I will make audio level indicator with LM3915 ic. This is a very common simple circuit. There have been many instructors to make this circuit. But I do it a bit differently, freefrom circut.
Hope you guys will receive it
Components I use:
- 5mm yelow LED x8
-5mm red LED x2
- LM3915 ic
- 1k2 resistor
- 10k pot
-1mm core wire
LED VU meters are popular devices, especially for those people who love music. With this device, you can easily look at the level of sound with a glance at the LEDs. if you are thinking about making one for yourself, then rest assured because there is a very popular IC available in the market that can do all the heavy lifting for you and make the building process very easy. which is why in this small tutorial we will be using the popular LM3915 Display Driver IC and build ourselves a simple LED based VU meter.
The circuit diagram of the LED VU meter is very simple and easy to understand. If you look at the pinout of the. LM3915 is a digital IC that is used to create a visual display of sound volume, often called a VU meter. It works by breaking down an audio signal into 10 equal parts and comparing each part to an internal reference voltage. The chip has 10 output pins, each one corresponding to an LED. The voltage level at each output pin is set using a voltage divider. When an audio signal is fed into the chip, it is first rectified to a DC voltage, and then passed through the resistor network. As the voltage of the audio signal changes, the voltage at each output pin also changes. When the voltage at a particular output pin exceeds the reference voltage, the corresponding LED will light up. This gives a visual representation of the volume of the audio signal. To demonstrate the circuit we have used a simple PAM8403 based audio amplifier and a speaker.
I will make audio level indicator with LM3915 ic. This is a very common simple circuit. There have been many instructors to make this circuit. But I do it a bit differently, freefrom circut.
Hope you guys will receive it
Components I use:
- 5mm yelow LED x8
-5mm red LED x2
- LM3915 ic
- 1k2 resistor
- 10k pot
-1mm core wire
LED VU meters are popular devices, especially for those people who love music. With this device, you can easily look at the level of sound with a glance at the LEDs. if you are thinking about making one for yourself, then rest assured because there is a very popular IC available in the market that can do all the heavy lifting for you and make the building process very easy. which is why in this small tutorial we will be using the popular LM3915 Display Driver IC and build ourselves a simple LED based VU meter.
The circuit diagram of the LED VU meter is very simple and easy to understand. If you look at the pinout of the. LM3915 is a digital IC that is used to create a visual display of sound volume, often called a VU meter. It works by breaking down an audio signal into 10 equal parts and comparing each part to an internal reference voltage. The chip has 10 output pins, each one corresponding to an LED. The voltage level at each output pin is set using a voltage divider. When an audio signal is fed into the chip, it is first rectified to a DC voltage, and then passed through the resistor network. As the voltage of the audio signal changes, the voltage at each output pin also changes. When the voltage at a particular output pin exceeds the reference voltage, the corresponding LED will light up. This gives a visual representation of the volume of the audio signal. To demonstrate the circuit we have used a simple PAM8403 based audio amplifier and a speaker.
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