LED tea lights can improve the temper at your dinner desk, poolside, or anyplace else you want a little mild, with out the hazard and problem of an open flame. After buying a set of those fake candles, Roger Bühler thought the flickering wasn’t as pure as he would count on. As an alternative of accepting this example, he modified the candle’s circuitry to accommodate an ATtiny85 for management, and thus his personal customized programming.

Bühler documented the mod on GitHub, together with code and a how-to information. Modifications include first taking aside the screws on the baseplate, then desoldering the primary IC and clipping the LED’s optimistic lead. Two factors on the board are additionally related in order that the LED is correctly earth grounded.

An IC socket/perfboard is ready for the ATtiny85, and connections are made to the primary board for energy, floor, and a PWM LED output. There’s additionally a connection for the candle’s IR enter to the ATtiny, permitting the set’s included IR distant to nonetheless be used.

The ATtiny85 needs to be programmed externally. This isn’t included immediately within the writeup, but it surely references this web page if you wish to use an Arduino Uno for the job. The results of this hack is LED lights that may nonetheless be charged through the inventory charging station, and final for as much as 15 hours. They appear totally inventory on the skin after this mod, and may now be programmed to behave any approach you want!