SundiaLED is a linear clock that uses a string of LEDs to indicate sunrise, sunset, and the current position of the sun. Powered by an [Adafruit Feather M0](https://www.adafruit.com/product/2772), it uses GPS to automatically determine the sun's position and length of the day based on the current longitude, latitude, and date. [[Build log]] ![[IMG_7649.jpg]] # TODO - [x] Working prototype - [ ] Add (or fully convert to) RTC for time (GPS doesn't always acquire very well indoors…) - [ ] Publish source code - [ ] Publish basic plans & schematic # Ideas Maybe a *round* version, like an actual sundial/clock, makes more sense? Certainly would be easier to find a spot on the wall for it. An LDR sensor for auto-dimming would be neat.