CJMCU-8575 PCF8575 16-Bit Bidirectional IIC I2C And SMBus I/O Expander Expansion Board
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This PCF8575 16-Bit Bidirectional IIC I2C module can be used for output and input. Together with the Arduino Nano, the Servodriver PCA9685 16-Channel 12-bit PWM Servo Motor Driver I2C Module and the L298N Dual H Bridge Stepper Motor Driver Board For Arduino you can build a very compact control module for a robotcar with 16 PWM- or On/Off drivers and 16 scanpoints. Very easy to couple the PCF8575 module with the PCA9685 module using I2C! No more lack of GPIO's!
Okay, 👌🏻.
ok
My boards arrived a few weeks ago! They are great!! Great vendor!!!
Great quality
This item does exact what it says to be doing, nothing more, nothing less. One of the best things, is the fact that it remembers the last "setting" during power loss, so when the power comes back the bits you have set before still remains. I use them with an ESP8266, and by using them I´m not only get around the limited amount of GPIO:s, I also get rid of the problem with GPIO:s changing state during power-ups, and as mentioned above, this little board also remembers what was set before powering the boards down. -It´s excelent!
working well
Excellent.
Pin pitch not matching strip board. Otherwise good manufactured
GOOD ITEMS