Important : You’ll need to add keypad library in Arduino software for this code to compile properly.
The files contain :
Components required :
1) 1 x Arduino Uno R3 Board (Buy here)
2) 1 x 16×2 LCD (Buy here) + 1 x LCD Breakout Board (Buy here)
3) 1 x 170 Point BreadBoard (Buy here)
4) 1 x Single Channel 5V Relay Module (Buy here)
5) 1 x 4*4 Keypad Matrix (Buy here)
6) 1 x 5V Small Buzzer (Buy here)
The codes and schematics are working and have been thoroughly tested before creating this listing.
In case of any issue, feel free to contact us on mail (email@example.com) or via whatsapp (+91-9717166063).