Keypad_I2C (community library)

Summary

Name Value
Name Keypad_I2C
Version 0.2.11
Installs 7629
Author Evan Simkowitz esimkowitz@wustl.edu, Mark Stanley mstanley@technologist.com, Alexander Brevig alexanderbrevig@gmail.com, Sandro Lange
Maintainer Evan Simkowitz esimkowitz@wustl.edu
URL https://github.com/esimkowitz/Particle-Keypad-I2C
Repository https://github.com/esimkowitz/Particle-Keypad-I2C.git
Download .tar.gz
All Versions 0.2.11, 0.1.11, 0.1.10, 0.1.9, 0.1.8, 0.1.7, 0.1.6, 0.1.5

Particle IDE library for using a keypad with an I2C I/O expander Pins on Photons are scarce! Don't waste your pins on a keypad when you can connect it over I2C. This library allows makers to integrate a keypad into their project using two simple wires. Currently works with the Adafruit MCP23008 and MCP23017 I2C controllers.

Example Build Testing

Device OS Version:

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Library Read Me

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Particle-Keypad-I2C

Copyright (c) 2017, Evan Simkowitz

The Key library is licensed under LGPLv2.1. The Keypad-I2C library is licensed under GPLv3. The Adafruit_MCP23008 library is under a BSD license. The Adafruit_MCP23017 library is under a BSD license.

Particle-Keypad-I2C is Evan Simkowitz's adaptation of Sandro Lange's Spark Core port of Alexander Brevig and Mark Stanley's Keyboard Arduino library. The Adafruit_MCP23008 library is Evan Simkowitz's Particle IDE port of Limor Fried/Ladyada's library for Adafruit Industries. The Adafruit_MCP23017 library is Paul Kourany's Particle IDE port of Limor Fried/Ladyada's library for Adafruit Industries.

This library allows for operation of a keypad over I2C. This library is compatible with the following Particle boards: Photon, P1, Electron, Core. Currently the supported I2C chips are the MCP23017 and MCP23008.

I plan to add support for more I2C chips in the future so stay tuned! That said, if anyone wants to help me with that, I would be much obliged! Enjoy and please send pull requests if you add any functionality.

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