KA2281 integrated circuits, LM3914, etc. According to the vu meter circuits with this circuit has been built on microcontroller circuit pic16f88 stereo really super 2×16 total 32 or mono 16 led, 40 can be used in the form of... Electronics Projects, Microcontroller Controlled VU Meter Circuit "led projects, microchip projects, microcontroller projects, pic16f88 projects, " Date 2019/08/03