wip:

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(ate0002)

main/CMakeLists.txt

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+idf_component_register(SRCS "main.c" INCLUDE_DIRS "")

main/main.c

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+void app_main(void)
+{
+    
+}