Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

3 Channel Spectrum Analyzer

3 Channel Spectrum Analyzer

This 3 channel 15 LED spectrum analyzer is the perfect addition to any audio amp project. It produces fantastic displays on three LED bars that can be individually adjusted for any particular frequency range. The circuit will take line level output from most any audio source, and operates on 12V DC. This means that it can even be run in a car.
1. The circuit expects line level inputs. If you connect it to speaker level, you will have to readjust the circuit every time you change the volume.

2. After the circuit is connected, apply power and signal. Now adjust the pots until the corresponding group of LEDs reacts.

Thanks to Alterac for correcting some errors on the schematic that originally appeared on this page. Read all about it in the 3. Channel Spectrum Analyzer Project thread in the forum.

Visit Here for more.

 

More Articles to Read

Skill Sunday: Power Over Ethernet for Arduino
Skill Sunday: Power Over Ethernet for Arduino
More on Color TFT Displays ~ The Big Ones — 240 X 320
More on Color TFT Displays ~ The Big Ones — 240 X 320
Vertical Pole Climbing Robot
Vertical Pole Climbing Robot
ESP8266 Weather Station Projects
ESP8266 Weather Station Projects
Single tube Lethal Nixie clock
Single tube Lethal Nixie clock
How to make a simple 1 watt audio amplifier (LM386 based)
How to make a simple 1 watt audio amplifier (LM386 based)
Flashing Binaries to DRA7xx Factory Boards Using Device Firmware Upgrade
Flashing Binaries to DRA7xx Factory Boards Using Device Firmware Upgrade
Dot² isn’t your typical coffee table
Dot² isn’t your typical coffee table
Debugging ARM Cortex-M0+ HardFaults
Debugging ARM Cortex-M0+ HardFaults
EMP Jammer build
EMP Jammer build

Top




Shares