source code migrating from gitlab

2026-05-15 15:51:41 -04:00
commit 6cf9a21574
28 changed files with 2960 additions and 0 deletions
@@ -0,0 +1,92 @@
+#include "HD44780.h"
+#include "dht.h"
+#include "freertos/idf_additions.h"
+#include "nvs.h"
+#include <esp_err.h>
+#include <esp_log.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "client/client.h"
+#include "wifi/wifi_con.h"
+#include "json/json_convert.h"
+
+#define DHT_PIN 25
+
+#define LCD_ADDR 0x27
+#define SDA_PIN 21
+#define SCL_PIN 22
+#define LCD_ROWS 16
+#define LCD_COLS 2
+
+float convertValue(int16_t val);
+float converTemp(int16_t celsius);
+
+void app_main(void) {
+
+  esp_err_t status = nvs_flash_init();
+  if (status == ESP_ERR_NVS_NO_FREE_PAGES ||
+      status == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+    ESP_ERROR_CHECK(nvs_flash_erase());
+    status = nvs_flash_init();
+  }
+  ESP_ERROR_CHECK(status);
+
+  status = initWifi();
+  if (status == WIFI_FAILURE) {
+    ESP_LOGE(WIFI_TAG, "Failed to connect to Wifi. Exiting");
+    return;
+  } else {
+    ESP_LOGI(WIFI_TAG, "Connected to Wifi Successfully");
+  }
+
+  const char *tag = "TEMP_HUMID";
+  int16_t temp, humid;
+  char tempStr[32], humidStr[32];
+  ESP_LOGI(tag, "Starting our temp/humidity readings");
+  LCD_init(LCD_ADDR, SDA_PIN, SCL_PIN, LCD_COLS, LCD_ROWS);
+
+  while (1) {
+    LCD_clearScreen();
+
+    esp_err_t err = dht_read_data(DHT_TYPE_AM2301, DHT_PIN, &humid, &temp);
+
+    if (err != ESP_OK) {
+      ESP_LOGE(tag, "Error: could not read DHT22 Sensor");
+    } else {
+      // printf("Temp: %d.%d C\n", temp / 10, temp % 10);
+      // printf("Humidity: %d.%d%%\n", humid / 10, humid % 10);
+      //
+      float celsius = convertValue(temp);
+      float humidity = convertValue(humid);
+      float fahrenheit = converTemp(celsius);
+
+      sprintf(tempStr, "T: %.1fC / %.1fF", celsius, fahrenheit);
+      sprintf(humidStr, "Humidity: %.1f%%", humidity);
+      LCD_writeStr(tempStr);
+      LCD_setCursor(0, 1);
+      LCD_writeStr(humidStr);
+
+      // store in JSON object
+      char *json = createJSON(fahrenheit, celsius, humidity);
+      if (!json) {
+        ESP_LOGE("JSON", "Error creating JSON string");
+      } else {
+        ESP_LOGI("JSON", "JSON String %s", json);
+        int len = strlen(json);
+        int res = sendJSON(json, len);
+        if (res < 0) {
+          ESP_LOGE("CLIENT", "Failed to send JSON: %d", res);
+        }
+      }
+    }
+    vTaskDelay(5000 / portTICK_PERIOD_MS);
+  }
+}
+
+float convertValue(int16_t val) { return val / 10.0f; }
+
+float converTemp(int16_t celsius) { return celsius * (9.0f / 5.0f) + 32.0f; }