| Name | Component name | Quantity |
|---|---|---|
| R1,R2 | Resistor 10K | 2 |
| S1,S2 | Push Button | 2 |
| U2 | 32 LCD 16X2(I2C) | 1 |
| U1 | Arduino Uno R3 | 1 |
| U3 | LM393 Optocoupler | 2 |
| Jumper Cables | Lots |
 |
|---|
| The circuit shows connections for two tacho signals, Will update it to work with 5 tacho signals. |