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
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