start working with timers

node1.c

@@ -1,39 +1,103 @@
-#include <hardware/uart.h>
-#include <stdio.h>
-#include <hardware/i2c.h>
-#include "pico/stdlib.h"
 #include "bme280.h"
+#include "pico/stdlib.h"
 #include "pms5003.h"
+#include <hardware/i2c.h>
+#include <hardware/uart.h>
+#include <stdint.h>
+#include <stdio.h>
+
+/**
+ * Balcony Weather Station Node 1
+ * record sensor data and send it to home assistant every 5 minutes
+ */
+
+static pms5003_config pms_config;
+static pms5003_reading current_pms5003_reading;
+
+static bme280_config bem_config;
+static bme280_reading current_bem280_reading;
+static bme280_reading bem280_readings[10];
+static int8_t readings_index = 0;
+
+static bme280_reading calculate_average_bme280_reading() {
+  float tempSum = 0;
+  float pressureSum = 0;
+  float humiditySum = 0;
+  for(int i = 0; i < 10; i++) {
+    tempSum += bem280_readings[i].temperature;
+    pressureSum += bem280_readings[i].pressure;
+    humiditySum += bem280_readings[i].humidity;
+  }
+  bme280_reading average_reading = {
+    .temperature = tempSum / 10,
+    .pressure = pressureSum / 10,
+    .humidity = humiditySum / 10
+  };
+  return average_reading;
+}
+
+/**
+ * Callback function called every 30 seconds
+ */
+static bool cb_30(__unused struct repeating_timer *t) {
+  printf("cb_30: %d\n", readings_index);
+  if(readings_index >= 10) {
+    printf("Preparing data to send\n");
+    readings_index = 0;
+
+    // Calculate average BME280 reading
+    current_bem280_reading = calculate_average_bme280_reading();
+    printf("Tempature: %.2f\n", current_bem280_reading.temperature);
+    printf("Pressure: %.2f\n", current_bem280_reading.pressure);
+    printf("Humidity: %.2f\n", current_bem280_reading.humidity);
+
+    printf("PM1: %.2f\n", current_pms5003_reading.pm1);
+    printf("PM2.5: %.2f\n", current_pms5003_reading.pm2_5);
+    printf("PM10: %.2f\n", current_pms5003_reading.pm10);
+
+    printf("Sending data to home assistant...\n");
+    // TODO: Send data to home assistant
+    return true;
+  }
+
+  // Read BME280
+  printf("Making BME280 Reading\n");
+  current_bem280_reading = bme280_read(&bem_config);
+  bem280_readings[readings_index] = current_bem280_reading;
+
+  if(readings_index == 2) {
+      printf("Warming up PMSS5003\n");
+      pms5003_warmup(&pms_config);
+  }
+
+  if(readings_index == 4) {
+      printf("Starting reads on PMSS5003\n");
+      pms5003_start_reading(&pms_config);
+  }
+
+  if(readings_index == 6) {
+      printf("Finished reading PMSS5003\n");
+      current_pms5003_reading = pms5003_finish_reading(&pms_config);
+  }
+
+  readings_index++;
+  return true;
+};
 
 int main() {
   stdio_init_all();
 
   // Setup BME280
-  bme280_config config;
-  bme280_init(&config, i2c1, 14, 15);
-  bme280_reading current_bem280_reading;
+  bme280_init(&bem_config, i2c1, 14, 15);
 
   // Setup PMS5003
-  pms5003_config pms_config;
   pms5003_init(&pms_config, uart1, 20, 21, 18, 19);
-  pms5003_reading current_pms5003_reading;
+
+  struct repeating_timer timer_30;
+  // TODO: change from 5 sec to 30sec
+  add_repeating_timer_ms(30000, cb_30, NULL, &timer_30);
 
   while (true) {
-    // tight_loop_contents();
-
-    sleep_ms(5000); // wait 5 sec
-    printf("Making reading\n");
-
-    // Read BME280
-    current_bem280_reading = bme280_read(&config);
-    printf("Tempature: %.2f\n", current_bem280_reading.temperature);
-    printf("Pressure: %.2f\n", current_bem280_reading.pressure);
-    printf("Humidity: %.2f\n", current_bem280_reading.humidity);
-
-    // Read PMS5003
-    current_pms5003_reading = pms5003_read(&pms_config);
-    printf("PM1: %.2f\n", current_pms5003_reading.pm1);
-    printf("PM2.5: %.2f\n", current_pms5003_reading.pm2_5);
-    printf("PM10: %.2f\n", current_pms5003_reading.pm10);
+    tight_loop_contents();
   }
 }