3Pcs C51 4 Bits Electronic Clock Electronic Production Suite DIY Kits
AT89C2051-based of four electronic clock kit
Supply voltage: 3V ~ 6V
PCB Size: 52 x 42mm
Seconds correction (for precise School)
Switch to every minute independent display interface whole point of time (8-20 o'clock chime can be turned off)
Two alarm settings (you can turn off the alarm function)
0.56 inch special red digital clock for display
Import AT89C2051 for master chip
1.2mm thick PCB made from military grade FR-4 board
Accurate travel time, travel time error range error -1 to +1 seconds every 24 hours
3 x Electronic Clock DIY Kits
This produce is DIY kits, not the end product! You need to have some electronic knowledge and ability.
We don't supply EN manuals.