This is the library which handles the behaviour of the Counter-Strike Bomb Prop. Just install this library in your Arduino IDE and load the example sketch.
Here you can see how I build it
- 16x1 Display with I2C Module
- Keypad (preferably a 4x3 with white keys)
- Passive buzzer
- DFPlayerMini MP3 module
- Micro SD card
- Speaker
- Red and a yellow LED
- Switch
- (Power button)
- Two 220 Ohm resistors for the LEDs
- 100 Ohm resistor for the buzzer
- 10k Ohm resistor for the switch
- Arduino Nano (or any other Arduino with enough pins)
- A PCB, some wires, an old 9V Battery, cardboard, packing paper, a printer, a 3D printer or a cover for the switch and a lot of patience
I bought the keypad from aliexpress but couldn't find the pinout so I had to figure it out myself.
| Pin Arduino | Pin keypad | C/R on Keypad |
|---|---|---|
| 6 | 1 | C2 |
| 7 | 2 | R1 |
| 8 | 3 | C1 |
| 9 | 4 | R4 |
| 10 | 5 | C3 |
| 11 | 6 | R3 |
| 12 | 7 | R2 |
