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Make A Clap Activated LED Strip With Arduino

Make a clap actives LED with Arduino. via instructables

This Instructable shows you how to build a clap activated LED strip. The whole project is based on the Adafruit’s Secret Knock Activated Drawer Lock, where the user can record a secret knock pattern which will open the lock inside the drawer. I thought that I could use this to siwtch an LED strip on and off with a handclap pattern. So let’s begin!

Step 1: Components

I used the following components to build the circuit:

– 1x Adafruit Trinket 5V

– 1 x Simple white LED strip (1,5 m long)

– 1 x LED strip snap connector

– 1 x Arduino compatible sound detection module (Microphone)

– 1 x Green LED

– 1 x 240 Ω resistor

– 1 x 10 kΩ resistor

– 1 x STP16NF06 transistor

– 1 x Pushputton

– 1 x 12 VDC power supply

– 2 x Panel mount DC barrel jack – Female (size depends on the power supply’s jack size)

– 1 x DC barrel jack – Male

– 1 x Breadboard (for prototyping)

– 1 x Solderable protoboard (for the final circuit)

– two core wire for the LED strip

– single core wire for the circuit

– female headers (if you don’t want to solder the microphone and the trinket directly onto the protoboard)

– Soldering equipment

For the casing I used:

– 1 x Aluminum profile for LED strip (2m long, with end caps and opal cover)

– 1 x Equipment case (88x63x48 mm)

– Drill

– Hot glue

Full tutorial


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