init

Makefile

@@ -0,0 +1,8 @@
+#
+# This is a project Makefile. It is assumed the directory this Makefile resides in is a
+# project subdirectory.
+#
+
+PROJECT_NAME := grii
+
+include $(IDF_PATH)/make/project.mk

main/main.c

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2019 by Morgan Allen
+ * 
+ * This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International
+ * https://creativecommons.org/licenses/by-nc/4.0/
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "freertos/event_groups.h"
+#include "driver/spi_master.h"
+#include "esp_system.h"
+#include "esp_log.h"
+#include "nvs_flash.h"
+#include "esp_http_client.h"
+
+#define TAG "CACO"
+
+static uint8_t id;
+
+void app_main() {
+  esp_err_t ret;
+
+  // Initialize NVS.
+  ret = nvs_flash_init();
+  if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
+    ESP_LOGI(TAG, "Erasing flash memory");
+    ESP_ERROR_CHECK(nvs_flash_erase());
+    ret = nvs_flash_init();
+  }
+  ESP_ERROR_CHECK( ret );
+
+  uint8_t *mac;
+  mac = (uint8_t *)malloc(6);
+  esp_efuse_mac_get_default(mac);
+  id = mac[5];
+
+  ESP_LOGI(TAG, "MAC: %X:%X:%X:%X:%X:%X\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+};