51 MCU Systemplatine Kern/Entwicklungsplatine AT/STC Mikrocontroller 4,1 cm*8,9 cm
11,97 €
Port P0 has a pull-up resistor. All IO ports are led out, classic 51 smallest system, saving the trouble of welding. Welding is a round hole socket, easy to replace the crystal oscillator (default 11.0592M).
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