Colorful DIY LED Digital Clock Kit Microcontroller Digital Tube Clock with Thermometer Hourly Chime Function DIY Kit Module

This is a quite fantastic DIY electronic clock. Based on micro controller, IC board and some electronic components, you can easily assemble and solder it quickly. With digital tube, you can watch time clearly no matter day time or at night. It is suitable for DIY enthusiasts, school training lessons etc. Why not not come and purchase one?
Features:
With written program, you can use it directly.
Based on micro controller, precise timekeeping and mini in size.
Easy to set & adjust hour, minute, second ,date, week and hourly chime.
Can be used as thermometer to test and display temperature per 30sec.
Light control, the clock will automatically be brighter during the day than the night.
With transparent case, components can be well protected and the clock looks stylish.
Perfect for electronic DIY enthusiasts, school training lessons etc.
Note: 
1. It can work when blackout with a 3V lithium battery.(not included)
2. You need to solder it yourself.
3. Since its working voltage is DC 5V, thus can be powered through phone charger with a USB wire.
4. For more specific function and application method, please read our English user manual.
Specifications:
Color: Blue / Green / White / Red (optional)
Display: 4-digit LED
Power Supply: 3V CR1220 Button Battery (not included)
Working Voltage: DC 5V
Working Current: 40mA
Clock Size: 7 * 2.5 * 1.2cm / 2.76 * 0.98 * 0.47in
IC Board Size: 7.2 * 2.7cm / 2.84 * 1.06in
Kit Weight: 82g / 2.9oz
Package Size: 12 * 8.5 * 3.5cm / 4.72 * 3.35 * 1.38in
Package Weight: 85.5g / 3.01oz
Package List:
1 * DIY Electronic Clock Kit(Battery not Included)
1 * User Manual(English)