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Results tagged with opto-isolator
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user 11339
An optoelectronic device which combines an optical transmitter and receiver in a single package; commonly used in galvanic-isolated control applications such as power supplies.
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Connecting 6 push buttons with ESP32 with 1 common pin
Hey all I have 6 buttons that have the following voltage:
I want to hook up a 4N25 to each one of these so I can use the ESP32 as a "virtual push" to each of these buttons. When the button is pressed …
- 797
0
votes
1
answer
853
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4n25/35 optocoupler detect led on/off
Hey all i am just wondering if my drawing below is correct in order to have an arduino detect an on or off led on another board using a optocoupler?
My thoughts of the above drawing is that when th …
- 797
-1
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1
answer
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My first schematic of a 2-channel relay board [closed]
Hey all this would be my first try at creating a schematic in KiCad.
The schematic is a basic 2-channel relay.
The inputs are automotive 12v and gnd. This gets converted to 5v by the K78L05-1000R3.
Th …
- 797