Posted on March 28, 2017 at 16:31Is it possible to connect an external eeprom to the SPWF01.21 module? The stored eeprom data will be very small >1K and only serve to remember GPIO high or low settings of the modules STM32F103 core that an end user will periodically set if the module loses power. Which interface? I2C, SPI, GPIO, Serial?
