Simple 0-9 Keypad

@tkbiswas50

4 years ago

https://everycircuit.com/circuit/5095461830262784

Simple 0-9 Keypad with minimum components. IC 4510 1No. IC 7432 2Nos. Diode 2 Nos. IC 7447 1No. FND 507/500 1No. Push On Key 10 Nos. 1K Register 10 Nos.