It's just my own version of mood light with famous IKEA Mylonit lamp.
Step 1: Take It Apart.
We are going to play with bulb socket.
Step 2: That Was Easy.
Step 3: Where's My Junk Box?
Step 4: Screwdriver Is Required.
Step 5: User Serviceable Parts Are Inside.
I've already had bad experience. ;-(
Step 6: Engine.
Basically this device is programmed as three channel PWM oscillator.
Output of each channel can be connected directly to LED or to power transistor which drives chain of LEDs.
Channels corresponds to Red, Green and Blue colors.
PWM duty determines brightness of LED.
Duty value is randomly calculated and current data is stored in internal EEPROM
There are four different working modes
- slow fading;
- slow switching;
- fast fading;
- fast switching.
Device continuously cycling through modes.
Upon powering up last stored data is used to calculate new duty values so color sequence is always new.
Preprogrammed chip available upon request.
Step 7: Last Step.
Step 8: All Done.
Step 9: Power It Up!