ThePico-Clock-Greenis an LED digits electronic clock designed for Raspberry Pi Pico. It incorporates high precision RTC chip DS3231, photosensor, buzzer, and buttons, features multiple functions including accurate electronic clock, temperature display, auto brightness adjustment, alarm, and button config. The important part is, rich open source codes and development tutorials are also provided to help you fast get started with Raspberry Pi Pico and make your own electronic clock.Standard Raspberry Pi Pico header, supports Raspberry Pi Pico seriesOnboard high precision RTC chip DS3231, with backup battery holder, maintains accurate timekeeping when main power is offReal-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100Optional format : 24-hour OR 12-hour with an AM/PM indicator2x programable alarm clockDigital temperature sensor output: 3Celsius accuracyEmbedded photosensor for auto brightness adjustment due to the ambient light, power saving and eye careEmbedded buzzer for alarm or hourly ring, etc.3x buttons for configurationColour:blue+blackMaterial:PCBPackage Contents:1 x Pico-Clock-Green1 x Case 1 x USB-A to micro-B cable 1.2m1 x Button cell CR20321 x Screws packOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.