Arduino LCD I2C Tutorial (YwRobot )

LCD Displays (Blue and YELLOW) with I2C/TWI Interface tutorial.

If you bought on ebay an LCD for Arduino with I2C, you may have had trouble starting it ..
There are different versions of 2 and 4 lines. The information is confusing ..
This great tutorial shows you how to make it work in any version.

Link [Arduino-info]

Arduino RGB Lamp via Bluetooth

A DIY Arduino RGB Lamp controlled by Bluetooth

Interesting project that presents Miguel Angel.

He has designed a lamp with a strip of RGB LEDs, which controls via Bluetooth and an Arduino, from a computer.

The computer displays a color palette that lets you change the color of each of the LEDs.

You can download the plans for the lamp.

Link [MADE(by)FRUTOS]

Massive RGBW LED Globe

Disco Planet, a massive RGBW LED array in a 6′ globe

A super ball 6 feet in diameter, with 720 RGBW LEDs, controlled by an Arduino Pro Mini, a MSGEQ7 audio frequency multiplexer (PDF) , and an IR remote.

Link [Hackaday]