mircemk| Quantity | Component name | |
| 1 | × | Arduino Nano |
| 1 | × | 40x2 LCD Display |
| 3 | × | 10K Potentiometers |
| 4 | × | 100k Resistor |
| 2 | × | 10K resistor |
| 1 | × | 22K Resistor |
| 2 | × | 100nF capacitor |
DIY Big Arduino VU Meter on 40x2 LCD Dispaly
The advantages of this device are that it is easy to build, and there is a fairly accurate representation of sound level.