12 Volt Dimmer Kit


The 12V Dimmer Kit V2 lets you control 12V LEDs, fans, motors and more, up to 60W. It has both a knob for continuous variability as well as a button to step through preset levels. Source code and schematic available.

5 in stock (can be backordered)

SKU: TWEDIMMER2019 Category: Tags: , ,


What is it?

The 12V Dimmer Kit V2 is a DIY electronics kit that is an especially efficient PWM (pulse-width modulation) controller for 12V loads up to 60W. Use it to variably dim LEDs or control the speed of DC motors. It comes as a kit and you solder it together.

Why do it?

This is a great kit for people who are learning to solder, or are building projects that need to dim the brightness of LEDs or control the speed of motors or fans. The circuit is very efficient and allows complete control of dimming from 0% to 100%. This easy-to-build kit is fun to assemble and is even more fun to use and show off to your friends.

Benefits & Value

After you build the kit, you will have gained experience in soldering common types of components to a printed circuit board (PCB). Along the way, you’ll have learned some best practices & good habits about electronics assembly. You’ll be better at soldering and can impress your friends! This is also a great kit for folks who are looking to start learning computer programming or embedded system development.

Who benefits?

Parents love seeing their kids learn new skills, and this is a great learning kit for learning how to solder. Teachers can use this simple kit to illustrate basic electronics and soldering concepts to students aged 8 years old and up. Kids love learning new skills and things that blink, so this kit is great for practicing fine motor skills with a cool reward at the end.

What’s included in the kit?

The kit contains:

  • Printed circuit board
  • Microcontroller chip
  • Voltage regulator
  • Dial potentiometer
  • Five (5) resistors
  • Pushbutton
  • Diode
  • Two (2) LEDs
  • Capacitor
  • Three (3) transistors
  • Two (2) terminal blocks

Instructions & Information

Assembly Instructions | Source Code | Schematic

Additional information

Weight .5 oz
Dimensions 3 × 5 × .5 in
Assembly Instructions

Assembly Instructions (PDF): https://www.dalewheat.com/12v-dimmer-kit-v2-schematic/

Source Code

Source Code (PDF): https://www.dalewheat.com/info-content/12LEDcircleCsourcecode.zip


Schematic (PDF): https://www.dalewheat.com/12v-dimmer-kit-v2-schematic/

Assembly Required?

Yes – this kit requires soldering

Extra parts or tools needed?

Rosin-core solder, Soldering iron, Wire cutters, Safety goggles

Warnings & Cautions

Contains small parts, Requires soldering, Adult supervision required

Country of origin