Fix power management API and variable naming for ESP32-C3 compatibility

firmware/esp32/source/main.cpp

@@ -1,4 +1,3 @@
-#include <iostream>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/semphr.h"
@@ -8,6 +7,8 @@
 #include "esp_task_wdt.h"
 #include "wifi.hpp"
 
+static const char* TAG = "MAIN";
+
 volatile bool criticalErrorFlag = false;
 
 static void watchdogTask(void *pvParameters) {
@@ -16,14 +17,14 @@ static void watchdogTask(void *pvParameters) {
         .idle_core_mask = 0,
         .trigger_panic = true,
     };
-    ESP_ERROR_CHECK(esp_task_wdt_init(&config));
+    ESP_ERROR_CHECK(esp_task_wdt_init(&twdt_config));
     ESP_ERROR_CHECK(esp_task_wdt_add(NULL));
 
     const TickType_t keepAlivePeriod = pdMS_TO_TICKS(8000);
 
     for(;;) {
-        if (critical_error_flag) {
-            ESP_LOGE("Critical error flag raised. Rebooting.");
+        if (criticalErrorFlag) {
+            ESP_LOGE(TAG, "Critical error flag raised. Rebooting.");
             esp_restart();
         }
 
@@ -35,18 +36,15 @@ static void watchdogTask(void *pvParameters) {
 
 extern "C" void app_main(void)
 {
-    ESP_LOGI("BOOT", "Hello from user land – bootloader worked yay!");
+    ESP_LOGI(TAG, "Hello from user land – bootloader worked yay!");
 
-    static const esp_pm_configure_t pm_cfg = {
+    static const esp_pm_config_t pm_cfg = {
         .max_freq_mhz       = 80,
         .min_freq_mhz       = 10,
-        .light_sleep_enable = true,
-        .deep_sleep_enable  = true
+        .light_sleep_enable = true
     };
     esp_pm_configure(&pm_cfg);
 
-    heap_caps_init();
-
     xTaskCreate(watchdogTask, "watchdogs", 2048, NULL, configMAX_PRIORITIES-1, NULL);
     xTaskCreate(wifiTask, "wifi", 4096, NULL, configMAX_PRIORITIES-4, NULL);
 }