KA2284 Audio Signal Battery AC/DC Level Indicator LED VU Meter Module

Description

KA2284 Module Audio Signal Level Indicator Battery AC or DC VU Meter with LED

This simple circuit is based on the monolithic integrated KA2284, forming a simple and reliable VU meter with LEDs capable of displaying the intensity of a signal and thus its voltage on a logarithmic scale, making it easy to appreciate its magnitude.
This circuit can be used as a VU meter in amplifiers and professional audio systems, but by measuring continuous voltages, it can also be used, for example, as a charge level indicator for a battery in any application built with Arduino or other demo boards, as it is perfectly compatible and simply implementable in terms of connections.

Technical specifications:
Supply voltage: 3.5~12 Vcc (max 16Vcc)
5 LED signal intensity indicators AC or DC
Storage temperature: -40 ~ 125 C
Operating Temperature: -20 ~ 80 C
IC: KA2284

Connection Methods:
1. IN
2. GND
3. GND
4. VCC

Connection Strip: 2.54mm
Dimensions: 29 x 21 x 13 mm

We have datasheets available for all components, if not present in the product download sheet, send us a message from the contact us module and we will publish it as soon as possible on our website.

Tutorial: How to Use the KA2284 VU Meter Module

The KA2284 module is an audio level indicator for AC/DC batteries. Ideal for beginner makers.

What you need

• KA2284 Module
• Arduino Uno
• Battery or power supply

Steps

1. Connect the VCC and GND pins of the module to your power source.
2. Connect the AUDIO input to the audio signal you wish to monitor.
3. If necessary, connect the relay (if present) to an external circuit.
4. Configure the LED brightness according to your preferences.

Mini project

Build a sound alarm system that turns on a lamp when the audio signal exceeds a certain level.

Common mistakes

• Connect power to the AUDIO pin
• Do not properly configure the LED brightness
• Ignore the datasheet for technical specifications

Recommended accessories

• Arduino Uno R3
• LiPo Battery 18650
• Relay 5V 12V

Frequently asked questions

Can the module operate with a battery?
Yes, check the power supply voltage on the datasheet.

What types of audio signals does the module support?
It supports both AC and DC, but check the specifications for frequency limits.