All Questions
Tagged with capacitive arduino
18 questions
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.
...
- 25
0
votes
0
answers
181
views
Capacitive touch sensor senses every materials touch
I have a ttp223 capacitive touch sensor. It has three pins, VCC GND and I/O. I left I/O open for test purposes. I connected the VCC to 5V and GND to ground. When I touch the sensor, its led indicator ...
- 389
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 ...
- 153
0
votes
1
answer
1k
views
Strange capacitive soil moisture sensor readings
I am in the process of building an automated irrigation system using capacitive soil moisture sensors and Arduinos.
My challenge comes in with the soil moisture sensors bought from Banggood.com. I ...
- 1
3
votes
1
answer
3k
views
Simulate capacitive touch
I am using an Arduino Uno and would like to simulate a capacitive tap with zero human contact on my iPhone 5 screen.
What seems to work right now is putting a coin on the screen and connecting the ...
- 135
2
votes
1
answer
791
views
Increase measurement distance of a capacitive proximity sensor - Arduino project
I am working on a 3D tracking interface project that I found online here.
However, instead of using my hand to track, I want to track an aluminum ball with a 2 cm radius, which is connected to ground....
- 21
-2
votes
1
answer
1k
views
capacitive touch buttons through VERY thick glass or macrolon? [closed]
for a science-project I need to create 4-5 capacitive touch buttons through thick glass or macrolon. I think we talk about 15cm atleast, if not 20. I wonder if a big coil or big sheet of tinfoil would ...
- 1
0
votes
0
answers
2k
views
How can I fool an auto-calibrating capacitive touch sensor?
I have a MicroBot Push - looks like this:
Below the blue ring on the top is a capacitive touch pad and a TTP223-BA6 controller. Here's what it looks like under the hood.
It's a long story, but I ...
user29392
3
votes
1
answer
6k
views
Homemade shielding of a wire to a capacitive sensor
I'm using a capacitive sensor CAP1188 with Arduino, connecting 8 of its touch sensor inputs to 8 copper boards that I want to be the actual touch surfaces.
The wires to the sensor are quite long (100 ...
- 133
1
vote
1
answer
261
views
Trigger capacative button
My washing machine is equipped with a capacitive start button. A "button" is marked with paint on the plastic front and on the backside of the panel there is a spring extruding from the control PCB, ...
- 123
1
vote
1
answer
189
views
What are possible reasons for this not to work
I connected a 5V relay to an Arduino. It then opened and closed the relay, which had on a terminal (doesn't matter which one?) a wire that went to an iPhone' screen (with tin foil at the tip). On the ...
- 432
1
vote
2
answers
2k
views
Insufficient ground supply on my circuit? Ground capacitive foil
I'm playing with a wireless sensor device (with atmega, xbee, and Capacitive sensor (simple foil)) that works fine with the lab power supply but as soon as I try it with AA batteries stops working. ...
4
votes
2
answers
2k
views
Making a grounded object capacitive
I am trying to make a copper pipe which is placed in a natural park capacitive. It is placed in the soil meaning that it is already grounded. I am using a basic arduino and their capacitive sensing ...
- 63
-1
votes
1
answer
504
views
Grounding Plexiglass
I have a sheet of plexiglass that has metal strips (Aluminum) that will be connected through wires to an Arduino. The Arduino is grounded but the metal strips are not. The metal strips will rest on ...
- 107
6
votes
2
answers
14k
views
Capacitive AC voltage detection
As I understand it, a non-contact voltage tester works by creating a capacitive connection from a power line to ground, via the detection circuit and the operator's hand/body. This connection passes a ...
- 243
0
votes
1
answer
4k
views
Water level: BIG capacitive level sensor with steel bars?
So I want to measure water level under a bridge, or inside the city drain.
Would it be possible to run two long (4 meter) metal probes, each one enclosed inside a PVC pipe, and placed one next to the ...
- 207
9
votes
4
answers
11k
views
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 ...
- 231
10
votes
6
answers
3k
views
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.
- 4,737