Summary of How To Build A Clap activated LED Strip Using Arduino
This project demonstrates how to build a clap-activated LED strip using an Arduino-based sound detection system inspired by the Adafruit Secret Knock Drawer Lock. By recording a handclap pattern, users can switch a 1.5-meter white LED strip on and off. The circuit involves a Trinket microcontroller, a microphone sound sensor, transistors, resistors, and other components mounted on a protoboard, all powered by a 12 V supply and housed in an aluminum LED profile with a protective casing.
Parts used in the Clap Activated LED Strip:
- 1x Adafruit Trinket 5V
- 1x Simple white LED strip (1.5 m long)
- 1x LED strip snap connector
- 1x Arduino compatible sound detection module (Microphone)
- 1x Green LED
- 1x 240 Ω resistor
- 1x 10 kΩ resistor
- 1x STP16NF06 transistor
- 1x Pushbutton
- 1x 12 VDC power supply
- 2x Panel mount DC barrel jack - Female
- 1x DC barrel jack - Male
- 1x Breadboard (for prototyping)
- 1x Solderable protoboard (for final circuit)
- Two core wire for the LED strip
- Single core wire for the circuit
- Female headers
- Soldering equipment
- 1x Aluminum profile for LED strip (2m long, with end caps and opal cover)
- 1x Equipment case (88x63x48 mm)
- Drill
- Hot glue
This Instructable shows you how to build a clap activated LED strip. The whole project is based on the Adafruit 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 switch 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 Pushbutton
– 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
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