forked from electro/esp-irblaster
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
2.4 KiB
90 lines
2.4 KiB
/* Hello World Example
|
|
|
|
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
|
|
|
Unless required by applicable law or agreed to in writing, this
|
|
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
CONDITIONS OF ANY KIND, either express or implied.
|
|
*/
|
|
#include <stdio.h>
|
|
#include "sdkconfig.h"
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "esp_system.h"
|
|
#include "esp_spi_flash.h"
|
|
#include "driver/ledc.h"
|
|
|
|
void app_main(void)
|
|
{
|
|
printf("Hello world!\n");
|
|
|
|
/*
|
|
* Prepare and set configuration of timers
|
|
* that will be used by LED Controller
|
|
*/
|
|
ledc_timer_config_t ledc_timer = {
|
|
.duty_resolution = LEDC_TIMER_8_BIT, // resolution of PWM duty
|
|
.freq_hz = 38500, // frequency of PWM signal
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE, // timer mode
|
|
.timer_num = LEDC_TIMER_0, // timer index
|
|
.clk_cfg = LEDC_AUTO_CLK, // Auto select the source clock
|
|
};
|
|
// Set configuration of timer0 for high speed channels
|
|
ledc_timer_config(&ledc_timer);
|
|
|
|
ledc_channel_config_t chan = {
|
|
.channel = LEDC_CHANNEL_0,
|
|
.duty = 127,
|
|
.gpio_num = 17,
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE,
|
|
.hpoint = 0,
|
|
.timer_sel = LEDC_TIMER_0
|
|
};
|
|
ledc_channel_config(&chan);
|
|
|
|
#define PWM_ON() do { \
|
|
ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 127); \
|
|
ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0); \
|
|
} while(0)
|
|
|
|
#define PWM_OFF() do { \
|
|
ledc_stop(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0); \
|
|
} while(0)
|
|
|
|
while (1) {
|
|
//const uint8_t bytes[4] = {0b10000000, 0b01111111, 0b00010000, 0b11101111}; // and one 1 at the end
|
|
const uint8_t bytes[4] = {0b10000000 , 0b01111111 , 0b00000000 , 0b11111111}; // and one 1 at the end
|
|
|
|
// Preamble
|
|
PWM_ON();
|
|
ets_delay_us(9000);
|
|
PWM_OFF();
|
|
ets_delay_us(4500);
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
uint8_t byte = bytes[i];
|
|
for (int j = 0; j < 8; j++) {
|
|
bool bit = 0 != (byte & 0x80);
|
|
byte <<= 1;
|
|
if (bit==0) {
|
|
PWM_ON();
|
|
ets_delay_us(588);
|
|
PWM_OFF();
|
|
ets_delay_us(540);
|
|
} else {
|
|
PWM_ON();
|
|
ets_delay_us(590);
|
|
PWM_OFF();
|
|
ets_delay_us(1672);
|
|
}
|
|
}
|
|
}
|
|
|
|
PWM_ON();
|
|
ets_delay_us(600);
|
|
PWM_OFF();
|
|
ets_delay_us(1700);
|
|
|
|
vTaskDelay(pdMS_TO_TICKS(1000));
|
|
}
|
|
}
|
|
|