$16.25 per ea

Quantity Price
ea $16.25
4+ $14.50
per ea
All prices shown are (inc. GST)


Sometimes you don’t need ultra-precise PWM control. Based on a 555 Timer, it provides a quick PWM solution for all sorts of applications from power tools to motor speed control, to dimming lights. If it’s just a simple knob-to-control power that you need, then this is the project for you. An ideal for beginners, to provide reliable PWM outputs for 12V systems.

This kit is featured in DIYODE Magazine: Issue 9, March 2018. To follow instructions or to simply read up about the controller visit the

For additonal code, or to discuss this project, visit the
DIYODE Choppy" The PWM Maker Kit Page

Important Note For Kit Buyers:
This product is supplied in component form and requires soldering, drilling, and assembly. We recommend users are familiar with at least basic electronic principles and have the ability to solder.

Why buy an Altronics Kit?
Altronics kits are premium do-it-yourself projects designed to be assembled with ease. However, basic electronics knowledge and soldering skills are essential to construct our kits. A difficulty rating is provided to help determine if your ability is sufficient to build the kit project. Please note, once assembly has been commenced we are unable to honor any warranty claims. Please see the full details here.

Information & Downloads

Warranty & Returns


We offer 12 months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.


Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.

Accessories (Sold Separately)