All Questions
Tagged with capacitive pcb-design
6 questions
0
votes
1
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103
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How to simulate a finger touch electrically to remove noise
I am working on a project with "SIM800L" GSM module, the problem is that there is a noise from the module in the calls and it disappears when I touch the module's body with my hand.
Kindly, ...
0
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2
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926
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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 ...
- 587
1
vote
0
answers
120
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Correct design of capsense controls
I am trying to design a PCB with some capacitive controls. My first iteration did not seem to work well:
This was a 2-layer 1.6mm board with one circular control, and 5 buttons. The board is 48mm ...
- 27.6k
2
votes
1
answer
140
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Capacitive Touch Pad Design with TTP224 ic
I am designing circular capacitive touch pads of Dia:20mm driving from TTP224 IC on my PCB. There will be 2mm glass panel above Touch pads. My PCB contains other circuits like Arduino, Antenna bands ...
1
vote
0
answers
380
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Ground mesh under the capacitive touch pad
I am going replicate a circuit basing from adafruit AT42QT10xx, I will be using the AT42QT1010 variant.
The touch pad is the blue pad bottom layer, but there is this mesh on the top layer after i ...
- 2,004
2
votes
1
answer
1k
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PCB stackup for capacitive buttons, LEDs and other components
The design I am working on has about 30 capacitive buttons, LEDs for back-lighting, about 8-10 ICs (capsense controllers, LED drivers, MCU, etc), many passive components and coin cell batteries.
I am ...
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