PCA9555A Modul IIC/I2C GPIO Erweiterungsplatine 16 digitale Ein- und Ausgänge UK
8,54 €
TCA9555 PCA9555A Muti-Channel Expansion Board IIC/I2C GPIO Expansion Module 16 Digital Input and Output. TCA9555 is compatible with PCA9555A and can be replaced directly. The LED is designed with a common anode and uses a 2k resistor to limit the current; when the output of the IO port is logic 0, the LED lights up.
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