Category Archives: Arduino Spot Welder

Due to customer requests and some people having problems making adapter cables to use the Spot Welder with a Lipo battery, you can now get a XT90 adapter cable.

The Version 3.2.1 Update introduces a weld pulse measurement feature.

There is a new Version of the Spot Welder available. Read more to find out what has changed in V3.2

During the last weeks we worked on a big software update for the Arduino Spot Welder which will add many new functions and also make the code more efficient. Read more to find out the details and how to upgrade your Spot Welder with the new software.

This Tutorial will show you how to upload the latest Spot Welder Software to your Arduino Nano and also how to update the Bootloader of the Arduino Nano.

The SMD TVS Diode used on the Spot Welder V3 seems to have problems when using very big car batteries (e.g. 800 CCA). So it is recommended to replace it with a stronger one. Read more to find out the details.

To upload the Arduino Code of the Spot Welder V3 to the Arduino Nano you need to do some preparation. Read more to find out what to do.  

There is a completely new version of the Spot Welder available. Read more to find out the details

With the help of this very simple addon you can power the Spot Welder directly from the car battery instead of a 12V power supply.

New Batch of V2.2 PCBs arrived. There is a little improvement in the V2.2 PCBs now.