Supported Devices: STM32F03xF/K/C/, F103C8/B (including Blue Pill and Black Pill), F103VCT, F107RCT. ESP8266 Pin STM32 MCU Pin NodeMCU Pin RXD PA9 RXD TXD PA10 TXD Pin4 BOOT0 D2 Pin5 RST D1 Vcc 3.3V 3 ...
[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 chip that boosts the ...