Calculator DIY Kit 51 Microcontroller Homemade Digital Tube Calculator3478
Power supply mode:USB powered by 5V or 3V button battery,(note that USB and button batteries cannot be powered at the same time, otherwise the button battery be damaged)
Working voltage: 2.8V
Working current:12mA
Sleep state:Less than 1mA
Product name:-054A digital tube display calculator kit
Note:Shipped in pieces, the colors of accessories are random, no specification is accepted, and it not affect the use.
Colour:As Shown
Material:abs
Size:PCB size:113x78mm
Package Contents:
1 set * calculator DIY kit
1 * shell