DIY EC1621 DS3231 Electronic Clock & Acrylic Shell Kit

This DIY EC1621 DS3231 electronic clock & acrylic shell kit has a lots of functions, except that you need to soldering them by yourself. It use the 51 series chip, and also provide a shell for protecting. Except the basic 12-hour/ 24-hour display, it also has the following functions.

Exact timing: Adopts DS3231 chips, official said the accuracy comes to 2PPM.

Chime on every hour: User can set the hour time randomly and choose the ring you like.

Dual Alarm clock: Dual independent alarm clock, user can set the duration and ring.

Temperature: It has the Centigrade and the Fahrenheit, which can be calibrated.

Intelligent light control: It can lower the brightness when gets dark, user can set the light control level (total 5 level) according to preferences.

Display by circle: The Time, Temperature, Date and Week display in circle. It only shows time when you close the circle display.