Bluetooth Bedroom Clock!
See the original posting on Hackaday
When [decino]’s old bedroom clock finally bit the dust, he built himself a new one from scratch for fun and functionality.
Initially, he wanted to solder Adafruit NeoPixel lights onto four prototype boards, using a mini-USB for power and a DS1307 to keep the time. However, after soldering the board for the first digit and realizing that carrying on with the other three would be a huge pain, he switched to etching the boards instead — a far more efficient solution. In keeping with this time-saving mindset, he added a Bluetooth module that would allow him to update the clock …read more