All Questions
Tagged with capacitive touch
10 questions
1
vote
1
answer
143
views
Looking for a large capacitive touch array controller
I'm building a capacitive touch panel.
It has an odd shape, so I resulted to building my own with the capacitive diamond array solution.
It doesn't have a screen underneath, so it's all contained on a ...
CommunityBot
- 1
3
votes
1
answer
599
views
How can I use a microcontroller to trigger an existing capacitive-touch pad?
(Note: I have found several other questions on a similar topic, but none of them address my specific issue.)
I have a lamp that is controlled by non-contact touch buttons. The user-facing surface is ...
CommunityBot
- 1
0
votes
1
answer
319
views
Capacitive touch sense problem with battery powered laptop
I designed a PCB that includes capacitive touch. The circuit works with 5V powered from USB.
When Laptop is connected to 220V line, the PIC can sense capacitance variation.
When Laptop is not ...
CommunityBot
- 1
0
votes
2
answers
640
views
Bypass touch sensor IC with a button?
I want to replace a capacitive touch sensor on a circuit board (I think it’s a TTP223) with a tactile switch to overcome over/under sensitivity issues. I have wired a switch to ground and the CMOS ...
CommunityBot
- 1
1
vote
1
answer
65
views
Is there a single cycle wave trigger circuit?
Is there a circuit design where if the input is high (at any length of time), the output will only be one cycle at a fix amount of time?
I'm currently working on a capacitive touch switch (I'll use ...
- 9,310
1
vote
4
answers
2k
views
ESP32 touch sensor outputs unstable values
I am trying to implement touch functionality of esp32 development board to toggle a led. But on uploading a simple touch detection sketch, output have spikes i.e. usually value remains near 100 but ...
- 31
1
vote
1
answer
422
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Capacitive Touch Faucet Solenoid Battery Box vs AC/DC adapter [closed]
I have a MSTJRY touch kitchen faucet purchased through Amazon. It uses a valve solenoid in line with the water supply to control the on/off of the faucet based on capacitive touch on the faucet stem. ...
- 5,241
1
vote
0
answers
153
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Waterproof capacitive touch-sensor issue
my goal is to develop a waterproof capacitive touch-sensor.
In many sources on the internet, it is said that a mutual-capacitance sensor can achieve this.
For example, in the TI Designs: TIDM-1021 ...
- 690
1
vote
1
answer
59
views
Question Regarding Capacitive Sensor IC
I have this Capacitive Sensor IC
I am trying to understand and analyze how to use this IC.
In the datasheet, on page 13 - Function description, it is mentioned as "There are four selectable non-...
- 88.8k
1
vote
1
answer
865
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Question about capacitive sensor designs with direct touch to copper or aluminum
I've seen some DIY capacitive touch sensor projects where the sensors themselves are strips of aluminum or copper soldered to a non-grounded wire, where the user touches these strips directly with ...
- 3,911