Category Archives: Arduino Spot Welder

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.

There is a new version V2.2 of the prebuilt kits available. It got some amazing new features and pcb upgrades.

In the new V2.2 PCBs the “AutoPulse” feature is integrated, but you can also upgrade your “old” Spot Welder with the new feature pretty easy.

There is a new version of the Spot Welder PCBs available. It features some pcb improvements as well as the new “AutoPulse” feature.