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Questions tagged [touch-panel]

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2answers
56 views

What touch circuit or sensor to use inside a concrete lamp?

Hi I was planning to build a capacitive touch circuit to control a concrete lamp. Will the touch work through 8mm thick concrete slab. If yes please suggest best way. Thanks in advance.
1
vote
1answer
317 views

How can I build a touchpad/trackpad?

Every laptop has one - a touchpad/trackpad - for controlling the mouse. I'd like to build my own, external one. I've looked around and I cannot find a tutorial. I have come across 1 example where a ...
0
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1answer
48 views

PIC16F1827 Capacitive Touch Sensor not Incrementing Timer?

So I have a PIC16F1827 on a breadboard and was trying to get a simple demo working where I touch a wire to turn on an LED using the Capacitive Sensing Module. I was primarily going off this example I ...
1
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0answers
299 views

Raw data acquisition from a capacitive touch screen

I'm trying to integrate an existing PCAP touch screen into an experimental project I'm working on. For it to work the way I want, I need access to the raw data from the touch-screen nodes instead of ...
0
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0answers
51 views

Capacitance measurement, mpr121 touch sensing keyboard

I have been assigned a project where I have to use interface an MPR121 capacitive touch sensing controller with a microcontroller. Aside from the touch detection, one of the requests for the project ...
0
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0answers
60 views

How can I make a capacitive touch panel that can sense position?

I'm trying to make a fairly large touch panel (no display). Or if that's any easier: a set of touch ribbons. The Wikipedia page on capacitive sensing and other online resources seem to pretty much ...
0
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0answers
150 views

What is x-plate-ohms on touch?

I am using tsc2007 on linux. The linux kernel has the following configuration to use tsc2007. https://www.kernel.org/doc/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt ...
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0answers
62 views

Atmel Qtouch library help

I'm trying to have 3 touch sensitive buttons on an ATtiny48 device using Qtouch library. The code was generated using the library wizard inside Atmel studio. I've only added a single condition to act ...
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0answers
42 views

How to design a auto-touch attachment for capacitance screen?

I’m thinking about developing an attachment which is able to “touch” the capacitance touch screen just like the human fingers do, it might be a membrane layer can be sticked to the capacitance touch ...
0
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0answers
489 views

Magnetic connectors on a pcb

I would like to achieve something along the lines of a snap on magnetic connector in my pcb design in order set simple four bit addresses. I'd like to have four solder-jumper type pads on the board ...
0
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0answers
117 views

How to stop capacitive buttons being triggered by acrylic sheet

So I have a bunch of capacitive buttons sitting behind a large 50x50cm acrylic sheet and whenever I place there acrylic sheet over the buttons, they start triggering all by themselves. I can't figure ...
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0answers
739 views

The 4-wire resistive touch is connected to the ADC's input but it doesn't give correct value

I've an STM32F103 MCU and a 4-wire resistive touch. this is the circuit I've wired up: I've written this code: ...
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0answers
340 views

5 wire resistive touch screen controller using a microcontroller and transistors

I'm trying to build a controller for a 5 wire resistive touch screen using one microcontroller's digital outputs interfaced with some transistors (currently trying a solution using BJT). My ...