AT89C2051 Digital 4 Bits Electronic Clock Electronic Production Suite DIY Kit Learing Kit for Arduino

AT89C2051 Digital 4 Bits Electronic Clock Electronic Production Suite DIY Kit Learing Kit for Arduino 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: A. 0.56 inch special red digital clock for display; B. Import AT89C2051 for master chip; C.1.2mm thick PCB made from military grade FR-4 board; D. accurate travel time, travel time error range error -1 to 1 seconds every 24 hours. setting, LED flashes the last one, the last one by S2 plus one, between 0 and 9 cycles, digital the greater the faster the clock, press S1 to confirm the setting and return to the clock display. Set.  List:       name specification Quantity serial number 0.25w resistance 4.7K 5 R1.R3-R6 Exclusion 470*9 1 R2 electrolytic capacitor 10uf 1 C1 100UF 1 C4 ceramic capacitor 30p 2 C2, C3 104 1 C5 diode IN4007 2 D1, D2 Nixie tube 0.4″ 1 DS1 crystal oscillator 12HMz 1 T1 key switch 6*6 2 S1, S2 audion 8550 1 Q1 singlechip AT89C2051 1 V1 socket DIP20 1 buzzer 5V 1 V2 terminal KF126-2P 1 J1 circuit board 1     SKU: N/A Categories: DIY, DIY Educational, Learning kit, Project kits