For my Arduino-powered flickering LED project, I finished the prototype with all the features I wanted:
- Light sensor to turn the LEDs off after the room lights are turned off.
- Button to set the room darkness threshold, since I don’t want to have to reprogram the chip in the future.
- Six LEDs with flickering brightness.
- One steady LED for a differently shaped balloon, which will be used for the status display as well (blink to indicate setting the threshold, as well as to indicate that it noticed the lights went out).