MCP23017 - Circuit 16 bit I2C port extension
MCP23017 - Circuit 16 bit I2C port extension
CI-MCP23017
data-lang="en">
Circuit extension to add 16 inputs/outputs using an I2C affair.
Customers who bought this product also bought:
- Miniature microphone Electret Prewired
- wires for prototyping Kit
- Display LCD 2 X 16 I2C with backlight RGB - Grove
- module wifi NodeMCU ESP12E v2
- PI T-Cobbler more Breakout Kit for Raspberry Pi
- USB Micro-B Breakout
- MCP9808 temperature sensor I2C precision
- Multiplexer I2C - TCA9548A
- Mini Breadboard - Plate tests 170 contacts white
More info
Description
You're lack of inputs/outputs on your electronic editing, and there's enough pine for an I2C link. This circuit MCP23017 will you peremettre to add 16 inputs or outputs GPIO with only two wires to connect I2C. Each GPIO can be configured as pullup or open drai programmatically.
The cirduit runs between 2, 7V and 5, 5V, which allows compatibility with logic 3, 3V and 5V without risk. It is possible to exit 20mA on each output to power a LED for example.
I2C addresses are configurable via 3-wire ADR0 to ADR2, which allows to put 8 MCP23017 on the same line I2C, making the total 128 exit GPIO!
Documentation
Arduino library: Adafruit-MCP23017-Arduino-Library