esp32 firmware for a toaster reflow oven WIP!!!!!
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.
 
 
 
 
 
 
reflower/main/gui.c

96 lines
2.2 KiB

#include "gui.h"
#include "nokia.h"
#include "analog.h"
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
static void gui_thread(void *arg);
TaskHandle_t hGuiThread = NULL;
void gui_init() {
printf("GUI init\n");
LCD_setup();
LCD_setContrast(60);
LCD_clearDisplay(0);
LCD_setStr("Hello World", 0, 0, 1);
LCD_updateDisplay();
int rv = xTaskCreate(gui_thread, "gui", 4096, NULL, 6, &hGuiThread);
assert (rv == pdPASS);
}
/**
* Notification API:
*
* 0b1 - knob CW
* 0b10 - knowb CCW
* 0b100 - button released
* 0b1000 - button pressed
*
* @param arg
*/
static void __attribute__((noreturn)) gui_thread(void *arg) {
uint32_t pos = 0;
bool btn = 0;
uint32_t last_wheel_time = 0;
#define NMAX 60
while (1) {
uint32_t value = 0;
xTaskNotifyWait(0, ULONG_MAX, &value, pdMS_TO_TICKS(250));
// printf("Knob event 0x%02x ", value);
if (value & 0b1000) {
// printf("PUSH ");
btn = 1;
} else if (value & 0b100) {
btn = 0;
}
if (value & 0b11) {
uint32_t time = xTaskGetTickCount();
uint32_t increment = 1;
if (last_wheel_time != 0) {
uint32_t ela = time - last_wheel_time;
if (ela < pdMS_TO_TICKS(20)) {
increment = 25;
} else if (ela < pdMS_TO_TICKS(35)) {
increment = 10;
} else if (ela < pdMS_TO_TICKS(75)) {
increment = 5;
}
}
last_wheel_time = time;
if (value & 0b01) {
pos += increment;
}
if (value & 0b10) {
pos -= increment;
}
}
LCD_setRect(0, 15, 83, 35, 1, 1);
char buf[10];
sprintf(buf, "%3d %s", pos, btn?"BTN":"");
LCD_setStr(buf, 2, 17, 0);
sprintf(buf, "%.0f C", analog_read());
LCD_setStr(buf, 2, 26, 0);
LCD_updateDisplay();
// printf(">");
// for (int i=0; i<pos; i++) {
// printf(" ");
// }
// printf("#");
// for (int i=pos; i<NMAX; i++) {
// printf(" ");
// }
// printf("<\n");
}
}