Category Archives: Arduino Spot Welder

The Welding cables are now made from 7 AWG high flexible silicone wire.

With this software update the Arduino Spot Welder will now recognize if the foot switch is wired wrong and display an error message. Detailed Description: The foot switch needs to be used in no configuration, if it is connected in nc configuration an error message will be displayed during the start up of the spot […]

The Arduino Spot Welder Mosfet Board just got updated to V3.3 The improvements in this new version are: Much wider traces on the bottom of the pcb for the high current connection to the u-shaped aluminum part Mosfet gate resistors directly on the mosfet board, very close to the mosfet gate pins All 8 Pins […]

The welding tips got an upgrade. They are now made from zirkonium copper (CuCrZr) instead of normal copper.

There is a new Sotware V3.3 for the Arduino Spot Welder available. Check out what has been improved.

There is a little bug in the software of the Arduino Spot Welder. Once the weld counter reaches 10.000 welds the display gets corrupted. This was fixed in V3.2.3.

This Tutorial will show you how to upload the latest Spot Welder Software V3.2.2 to your Arduino Nano

There was a little software update that makes it easier to program the Arduino Nano with the Spot Welder Software.

In this article we will figure out if it is possible to use a portable car jump starter as the welding current supply for the spot welder.