Connecting a keypad over I2C

[ScruffR]

Have you had a look at this?

Adafruit Neopixel Library [PORTED]

###Just updated the NeoPixel library to support the RGBW NeoPixels Important: If you have an old app in Build that you are migrating to a Photon, P1, Electron or Core, please remove the NeoPixel library from your app and re-apply it to update the included library to v0.0.9. If you are creating a new app, simply add the NeoPixel library to your app and you will have the latest v0.0.9. Live in the Particle Libraries - NeoPixel v0.0.9 https://build.particle.io/libs/5756121cd100a78a5a000…

@BDub has just recently added RGBW support