4answers

[Others] What is the best temperature for soldering pcb boards?

Depends on the components? Is there any good tutorial for instruction?Thanks.
  • answered Dec 30,2020
    by Remi
2answers

[Others] Is the use of a optocoupler good for this application?

There is a power source of 75V and I want my Arduino to acknowledge when a switch has been activated. Such as when a switch closes it can read that it has been closed and perform a certain action. Is ...
2answers

[Others] Can I power 3 or more sensors only with a 5-Volt pin from an Arduino UNO?

There are 2 line followers, TCS3200, and a Bluetooth module, they are all powered with 5volt source, can I power them all with the 5-v pin in an Arduino Uno? Will it take a lot of current or burn the ...
9answers

[Others] How can I desolder this micro USB connector?

It seems like its bottom place is completely soldered to the board underneath. I am also considering simply wiring a cord straight to the board.
1answers

[Others] Pcbnew is asking me to connect the resistor pads together. Any way to fix it?

I'm using 1206 0Ω resistors as jumpers, I added them in pcbnew not in the eeschema, pcbnew is asking me to connect the resistor pads together! It is a resistor! Any way to fix that?
  • answered Dec 29,2020
    by Irek
1answers

[Others] How to wire MOSFET transistors when I want to apply a body voltage.

I'm curious where should I apply this voltage? If it will change the threshold voltage, but I can't work out where you would attach a wire to for the body terminal of a MOSFET when they only h...
2answers

[Others] How do I read a data if all of the GPIOs are in output mode.

I'm trying to implement an LCD driver. All my pins have been initiated as GPIO output mode. My question is, how do I read a data if all of the GPIOs are in output mode? I mean, we can always chang...
1answers

[Others] What is negative resistance exactly means?

What is negative resistance, how is it related to oscillators?In my understanding, it's something to do with decreasing current vs increasing voltage. Is it a necessary condition for oscilla...
2answers

[Others] How to achieve energizing a relay with 2 isolated inputs.

I have a 12V relay that I want to be able to energize with two inputs. These inputs might be on individually, or both at the same time. And they must be isolated from each other completely. How can I ...
1answers

[Others] Should I use GPIO 40 pin header instead of USB?

I have a problem with bumping the usb cable that powers my RPI3B+ and it wiggles out and kills power. I was curious if I could cut off the USB end, solder those two wires to female GPOI connectors and...
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Ranking Name Answers
1 PCBWay Team 11
2 Jonathan Scher 3
3 Paul Hupman 2
4 Samarth Jiwarajka 1
5 Engineer 1
6 Ibrahim TKR 1