This is our CR2032 breakout, allowing you to tap into compact, readily-available CR2032 coin cell batteries to power your project, with the flexibility to solder wires, headers and more, alongside M2.5 mounting options and underside soldering pads!

Simply push a CR2032 battery into the holder, and you have access to 3V for your low-power or wearable projects.

There are, of course, only two outputs from a battery like this - 3V and GND - however we've doubled these up in case you're powering multiple devices, and to make it a bit more stable when using with headers in a breadboard project. The pads are 2.54mm-spaced and clearly labelled. You can solder whatever you like to these, such as the included 4-pin 2.54mm header strip (great for breadboard usage), some prototyping wire, or even an 4-way 2.54mm terminal block.

If you're soldering wires, consider using the underside solder pads. We added these because we know just how tricky it is to de-solder and re-solder a wire from a pad hole. With the underside pads, it's much, much easier to re-work and re-use.

We also used M2.5 mounting holes as they're a popular size with easy-to-source fixings...and because our big sausage hands dislike fiddly M2 fixings.

Battery not included.

Key Features

🤏 Compact CR2032 breakout with sturdy metal through-hole battery holder

🔋 Works with widely-available CR2032 coin cell batteries - look around, they're everywhere!

⚡ 3V and GND broken out to clearly labelled 2.54mm pads

↩️ Underside solder pads for easy wire soldering and re-work

🔩 M2.5 mounting holes for fiddly-free mounting

🪙 ENIG (Gold) PCB plating for oxidation resistance and durability

💸 4-pin 2.54mm male header strip included!

Board Layout

Resources

• Assembly guide
• 3D Model (STEP)

Dimensions

Please note that the corner radius may vary due to the manual PCB finishing process

Package Contents

• 1x CR2032 Breakout
• 1x 4-pin 2.54mm male header strip

Battery not included