2 STCK. IO-Expandermodul PCF8575 I2C auf 16 IO integrierte Schaltungen für Arduino zum Selbermachen
3,94 €
Have you run out of I/O pins?. On board 3.3V level converter circuit, if you donot solder VCC-VDD pad, the PCF8575 level is 3.3V. Open-drain interrupt output pin for input change interrupt. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
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