A simple, low cost stereo VU meter using LEDs, which are more robust than traditional needle meters. Connects directly to the speaker terminals of a stereo audio power amplifier to provide an approximate visual indication of the output power.
A pair of LM3915 dot/bar display driver ICs are used to drive 2 rows of 10 rectangular LEDs (7 green and 3 red) in a moving bar display. Each row of LEDs spans a power range of 0-30 dB in ten 3dB steps.
This VU meter indicates "peak music power". Ideal add-on module for any of our amplifier kits, or other audio equipment.
Specifications| Input Voltage | 12Vdc (e.g. Order Code 660.446UK with connector 777.001UK or 778.106UK is suitable) |
| Display | 2 x 10 rectangular LEDs |
| Board Dimensions | 65 x 42 mm |
| Board Connections | Solder pads |
| Product Format | SELF-ASSEMBLY Electronic Kit (KT) Product Formats Info |
| Documentation | User Manual LM3915 Datasheet (opens in new tab) |
