product description
characteristic
20-pin JTAG / SWD port and / or 4-pin USART1 interface for programming / testing
The external crystal can be connected through the on-board socket for the system clock
Onboard 32.768K crystal oscillator
Two LED indicators for testing, connected to I / O pins
All MCU pins are accessible through the expansion connector
Pin header: 2.54mm (100mil)
Shipping list
Weight: 0.09 kg
