AT89C2051 DIY soldeer kit 4-digit elktronische Klok

Digital 4 digit display klok zelfbouw kit. Leuk project om het solderen onder de knie te krijgen.

Features:

• AT89C2051-based of four electronic clock kit
• Kit Model: YSZ-4
• Supply voltage: 3V-6V
• PCB Size: 52mm * wide 42mm

Function:

1. Seconds correction (for precise School)
2. Switch to every minute independent display interface
3. whole point of time (8-20 o\'clock chime can be turned off)
4. Two alarm settings (you can turn off the alarm function)

Kit Features:

1. 0.56 inch special red digital clock for display;
2. Import AT89C2051 for master chip;
3. 1.2mm thick PCB made from military grade FR-4 board;
4. accurate travel time, travel time error range error -1 to +1 seconds every 24 hours.