Your cart is empty.
Your cart is empty.MCP23017-E/SP I/O EXPANDER 16 BIT 1.7MHZ DIP-28
Andrew
Reviewed in the United States on October 25, 2022
If you use the adafruit library the code to control these will be almost identical to built in arduino pins. And they have built in input pullups although i wish they were input pulldowns its better than nothing. If you plan on using these with esp32 you'll need to find the 2.0.0 or 2.1.0 version of the adafruit library.
Dachsund Guru
Reviewed in the United States on October 13, 2019
Little pricy but you're paying for the quick shipping. They work great
Mark Serrano
Reviewed in the United States on June 8, 2017
It works great. I am able to use this MCP to expand my I/O pins with ease. I2C is a great interface to work with along with the MCP23017. I suggest looking at the Adafruit MCP23017 library for code examples.Pros:* It works as promised* Solid build* Breadboard friendlyCons:* Not as cheap compare to shift registers but the MCPs are easier to use
adam vondersaar
Reviewed in the United States on June 6, 2017
Worked good until I did something where can't send voltage out of GPIO pins . Nice IC for adding GPIO to ESP8266 boards with 2 GPIO.
Bernard Dock
Reviewed in the United States on June 20, 2017
Works very well with the raspberry pi and the 'wiringpi2' i2c script using python3
Jaycob
Reviewed in the United States on March 28, 2017
Can't say much, it works. Pins are fragile but this isn't a 16 gauge solid copper wire. No instructions which is also noted so don't expect this to be ready to go out of the box. I've accidentally wired it wrong a couple times and some reviews say this will kill it instantly. It's still going strong 24/7 after 4 months.
Stephen L.
Reviewed in the United States on January 20, 2016
Bought this to expand the I/O capability of my pin limited Ardiuno Uno. Easy to use, using info readily available on the internet.
M. Tobin
Reviewed in the United States on January 18, 2015
I used this part to build a two player arcade system with a RaspberryPi.
Recommended Products
