How to create wall sensors at the back with Electrode Pads
Learn how to create wall sensors at the back with Electrode Pads
If you want to create discreet sensors on the back of your wall, without having to drill through, you can use the Electrode Pads with proximity sensing. This allows you to focus on the graphics at the front of the wall and have all the electronics safely at the back. The only drawback is that the sensors aren’t as precise as they would be if you had the sensors at the front of your wall.
Step 1 Create sensor
From the front, decide where the user is going to interact with your interactive wall. Create a sensor directly behind the wall in that same location. Ideally, this is going to be in the same shape as the interaction point in the front. So for example, if you want the user to touch a circle to trigger an event, you should create a sensor in the form of a circle at the back.
You can use any conductive material to create this sensor, for example, we’ve stencilled it with Electric Paint. Alternatively, you can use a copper sheet to create your sensor.
Step 2 Add Electrode Pad
With your sensor in place, you can now add the Electrode Pad.
If you are able to screw into the wall, use the self tapping screws. Make sure that the screws are screwed in straight. Alternatively, you can use adhesive carbon tabs. With this method, you won’t need to screw into the wall at all, but instead will be sticking the pads onto the sensor. Note that these tabs are very strong and it might be difficult to remove them from the sensor.
Step 3 Apply graphics and test
Now, apply the graphics at the front of your wall. You can either paint them or use vinyl.
Then, plug one end of the shielded cable into the Electrode Pad, the other into the Electrode Sheild. Turn the Touch Board on, or reset it, and test your sensor by touching your graphic.
If you are not getting the output you expected, chances are you need to adjust the settings of the Touch Board, refer to the How to calibrate the sensors for the Interactive Wall Kit for more information.