { + ESP_LOGE(TAG, "Buf len too short for FC4"); + return -1; + } + if (qty > 127) { + ESP_LOGE(TAG, "FC3 qty too high"); + return -1; + } + + size_t wp = 0; + buf[wp++] = mbAddr; + buf[wp++] = 0x04; + buf[wp++] = (ref & 0xFF00) >> 8; + buf[wp++] = (ref & 0xFF); + buf[wp++] = (qty & 0xFF00) >> 8; + buf[wp++] = (qty & 0xFF); + uint16_t crc = modbus_crc(buf, wp); + buf[wp++] = (crc & 0xFF00) >> 8; + buf[wp++] = (crc & 0xFF); + + *resplen = 5 + qty * 2; + return (int) wp; +} + +int mb_parse_fc4(const uint8_t *buf, size_t len, uint16_t *dst, size_t capacity) { + return mb_parse_fc3_4(buf, len, dst, capacity, 4); +} + +// Write holding registers +int mb_build_fc16(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, const uint16_t *data, uint16_t qty) { + assert(buf); + assert(data); + assert(resplen); + if (len < 9 + qty * 2) { + ESP_LOGE(TAG, "Buf len too short for FC16, or bad len"); + return -1; + } + if (qty > 127) { + ESP_LOGE(TAG, "FC16 qty too high"); + return -1; + } + + size_t wp = 0; + buf[wp++] = mbAddr; + buf[wp++] = 0x10; + buf[wp++] = (ref & 0xFF00) >> 8; + buf[wp++] = (ref & 0xFF); + buf[wp++] = (qty & 0xFF00) >> 8; + buf[wp++] = (qty & 0xFF); + buf[wp++] = qty * 2; + + for (int i = 0; i < qty; i++) { + buf[wp++] = (data[i] & 0xFF00) >> 8; + buf[wp++] = (data[i] & 0xFF); + } + + uint16_t crc = modbus_crc(buf, wp); + buf[wp++] = (crc & 0xFF00) >> 8; + buf[wp++] = (crc & 0xFF); + *resplen = 8; + return (int) wp; +} + + +bool mb_parse_fc16(const uint8_t *buf, size_t len) +{ + assert(buf); + + if (!crc_matches(buf, len)) { + ESP_LOGE(TAG, "FC16 CRC mismatch!"); + return -1; + } + + //11 10 0001 0002 1298 + if (len == 5 && buf[1] == 0x90) { + ESP_LOGE(TAG, "FC16 exception: %d", buf[2]); + return -1; + } + + if (buf[1] != 16) { + ESP_LOGE(TAG, "FC16 decode fail: not FC16"); + return -1; + } + + return 0; +} diff --git a/main/modbus_fn.h b/main/modbus_fn.h new file mode 100644 index 0000000..8450471 --- /dev/null +++ b/main/modbus_fn.h @@ -0,0 +1,85 @@ +/** + * TODO file description + * + * Created on 2022/01/02. + */ + +#ifndef ESPNODE_MODBUS_FN_H +#define ESPNODE_MODBUS_FN_H + +#include +#include +#include + +/** + * Build "read holding registers" packet + * + * @param buf buf to write to + * @param len buf len + * @param resplen expected response length (if not exception) + * @param mbAddr mb address + * @param ref first register number + * @param qty register quantity + * @return number of buf bytes if success, negative if error + */ +int mb_build_fc3(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, uint16_t qty); + +/** + * Parse "read holding registers" response + * + * @param buf buf with the response bytes + * @param len response buf len + * @param dst store results here + * @param capacity capacity of "dst" + * @return num of results, negative if error + */ +int mb_parse_fc3(const uint8_t *buf, size_t len, uint16_t *dst, size_t capacity); + +/** + * Build "read input registers" packet + * + * @param buf buf to write to + * @param len buf len + * @param resplen expected response length (if not exception) + * @param mbAddr mb address + * @param ref first register number + * @param qty register quantity + * @return number of buf bytes if success, negative if error + */ +int mb_build_fc4(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, uint16_t qty); + +/** + * Parse "read input registers" response + * + * @param buf buf with the response bytes + * @param len response buf len + * @param dst store results here + * @param capacity capacity of "dst" + * @return num of results, negative if error + */ +int mb_parse_fc4(const uint8_t *buf, size_t len, uint16_t *dst, size_t capacity); + +/** + * Build "write holding registers" packet + * + * @param buf buf to write to + * @param len buf len + * @param resplen expected response length (if not exception) + * @param mbAddr mb address + * @param ref first register number + * @param data register data to write, as an array + * @param qty register quantity + * @return number of buf bytes if success, negative if error + */ +int mb_build_fc16(uint8_t *buf, size_t len, size_t *resplen, uint8_t mbAddr, uint16_t ref, const uint16_t *data, uint16_t qty); + +/** + * Parse "write holding registers" response + * + * @param buf buf with the response bytes + * @param len response buf len + * @return 0 if success, negative if error + */ +bool mb_parse_fc16(const uint8_t *buf, size_t len); + +#endif //ESPNODE_MODBUS_FN_H diff --git a/main/periph_init.c b/main/periph_init.c index 5443065..a982d5a 100644 --- a/main/periph_init.c +++ b/main/periph_init.c @@ -3,6 +3,8 @@ #include "driver/i2c.h" #include "data_report.h" +#include + static const char *TAG = "periph_init"; esp_err_t periph_init() { @@ -38,6 +40,7 @@ esp_err_t periph_init() { // senseair i2c { +#if 0 int i2c_master_port = I2C_NUM_1; i2c_config_t conf2 = { .mode = I2C_MODE_MASTER, @@ -57,6 +60,67 @@ esp_err_t periph_init() { ESP_LOGE(TAG, "Err in i2c_driver_install"); return rv; } +#else + int i2c_co2_port = I2C_NUM_1; + + const uart_config_t uart_config = { + .baud_rate = 9600, + .data_bits = UART_DATA_8_BITS, + .parity = UART_PARITY_DISABLE, + .stop_bits = UART_STOP_BITS_1, + .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, + .source_clk = UART_SCLK_APB, + //.use_ref_tick = true + }; + + ESP_ERROR_CHECK(uart_driver_install(i2c_co2_port, + /* rxbuf */ 256, /* txbuf */ 256, /* que */ 0, /* uart que */ NULL, /* alloc flags */ 0)); + + ESP_ERROR_CHECK( uart_param_config(i2c_co2_port, &uart_config) ); + + ESP_ERROR_CHECK(uart_set_pin(i2c_co2_port, +// CONFIG_PIN_I2C_SCL1, +// CONFIG_PIN_I2C_SDA1, + CONFIG_PIN_I2C_SDA1, + CONFIG_PIN_I2C_SCL1, + UART_PIN_NO_CHANGE, + UART_PIN_NO_CHANGE)); + // Set UART pins(TX, RX, RTS, CTS) +#endif + } + + // outputs + { + gpio_config_t gpioconf = { + .pin_bit_mask = (1 << CONFIG_PIN_CO2_COMSEL) | (1 << CONFIG_PIN_CO2_EN), + .mode = GPIO_MODE_OUTPUT, + }; + + rv = gpio_config(&gpioconf); + if (rv != ESP_OK) { + ESP_LOGE(TAG, "Err in gpio_config"); + return rv; + } + + gpio_set_level(CONFIG_PIN_CO2_COMSEL, 1); // low=I2C + gpio_set_level(CONFIG_PIN_CO2_EN, 1); // active high + } + + // input + { + gpio_config_t gpioconf = { + .pin_bit_mask = (1 << CONFIG_PIN_CO2_NRDY), + .mode = GPIO_MODE_INPUT, + .pull_up_en = 1, + .pull_down_en = 0, + .intr_type = GPIO_INTR_DISABLE, + }; + + rv = gpio_config(&gpioconf); + if (rv != ESP_OK) { + ESP_LOGE(TAG, "Err in gpio_config"); + return rv; + } } return ESP_OK; diff --git a/main/settings.c b/main/settings.c index f2496b2..88a2e10 100644 --- a/main/settings.c +++ b/main/settings.c @@ -118,12 +118,20 @@ void settings_load(void) NVSCHECK(nvs_get_str(storage, "ntp_srv", g_Settings.ntp_srv, &capacity)); ensure_str_terminated(g_Settings.ntp_srv, NTP_SRV_LEN); } + { + size_t capacity = 10; + NVSCHECK(nvs_get_blob(storage, "co2_calib", g_Settings.co2_calib, &capacity)); + } + { + size_t capacity = BSEC_MAX_STATE_BLOB_SIZE; + NVSCHECK(nvs_get_blob(storage, "bsec_state", g_Settings.bsec_state, &capacity)); + } } void settings_persist(enum settings_key_enum what) { esp_err_t rv; - char name[24]; +// char name[24]; #undef NVSCHECK #define NVSCHECK(callback) \ @@ -152,6 +160,14 @@ void settings_persist(enum settings_key_enum what) if (what==SETTINGS_ALL || what==SETTINGS_ntp_srv) { NVSCHECK(nvs_set_str(storage, "ntp_srv", g_Settings.ntp_srv)); } + + if (what==SETTINGS_ALL || what==SETTINGS_co2_calib) { + NVSCHECK(nvs_set_blob(storage, "co2_calib", (void*) g_Settings.co2_calib, 5*sizeof(uint16_t))); + } + + if (what==SETTINGS_ALL || what==SETTINGS_bsec_state) { + NVSCHECK(nvs_set_blob(storage, "bsec_state", (void*) g_Settings.bsec_state, BSEC_MAX_STATE_BLOB_SIZE)); + } } uint16_t app_get_bootcount() diff --git a/main/settings.h b/main/settings.h index 45626ff..297f217 100644 --- a/main/settings.h +++ b/main/settings.h @@ -10,6 +10,7 @@ #include #include #include +#include #define CONSOLE_TELNET_PORT CONFIG_CONSOLE_TELNET_PORT #define CONSOLE_PW_LEN CONFIG_CONSOLE_PW_LEN @@ -20,6 +21,8 @@ extern nvs_handle g_nvs_storage; #define NTP_SRV_LEN 32 #define DEF_NTP_SRV "pool.ntp.org" +#define CO2_CALIB_DEF ({0,0,0,0,0}) + /* type , name , suffix , defval , generate load/save funcs * , , save fn - use 'none' if unused to avoid build errors * , , , save fn var prefix */ @@ -32,6 +35,8 @@ extern nvs_handle g_nvs_storage; X(char , console_pw, [CONSOLE_PW_LEN], "" , false , none , ) \ X(bool , ntp_enable , , 1 , true , bool , &) \ X(char , ntp_srv ,[NTP_SRV_LEN], DEF_NTP_SRV , false, none , ) \ + X(uint16_t , co2_calib ,[5], {}, false, none , ) \ + X(uint8_t , bsec_state ,[BSEC_MAX_STATE_BLOB_SIZE], {}, false, none , ) \ X(bool , dhcp_wd_enable , , 1 , true , bool , &) \ X(bool , dhcp_enable , , 1 , true , bool , &) \ X(uint32_t , static_ip , , 0 , true , u32 , &) \ diff --git a/main/voc_sensor.c b/main/voc_sensor.c index e06d250..a947fe3 100644 --- a/main/voc_sensor.c +++ b/main/voc_sensor.c @@ -23,6 +23,7 @@ static const char *TAG = "voc"; #include "bme68x_defs.h" #include "bsec2.h" #include "periph_init.h" +#include "settings.h" struct sensor_itf { uint8_t dev_addr; @@ -30,7 +31,7 @@ struct sensor_itf { static struct sensor_itf gas_sensor_intf = {}; static struct bme68x_dev gas_sensor = {}; -static struct bsec2 gas_sensor_bsec = {}; +static struct bsec2 hBsec = {}; void bsec2_errormsg(const char *msg) { ESP_LOGE("BSEC", "%s", msg); @@ -103,7 +104,7 @@ static esp_err_t voc_init(void) { int8_t rslt; gas_sensor_intf.dev_addr = BME68X_I2C_ADDR_LOW; gas_sensor.intf_ptr = &gas_sensor_intf; - gas_sensor.amb_temp = 25; // TODO set this from senseair! + gas_sensor.amb_temp = 25; gas_sensor.intf = BME68X_I2C_INTF; gas_sensor.read = user_i2c_read; gas_sensor.write = user_i2c_write; @@ -134,66 +135,64 @@ static void new_data_callback( return; } - // TODO do something with this - struct data_report my_report = {}; - ESP_LOGI(TAG, "BSEC outputs: timestamp = %d", (int) (outputs->output[0].time_stamp / INT64_C(1000000))); + ESP_LOGD(TAG, "BSEC outputs: timestamp = %d", (int) (outputs->output[0].time_stamp / INT64_C(1000000))); for (uint8_t i = 0; i < outputs->nOutputs; i++) { const bsecData output = outputs->output[i]; switch (output.sensor_id) { case BSEC_OUTPUT_IAQ: - ESP_LOGI(TAG, "\tIAQ = %f, accuracy %d", output.signal, (int) output.accuracy); + ESP_LOGD(TAG, " IAQ = %f, accuracy %d", output.signal, (int) output.accuracy); my_report.iaq = output.signal; my_report.iaq_ready = (3 == (int) output.accuracy); // calibration finished break; case BSEC_OUTPUT_STATIC_IAQ: - ESP_LOGI(TAG, "\tSTATIC_IAQ = %f, accuracy %d", output.signal, (int) output.accuracy); + ESP_LOGD(TAG, " STATIC_IAQ = %f, accuracy %d", output.signal, (int) output.accuracy); my_report.iaq_static = output.signal; break; case BSEC_OUTPUT_CO2_EQUIVALENT: - ESP_LOGI(TAG, "\tCO2_EQUIVALENT = %f, accuracy %d", output.signal, (int) output.accuracy); + ESP_LOGD(TAG, " CO2_EQUIVALENT = %f, accuracy %d", output.signal, (int) output.accuracy); my_report.iaq_co2_ppm_equiv = output.signal; break; case BSEC_OUTPUT_BREATH_VOC_EQUIVALENT: - ESP_LOGI(TAG, "\tBREATH_VOC_EQUIVALENT = %f, accuracy %d", output.signal, (int) output.accuracy); + ESP_LOGD(TAG, " BREATH_VOC_EQUIVALENT = %f, accuracy %d", output.signal, (int) output.accuracy); my_report.iaq_voc_ppm_equiv = output.signal; break; case BSEC_OUTPUT_RAW_PRESSURE: - ESP_LOGI(TAG, "\tRAW_PRESSURE = %f", output.signal); + ESP_LOGD(TAG, " RAW_PRESSURE = %f", output.signal); my_report.pressure = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_RAW_TEMPERATURE: - ESP_LOGI(TAG, "\tRAW_TEMPERATURE = %f", output.signal); + ESP_LOGD(TAG, " RAW_TEMPERATURE = %f", output.signal); my_report.temperature_raw = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_RAW_HUMIDITY: - ESP_LOGI(TAG, "\tRAW_HUMIDITY = %f", output.signal); + ESP_LOGD(TAG, " RAW_HUMIDITY = %f", output.signal); my_report.humidity_raw = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_RAW_GAS: - ESP_LOGI(TAG, "\tRAW_GAS = %f", output.signal); + ESP_LOGD(TAG, " RAW_GAS = %f", output.signal); my_report.gas_raw = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE: - ESP_LOGI(TAG, "\tSENSOR_HEAT_COMPENSATED_TEMPERATURE = %f", output.signal); + ESP_LOGD(TAG, " SENSOR_HEAT_COMPENSATED_TEMPERATURE = %f", output.signal); my_report.temperature = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY: - ESP_LOGI(TAG, "\tSENSOR_HEAT_COMPENSATED_HUMIDITY = %f", output.signal); + ESP_LOGD(TAG, " SENSOR_HEAT_COMPENSATED_HUMIDITY = %f", output.signal); my_report.humidity = output.signal; my_report.thpg_ready = true; break; case BSEC_OUTPUT_STABILIZATION_STATUS: - ESP_LOGI(TAG, "\tSTABILIZATION_STATUS status = %d", (int) output.signal); + ESP_LOGD(TAG, " STABILIZATION_STATUS status = %d", (int) output.signal); break; case BSEC_OUTPUT_RUN_IN_STATUS: - ESP_LOGI(TAG, "\tRUN_IN_STATUS = %d", (int) output.signal); + ESP_LOGD(TAG, " RUN_IN_STATUS = %d", (int) output.signal); break; default: break; @@ -202,6 +201,9 @@ static void new_data_callback( if (pdPASS == xSemaphoreTake(g_mux_data_report, pdMS_TO_TICKS(1000))) { if (my_report.thpg_ready) { + ESP_LOGI(TAG, "%.1f%%r.H, %.1f°C, %.0f Pa, gas %.0fR", + my_report.humidity, my_report.temperature, my_report.pressure, my_report.gas_raw); + g_data_report.thpg_ready = true; g_data_report.thpg_timestamp = xTaskGetTickCount(); g_data_report.humidity = my_report.humidity; @@ -215,6 +217,11 @@ static void new_data_callback( } if (my_report.iaq_ready) { + ESP_LOGI(TAG, "IAQ %.1f, IAQ_s %.1f, CO2eq %.1f ppm, VOCeq %.1f ppm", + my_report.iaq, my_report.iaq_static, + my_report.iaq_co2_ppm_equiv, + my_report.iaq_voc_ppm_equiv); + g_data_report.iaq_ready = true; g_data_report.iaq_timestamp = xTaskGetTickCount(); g_data_report.iaq = my_report.iaq; @@ -237,7 +244,7 @@ void voc_read_task(void *param) { goto abort; } - int rv = bsec2_init(&gas_sensor_bsec, &gas_sensor); + int rv = bsec2_init(&hBsec, &gas_sensor); if (rv != 0) { ESP_LOGE(TAG, "Error in bsec init: %d", rv); goto abort; @@ -261,7 +268,7 @@ void voc_read_task(void *param) { BSEC_OUTPUT_RUN_IN_STATUS, }; - rv = bsec2_updateSubscription(&gas_sensor_bsec, + rv = bsec2_updateSubscription(&hBsec, sensorList, sizeof(sensorList) / sizeof(bsecSensor), BSEC_SAMPLE_RATE_LP); @@ -271,21 +278,35 @@ void voc_read_task(void *param) { goto abort; } - bsec2_attachCallback(&gas_sensor_bsec, new_data_callback); + bsec2_attachCallback(&hBsec, new_data_callback); ESP_LOGI(TAG, "BSEC library version %d.%d.%d.%d", - gas_sensor_bsec.version.major, - gas_sensor_bsec.version.minor, - gas_sensor_bsec.version.major_bugfix, - gas_sensor_bsec.version.minor_bugfix); + hBsec.version.major, + hBsec.version.minor, + hBsec.version.major_bugfix, + hBsec.version.minor_bugfix); - // TODO add bsec state persistence to NVS at some landmark intervals, e.g. 1 day - // TODO periodic updating of sensor ambient temp + const uint32_t state_persist_time_ticks = 12 * 3600 * 1000; + _Static_assert(configTICK_RATE_HZ == 1000, "1kHz tick"); + uint32_t last_state_persist = xTaskGetTickCount(); + + ESP_LOGI(TAG, "Restore BSEC state"); + bsec2_setState(&hBsec, g_Settings.bsec_state); while (1) { - rv = bsec2_run(&gas_sensor_bsec); + rv = bsec2_run(&hBsec); if (false == rv) { ESP_LOGE(TAG, "Error in bsec run!"); + } else { + uint32_t tickNow = xTaskGetTickCount(); + uint32_t elapsed = tickNow - last_state_persist; + if (elapsed > state_persist_time_ticks) { + ESP_LOGI(TAG, "Read & persist BSEC state"); + last_state_persist = tickNow; + if (bsec2_getState(&hBsec, g_Settings.bsec_state)) { + settings_persist(SETTINGS_bsec_state); + } + } } vTaskDelay(pdMS_TO_TICKS(100)); } diff --git a/sdkconfig b/sdkconfig index 693e8b1..b0ed00a 100644 --- a/sdkconfig +++ b/sdkconfig @@ -136,6 +136,9 @@ CONFIG_PIN_I2C_SDA0=16 CONFIG_PIN_I2C_SCL0=17 CONFIG_PIN_I2C_SDA1=5 CONFIG_PIN_I2C_SCL1=18 +CONFIG_PIN_CO2_NRDY=23 +CONFIG_PIN_CO2_COMSEL=13 +CONFIG_PIN_CO2_EN=15 # end of Pin mapping #