Overhauling Aliexpress TM16xx based clock with ESP32


Before throwing out Aliexpress garbage clock to trash bin (it starts to run too fast in a week or two), I’ve decided to open it up and see if it possible to replace original board with ESP (maybe even NTP synced!) clock. And I was in luck! I’ve found TM1628 inside with convienently placed 5-pin header. After half day fiddling with soldering iron I’ve managed to succeed with my plan. All you’ll need is ESP32, Ali crappy clock and some soldering iron skills. By the way, temperature and humidity is read from MQTT.

You can see the result in youtube demo
More details: github repo