All Questions
Tagged with capacitive capsense
12 questions
4
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2
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Capacitive touch screen sensitivity question
I have a question about capacitive touch sensing. I have read a few related questions already (here, here and here) and I think I understand the basics.
From my understanding, when a human uses a ...
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2
votes
3
answers
509
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Sensing the capacitance value of a material - for an ID system
This is a follow up question to 'How does a Capacitive ID / Signatures / Sensing system work? e.g. Google Bloks'
In the 'Google Bloks' project. A tangible programming experience is created by ...
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0
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1
answer
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Simple capacitive proximity/touch sensor problem
I've found one simple schematics for capacitive sensor on electronics-project-design.com, and implemented it as follows:
The B? is 9v battery. Sorry for the odd-looking schematics: gschem usability ...
- 1,005
2
votes
2
answers
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Transistor selection for 5V LED circuit
I'm having a trouble selecting the proper transistor to switch this LED circuit
simulate this circuit – Schematic created using CircuitLab
The LEDs are 3.6v at 20 mA.
I tried figuring the ...
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0
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2
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ESD protection of capacitive touch doorknob circuit?
This is a follow-up to my question: How can I use a generic doorknob as a capacitive touch sensor?
I am now ready to move beyond the proof-of-concept stage, but I have not yet learned of a ...
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5
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3
answers
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Simplest touch sensor for a copper surface
I'm looking for the simplest way to implement a binary on|off touch switch using a single pole. The touch surface is copper. The position or pressure of the touch is not needed, just simply:
On = ...
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30
votes
5
answers
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How to use a capacitive touch screen without a human hand
I'm a programmer, and I usually hang out over on stack overflow, but I have a electricity question.
I'm trying to interact with an APP on my phone by indirectly touching the the screen. Modern ...
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1
vote
1
answer
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Replacement IC for the touch-button QT1081?
A project I'm working on needs several touch buttons. I found the datasheet for the Atmel QT1081, which supports up to 8 capacitive buttons, with the added advantage for our circuit that there are ...
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6
votes
1
answer
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Capacitive touchscreen [duplicate]
I am doing project in which I want to perform read and write operation by using a capacitive touchscreen. What I know is I can trigger capacitive touch screen by:
By using electromagnet as I heard ...
9
votes
4
answers
11k
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Triggering a capacitive sensor electronically?
I'm working on a little project I call my "Green Box". Basically, I'm trying to drop my electric usage as low as possible, without losing the convenience of my gadgetry.
So far, I'm incorporating a ...
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5
votes
7
answers
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Can a water drop do a "fake" touch on a capacitive touchscreen?
If a capacitive touchscreen is hit by water drops, like rain, will it report a touch?
I'm trying to evaluate what is the most appropriate touchscreen solution to use in an outdoor kiosk.
10
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6
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Capacitive Sensing
Is there a way that I can make an Arduino or other Micro-controller detect a change in capacitance?
I'm thinking of having a screen on my door that only turns on when you touch the metal door handle.
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