This instructable walks you through how to add a wireless remote control to your existing Monkey Light M232 bike lights. I love these lights - 42 rad patterns, loads of different colors, two brightness settings and low power consumption. But one thing seriously missing is wireless control - everytime you wanna turn these on/off or change the pattern/color, you must stop, search for a very small button to push, then start riding again - Really?!? The M232 completely installs on the wheel, so a wired switch would not work. I thought about using bluetooth controlled through a smartphone, but the prospect of clumsily handling and consequently dropping my iPhone led me to consider a basic remote control. And I have tons of 'em. Let the dropping begin!! Also, IR receivers are cheap: less than a buck at Solarbotics!
The general concept: TV remote sends IR signal to IR receiver, IR receiver sends data to Arduino, Arduino triggers a relay which is connected to the M232 power button, power button turns the lights on.
I used a solderless breadboard for initial circuit design. When I was satisfied it worked, I soldered all components onto a breadboard.

Materials needed:
Monkey Light M232 - http://www.monkeylectric.com/m232_bike_light/
any remote control - I used an Apple remote 'cuz it's small
9V battery w/ connector lead
small breadboard
7805 voltage regulator https://www.sparkfun.com/datasheets/Components/LM7805.pdf
Arduino - I used a Pro Mini https://solarbotics.com/product/50725/
IR receiver - I used a TSOP 4038 https://solarbotics.com/product/TSOP4038/
5V relay - I used an Omron M5SB-14 http://www.omron.com/ecb/products/pdf/en-g5sb.pdf
short wires

Tools needed:
soldering iron
utility knife
side cutters
needlenose pliers

Step 1: Arduino Pro Mini

I chose the Mini because it is, well: mini! As it does not have an onboard USB connection, it requires a USB to TTL converter  https://solarbotics.com/product/39240/  to connect to your computer. Select the appropriate board and com port for your Arduino. Make sure you have communication (download sample sketch 'Blink').

About This Instructable


16 favorites


More by TheDrewthSayer: Adding Wireless Control to Monkey Light M232
Add instructable to: