Dual Row 12-Segment Audio Level Meter Indicator Music Spectrum Display Board Welded Tested

Dual Row 12-Segment Audio Level Meter Indicator Music Spectrum Display Board Welded Tested

Please Read Before Purchasing:
Audio signal is taken from a 3.5mm conventional headphone jack, or connected in parallel with the input signal of audio device. Generally we call it a low-level signal, and the volume of audio device must be set to the maximum volume, and the low volume cannot be used. Can not be connected to a car speaker cable, can not be connected to the output end of power amplifier! Wrong connection will cause product damage! If there is no headphone jack nor other connectors, please purchase an adapter (cable) separately. It cannot be used in an environment with audio Bluetooth transmission. This product has only line input, and there is no voice control.

Features:
- Two-line 12-segment music level display.
- Displayed with 7 emerald green segments + 2 orange segments + 3 red segments.
- Upgraded main board and customized LED module.
- Solder joints are reduced by half compared to the old model, and the module pin length does not need to be trimmed.

Package Included:
- 1 x Music Level Display Board
- 1 x 5PIN Cable 20cm

Note:
- It is assembled and has passed tests.
- It is used for hobbyist modification.
- Shell and power supply are not included.

Wiring:


L: Left channel signal input
G: Common ground for left and right channels
R: Right channel signal input
G: Power supply ground
V: 12V DC power supply + (DC 8V-12V 0.1A)

Attention:
1. Audio signal must be a low-level signal, in parallel with the input signal of power amplifier. Do not connect it to power amplifier output or speaker wire. Wrong wiring will cause damage to the level board.
2. When connecting to car speaker, please use high-level conversion to low-level before use, and volume should not be too low, otherwise signal amplitude input to the light board is seriously insufficient, which will affect display effect.
3. DC power supply voltage cannot exceed 12V, not less than 8V, and current is greater than 100MA.



Screw mounting hole diameter is 2mm. The total thickness of switch from the front of the LED module to the back of the circuit board is about 11.8mm. Including socket, the total thickness is about 15.6mm. Due to manual measurement, thicknesses are for reference only.