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0 votes
2 answers
114 views

Circuit To Simulate Capacitive Touch Button Press - Raspberry Pi Zero

I realise similar questions have been asked in the past about automating capacitive touches, but I'm aiming to put this into practise with a simple circuit. I want to be able to simulate / automate ...
RunnerIain's user avatar
2 votes
2 answers
107 views

Vintage capacitive switch

I have this switch from a Philips Electronic 212 turntable. It’s simply two metal pieces, one a ring and the other a button-like center. I’m not sure, but I think it is a capacitive sensor or button. ...
acanessa's user avatar
0 votes
2 answers
926 views

How to create a clearance area around a single PAD in Altium

I'm creating large circular pads (13.5 mm diameter) for some capacitive buttons on ALTIUM. I want to create a circular clearance non-copper space area around each of these pads (around 1..2 mm) to ...
Rodrigo's user avatar
  • 587
5 votes
2 answers
156 views

Does this circuit, used to subtract capacitive response, have a specific name (picture in body)?

What I'm doing: I'm applying voltage pulses to thin films and measuring the resulting current transient, then using these transients to extract the hole mobility. The problem: When the films are ...
Toparity's user avatar
0 votes
1 answer
83 views

Capacitive coupling: how to collect 60uA from this set-up?

I need to collect at least 60uA via capacitive coupling between a high tension Cu cable with PVC insulation and a connector that is acting as the opposite face of the capacitor (can be a copper plate ...
Luigi's user avatar
  • 71
3 votes
2 answers
6k views

Electrically simulate and toggle a capacitive touch

I am interested in testing a capacitive touch device for reliability by simulating touch events periodically. I would like to do this purely electrically if possible (no mechanical parts), or with a ...
plexer's user avatar
  • 131