Homepage Wiki Forum Buy

Construction manual GNUBLIN Module-Relay


The article will help you during the installation and startup of your MODULE RELAY. For specific steps you will need a soldering iron and the necessary soldering equipment. The following picture shows the relay board with all necessary components.

MODULE-RELAY mit Zubehoer.jpg

Please check, either the photo (above) or from the following list that all components are present.

  • 8 x relay
  • 8 x 2-pin screw terminals
  • 3 x 3-pin headers
  • 2 x 2-pin headers
  • 1 x 14-pin socket
  • 5 x jumper


First, the headers should be soldered (2/3 pin) and the well socket (Gnublin connector).

MODULE RELAY beschreibung.png

At the next step, the relays and the screw terminals can be mounted. You can put together the terminals just see figure below.

Schraubklemmen zusammenstecken.png

'Important' Please note that the openings of the screw terminals outwardly, face away from the circuit board, so that a cable can be attached later.

At the module the I2C address has yet to be set, for that insert the jumpers as described in the following figure:


Now you can connect the module with the help of the ribbon cable with the Gnublin.

At this point, we assume that only one module is connected to the Gnublin. Therefore, the pull-up (termination resistors for I2C) resistors must be placed on the modules - that happens with the two jumpers. See the following figure.

MODULE RELAY pull up.png

If several devices connected to the I2C bus, it is sufficient to terminate once the I2C bus on a module.

In other languages