Arduino and STM32 together
The STM32duino.eu is website for beginners who want to start with better and more powerful microcontrollers than original Arduino/Genuino boards. More FLASH, SRAM, GPIOs, peripherals
Arduino STM32 Nucleo64 ARM Cortex ATmega328 SAMD21 BMP280 Si7021 DS18B20 OLED DHT22 STM32F103