Home › Tip ARM minisystem devboard AliExpress.com Product – ARM Minisystem Development Board STM32 Development Board Core Board ESP Network STM32F103C8T6 Control Chip:STM32F103C8T6 Operating Chip:5V Extensible Interface:WIFI ESP8266/NRF24L01/WS1053 W5500 interface Flash:W25X16 EEPROM:ATMEL24C02