For this variation on the original Trippy Nightlight an inexpensive (> $2.50) USB AC charger provides a traditional nightlight plug-in-the-wall form factor. To simplify the main circuit board I removed the download circuitry from the board and instead programmed the PICAXE 08M microcontroller
Total materials cost is about $15.00. The unit has been running problem-free for over six months. Electricity usage is almost too low to measure. Watch the YouTube video below to see the nightlight cycle through its color changes.
Thanks for alerting us to the parts list formatting. I’ve corrected it and the edit should take effect soon.