build scripts and files

.gitignore

@@ -1 +1,2 @@
 build/
+lib/idf-tools/*

.gitmodules

@@ -0,0 +1,5 @@
+[submodule "lib/esp-idf"]
+	path = lib/esp-idf
+	url = https://github.com/espressif/esp-idf.git
+    branch = master
+    ignore = all

CMakeLists.txt

@@ -1,7 +1,7 @@
 
-# TODO: check version
 cmake_minimum_required(VERSION 3.16)
 
-include($ENV{IDF_PATH}/scripts/project.cmake)
+# For the esp-idf configuration
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 
-project(this)
+project(wombus_led)

main/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "hello_world_main.c"
+                       PRIV_REQUIRES spi_flash
+                       INCLUDE_DIRS "")

main/hello_world_main.c

@@ -0,0 +1,52 @@
+/*
+ * SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: CC0-1.0
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include "sdkconfig.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_chip_info.h"
+#include "esp_flash.h"
+#include "esp_system.h"
+
+void app_main(void)
+{
+    printf("Hello world!\n");
+
+    /* Print chip information */
+    esp_chip_info_t chip_info;
+    uint32_t flash_size;
+    esp_chip_info(&chip_info);
+    printf("This is %s chip with %d CPU core(s), %s%s%s%s, ",
+           CONFIG_IDF_TARGET,
+           chip_info.cores,
+           (chip_info.features & CHIP_FEATURE_WIFI_BGN) ? "WiFi/" : "",
+           (chip_info.features & CHIP_FEATURE_BT) ? "BT" : "",
+           (chip_info.features & CHIP_FEATURE_BLE) ? "BLE" : "",
+           (chip_info.features & CHIP_FEATURE_IEEE802154) ? ", 802.15.4 (Zigbee/Thread)" : "");
+
+    unsigned major_rev = chip_info.revision / 100;
+    unsigned minor_rev = chip_info.revision % 100;
+    printf("silicon revision v%d.%d, ", major_rev, minor_rev);
+    if(esp_flash_get_size(NULL, &flash_size) != ESP_OK) {
+        printf("Get flash size failed");
+        return;
+    }
+
+    printf("%" PRIu32 "MB %s flash\n", flash_size / (uint32_t)(1024 * 1024),
+           (chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded" : "external");
+
+    printf("Minimum free heap size: %" PRIu32 " bytes\n", esp_get_minimum_free_heap_size());
+
+    for (int i = 10; i >= 0; i--) {
+        printf("Restarting in %d seconds...\n", i);
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+    printf("Restarting now.\n");
+    fflush(stdout);
+    esp_restart();
+}

scripts/build.sh

@@ -1,3 +1,10 @@
-#!usr/bin/bash
 
-# TODO: implement
+#!/usr/bin/env bash
+set -e
+
+export IDF_TOOLS_PATH=${PWD}/lib/idf-tools
+export IDF_PATH=${PWD}/lib/esp-idf
+
+. ${IDF_PATH}/export.sh
+
+idf.py build

scripts/repo_setup.sh

@@ -0,0 +1,12 @@
+
+export IDF_TOOLS_PATH=lib/idf-tools
+export IDF_PATH=lib/esp-idf
+
+# if you get python ssl module errors- make sure your python version is 3.12 or lower
+
+# esp-idf install scripts
+bash ./${IDF_PATH}/install.sh esp32s3
+source ${IDF_PATH}/export.sh
+
+# target
+idf.py set-target esp32s3