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Showing posts from September, 2015

Android control RGB LED using HC-05 Bluetooth module with Arduino (Part III) - Make A Night Lamp

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It's been a while since I wrote the RGB LED tutorial on my blog. Not sure if you have done yours. If you would like to learn the whole project from the scratch, please visit these two tutorial first. - Tutorial 1 - Tutorial 2 Recently, I have found a night lamp laying around and we were not used it anymore. I thought, umm.. it might be a good idea to DIY RGB LED into this lamp. Let's get started! This is what the lamp looks like below. It's powered up by a 9V/300mAh adapter. Since Arduino Mini Pro only take 5V or 3.3V, I had to replace a 5V/500mAh adapter from older 2G phones to use with this night lamp. After I opened the light lamp, there was tiny PCB, few wires, and a very small lightbulb under the transparent cover. I removed most of stuff inside to make room for my Arduino board. Since this is a night lamp, there is no need to let this lamp too bright. I decided to use 6 RGB LED to be the light source.  Please refer to my RGB LED tutoria