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4answers

[Others] Rotary encoder keyboard for Hantek PC Scope

Can you please advise on schematic available for a keyboard contaning rotary encoders. This project is for a Hantek 6254 USB PC based Scope.
  • answered Aug 07,2020
    by Jason
4answers

[PCB Prototype] Confusion about GND and no net zones.

Hi, I've been designing a keyboard pcb, and I'm a bit confused about GND and no net zones, as in when I should use them( both layers, or just one? Also, should I have isolated copper fills at ...
  • answered Aug 07,2020
    by Kemio
2answers

[PCB Prototype] Material used as a stiffener for FPC

I need part number of material or its datasheet that I can use as a stiffener for FPC. Parameters of stiffiner are: Pl's thickness - 100um, adhesive's thickness - 50 um. Thank you
4answers

[Others] How do I trigger a TIP32C PNP transistor with a 5V output signal from an NE555 IC?

I would like to know how. What voltage does the TIP32C need to make it as a solid state relay. Thanks for any help.
  • answered Aug 06,2020
    by Gorge
2answers

[Others] Symbol fields are not in the correct place in schematic

Hi all,When I place passive symbols in a schematic the fields, they don't seem to stay where I placed them in the symbol editor and I can't seem to figure out what I'm doing wrong. Has any...
  • answered Aug 06,2020
    by Kemio
4answers

[Others] Cooling problem---150W boost converter + 100W power LED

I have 12V 10A power supply (PC ) and I use 150W boost converter to raise voltage into 32-35 V (1,5-2A) . I added 15x10cm aluminum plate (5mm thickness , 3 cm fins) to cool LED (thermal paste added).I...
  • answered Aug 06,2020
    by Kemio
4answers

[Others] Do anyone know how to make this amplifier run on battery

This amp run on 12-24v ac。
  • answered Aug 06,2020
    by Joson
3answers

[Others] Can anyone identify the part in the picture?

  • answered Aug 06,2020
    by Andrew
4answers

[Others] How to create a delay without pausing the code?

I want to make a pin HIGH for a specific duration of time, but I want the code to keep running while the pin is high, how do I do this?
  • answered Aug 05,2020
    by Paul H
1answers

[PCB Assembly] when will this board be available on Bazaar ?

https://www.pcbway.com/project/shareproject/mXY_Board___Low_Budget_XY_Plotter_Drawing_Robot_Board.html authot said it would be available soon
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