License and credits Arduino IDE is developed and maintained by the Arduino team. The IDE is licensed under GPL. ESP8266 core includes an xtensa gcc toolchain, which is also under GPL. Esptool.py was ...

Arduino have launched an upgrade to their 8-bit Arduino UNO R3 board with the Arduino UNO R4 featuring a 48 MHz Renesas RA4M1 Arm Cortex-M4F 32-bit microcontroller, and an optional ESP32-S3 module for ...