Questions tagged [button]
Please do not use this tag. Use a "switch" tag instead
431
questions
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2
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63
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Toggle switch from button and capacitor
In my head I see it something like this:
What it must to do? When I push button first, capacitor will charge and LED will emit(B->C in transistor). Before capacitor will be discharged and while ...
0
votes
0
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46
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Dimmer circuit for LED brightness control
I have a circuit using 555 timer with 2 tact switches to increase and decrease the brightness of LED, but what I need is to store the last state of circuit whether it is on/ off and also automatically ...
- 1
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3
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84
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Car button - Switch current impulse to relay
I will add momentary push button to car infotainment panel (instead of blank).
It's VW/Audi original button which I want to use to switch relay (ys-rt1c - Timer delay turn off) to supply 12 V for rear ...
- 1
0
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0
answers
18
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Wiring of buttons in solenoid and PIR sensor
Folks, have been working on the project and I'd appreciate any help with checking if everything wired correctly and if there's anything needs to be added or is redundant.
Project is straightforward: ...
- 1
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votes
1
answer
33
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Double function reset button, one physical and one by another MCU
I am facing a little problem on a CPB project on a reset function because a need one physical button and one programmable one by an output pin of an Annex MCU. How can I manage the positive signal ...
- 33
2
votes
7
answers
426
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A circuit that temporarily keeps the toy on after pressing the button
I'm working on a project to add a time delay to the button, so that when pressed, the toy plays for, say, 15 seconds and turns off. The toy is intended for children with disabilities and sometimes ...
- 35
1
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0
answers
81
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Convert capacitive sensor into physical button?
Is it possible to turn a capacitive button in to a protruding mechanical one?
I am thinking something round that sticks to a surface with a capacitive button on it and is essentially just a button ...
- 111
2
votes
3
answers
526
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On / off push button flip-flop PCB?
I'm hoping someone could guide me in the right direction. I have an ongoing project that seemed simple: to utilize a push button. When you press it once, it toggles the LEDs on; when you press it ...
0
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2
answers
195
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Emergency stop behavior - state of normally open switch when activated
I am using and emergency stop in an application. It is a push button with a twist release. I have the main circuit connected to the normally closed side and a detection circuit wired to the normally ...
- 1
0
votes
1
answer
71
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Fixing SMD joystick button to PCB
I have ordered some of these small joystick buttons and I'm not sure if they will be properly fixed just with the 6 soldering points, as you do some latteral pressure to action them.
If I create a ...
- 589
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2
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161
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Touch button bypass on fan with smart inching switch [closed]
How can I bypass the touch button on fan Sencor SFE 2340WH? I want to of/off fan with smart momentary switch. Below is componets maybe with reading errors.
Components:
TR1-TR5:
HSDQ / BT134-800 / ...
- 3
1
vote
3
answers
145
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What is the cheapest way to connect a 12V input into a PIC?
I have a pushbutton which delivers 12V when is pushed. I want to connect it to a PIC12F1572 input pin. What is the proper way to do it?
My idea was to use voltage divider to reduce voltage under 5V ...
- 67
1
vote
1
answer
833
views
Tactile button switch footprint in KiCAD
I want to use this tactile switch in my PCB design:
https://datasheet.lcsc.com/lcsc/2002271735_XKB-Connectivity-TS-1101-C-W_C318938.pdf
As you can see in the document, the distance between the edges ...
- 1,369
0
votes
2
answers
190
views
"Active Low" Button Circuit Never Records High
I have an FPGA Starter Kit (Lattice MachXO3) which I'm using 25 IOs for push buttons inputs. I'm driving the starter kit and button circuitry from the wall with a 12V AC/DC adapter (rated for up to 2A ...
- 27
0
votes
1
answer
114
views
Multiple individually controlled lights and buttons widely separated [closed]
UPDATED:
I am building a sorting system using lights and buttons. The function is I have multiple items in a bucket I would like to sort to several different bins.
What I would like to have is up to ...
- 111