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0.56″ C51 4 Bits Digital Electronic Clock AT89C2051 SCM Electronic DIY Kits Welding Practice Learning Kits Red LED
Type: Base on AT89C2051 SCM 4 Bits Digital Electronic Clock DIY Kit
Welding free binding post for DC 3-5V power supply, input 5V, more accurately, error range is -1 to 1 second per 24 hours.
Accurately timing, adjustable hour/minute/second, can switch HH:MM/MM:SS two display model.
Can set 8-20 o’clock on time alarm and two alarm clock.
Adopting high quality 1.2mm PCB, control chip, capacitor, resistor, buzzer etc. PCB is marked installation number, convenient to install.
1005003136374216 – modules
