LM3915 based audio Level Indicator Kit. Can be used to indicate sound level. Not Assembled, image is given for reference.
Power supply voltage: DC9V - 12V
PCB Size: 62mm * wide 27mm
Two different instruction modes: strip instructions and fire point-like instructions
Lights provide both vertical and horizontal rows of installation
HAL treated pad
Parameters are printed directly on the PCB components, without reference to the circuit diagram of the situation can be welded directly, very convenient.
HAL treatment pads, solder joints can be better, but beautiful.