Multi-mode pen light: ATTiny85 with RGB LED


This is a bread board prototype of a multi-mode pen light. It shines white, red, green, and blue light. Intensity is adjustable. Strobe, emergency flasher, ‘psychedelic,’ and candle simulation functions. It’s powered by a USB phone battery charger pack and uses an ATTiny85 as the microcontroller.

Here it is in action:

Here’s the schematic:

RLM 85

UPDATE:  And here’s a sketch of what the completed flashlight might look like:

rlm 85 pen light


About engineerzero

Once and future engineer.
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1 Response to Multi-mode pen light: ATTiny85 with RGB LED

  1. engineerzero says:

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