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Results tagged with switches
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user 43434
Devices to interrupt or route a signal or power one of several ways.
0
votes
3
answers
2k
views
Caps on tactile switch
I know that caps do exist for 12x12mm tactile switches:
and such caps are very standard, we can find a lot.
But is it possible to fit caps on 6x6 mm or 8x8mm or 10x10mm tactile switches? … (not sure if 8x8 or 10x10mm are common or not)
I'm not looking for shopping advice (I know how to order by a supplier), but to know if it's common or not to see caps on such small switches. …
- 2,178
6
votes
5
answers
20k
views
How to inverse behaviour of a switch?
I have a sustain pedal (which is just a momentary switch!) with the wrong polarity (according to the device I'm using it with) :
circuit is CLOSED when pedal is pressed
circuit is OPEN when pedal is …
- 2,178
8
votes
1
answer
6k
views
Rubber push-button
On lots of electronic devices, such as this Korg drummachine/sampler,
there are some soft rubber push buttons.
What are they called? (I'm looking for the most common name, so I'll can find them ea …
- 2,178
2
votes
2
answers
3k
views
"Normally closed" switch: does it use more power than a "Normally open" for a low-power batt...
I have a "normally closed" magnetic door sensor, that I'd like to use with an ATtiny microcontroller.
Does a "normally closed" switch use more power than a "normally open" switch?
i.e. since the …
- 2,178
0
votes
1
answer
991
views
PCB on/off switch
I'm looking for a PCB on/off 2-position switch like this (this comes from a Roland TR09):
All switches that I usually find are 0.3A max, and I'm looking for a 1A switch. … Do PCB switches like this exist in 1A? (I couldn't find any, anywhere, but perhaps I'm looking in the wrong categories of suppliers?). …
- 2,178
0
votes
3
answers
680
views
Line of switches on a breadboard
I'm connecting 8 switches on a breadboard, with a common ground (the already-connected line of the breadboard):
Problem: these switches are always on, like if the 2 pins on the common line make them … I can't believe there isn't a natural solution to connect 8 such switches on a breadboard.
Is there a solution for this? …
- 2,178
9
votes
4
answers
5k
views
How can 16 buttons be connected with only 8 wires?
Here is the product. I understand the idea: these 16 buttons use a 4x4 matrix. 4 lines for rows, 4 lines for columns, and we have 8 cables.
But:
How can this work without any multiplexer ?
Can th …
- 2,178
1
vote
1
answer
7k
views
Are pull-up resistors needed when connecting buttons to a IO expander?
I'm connecting many momentary switches to a IO expander, like the MCP23017:
.
I read that I need to put pull-up resistors for each switch connected to the MCP23017. … Question: do I really need to add resistors myself between the IO expander and the switches or not? …
- 2,178