Arduino IDE board as M5StickC (look at M5StickT.h) https://github.com/m5stack/M5-StickT/archive/refs/heads/master.zip M5StickT_Lepton_opensource_v1.ino #include <M5StickT.h> #include <Wire.h> #include <SPI.h> #include "Lepton.h" #include "img_table.h" #include "esp_attr.h" #include "esp_timer.h" #include "img/ColorT.h" used EasyLoader tools be easy https://docs.m5stack.com/en/core/m5stickt