This is a sound level meter project from Jaycar. It is based on LM3915 chip. The kit displays the volume intensity via LEDs. It is a visual representation of the audio level.
For the maximum volume of an audio source, the yellow and red LEDs light up. For medium sound level, only GREEN LEDs light up. In the video, you will see all the steps required to build the project.
This is basically an audio amplifier with one sound channel. Build the kit and connect it to an audio source using a mono jack. You will need two kits to make it stereo amplifier. The source can be your another FM radio project, mp3 project, etc.
Continue reading
A digital dice using 74LS47, 74LS90 and seven segment display
Happy Birthday LED Flashing DIY Kit using CD4060 and Music Chip
How to build light explosion LED effect DIY electronic kit using LEDs, NE555 and CD4017
How to build Jaycar’s Sound Level Meter Kit project- KJ8212- Short Circuits Vol II
How to build Jaycar’s No Brainer Amplifier project- KJ8216-PROJECT SC2 #9
How to build Jaycar’s Hee-Haw siren with flashing LED-PROJECT SC2 #3
How to build Jaycar’s Skeet Shooting Game DIY Kit -KJ8220- PROJECT SC2 #11
How to buid Jaycar’s Jiminy The Cricket PROJECT SC2 #14 KJ8224 DIY Electronic Kit
How to build a sound detector clap switch on a breadboard using NE555
How to use infrared music transmitter and receiver
How to use digital clock DIY kit
How to make an inductor for FM transmitter project
How to build a dark sensor using transistor and photoresistor
How to build a touch switch using NE555
How to build a light sensor using an LDR and a transistor
A digital dice using 74LS47, 74LS90 and seven segment display
NE555 and CD4017 electronic dice DIY Kit
How to build Jaycar’s electronic dice DIY Kit KJ8222
Remote operated musical bell DIY Kit
DIY Arduino Kit with ZIF socket
A basic multivibrator using 2 transistors
Rain drop effect NE555 DIY Kit
Sound generator DIY kit using NE555 and photoresistor
CLOCKIT- Arduino based digital clock kit for beginners
3 Digits digital object counter DIY Kit
NE555+74HC595 based 16 LEDs Light Water Flowing Effect Kit
Heart Shaped Multicolor LEDs Flasher DIY Kit
Heart Shaped LED flasher with LDR and Happy Birthday Music
How to build Tetris, Greedy Snake, Car Racing and Plane Shooting Video game
3 LEDs Cycle Flashing Light DIY Kit
