PCF8575TS 16 I/O Expander Controller Module DC 2.5-5.5V IIC I2C Interface For R3 MCU Controlling Relay LED Button Buzzer
USD 1.41USD 1.99
PCF8575TS 16 I/O Expander Controller Module DC 2.5-5.5V IIC I2C Interface For R3 MCU Controlling Relay LED Button Buzzer