TCA9555 Module IIC/I2C GPIO Expansion Board 16 Digital Input and Output QDE
11,53 €
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.
Jetzt bei Ebay:
