2answers

[Others] Wear resistant top layer material

Hello experts, very unusual question: In my design the top surface of the PCB as used a mechanical surface (think of a hockey puck sliding around on it).What materials as part of the pcb fab...
1answers

[Others] Are there licensing issues if I share a design that uses an HDMI ?

If I upload a design that uses pure DVI protocol (no audio, no HDCP, no logo) over an HDMI connector, are there licensing issues if I share that design with the community? I read that there are ...
11answers

[Others] Can I use a transistor as a relay?

I have a hardware component that requires 5V and 300mA to work. The Arduino output current of the Pins is 50mA, to the best of my knowledge. Only 40mA for 5V Pins.My idea was to use the 5V and 2A of a...
1answers

[Others] ttgo with soldered headers

Can you supply your part number LP144with the headers already soldered? It would save me a lot of time.Thanks, Martin Nohr
2answers

[Others] how to place components at bottom layer of PCB on Easyeda.com at the time of design ?

Please anyone tell me how to place components at bottom layer of PCB on Easyeda.com at the time of design. Please anyone help me to design the pcb as soon as possible.
20answers

[Others] Can somebody help me understand how this circuit works, why it oscillates and what the conditions for the oscillations mean?

I'm fairly new to electronics, accidentally made an oscillator with this circuit. As showed in the pic, R5 would be an 8 Ohm speaker, or otherwise there could be an LED to show the oscillation. Th...
2answers

[Others] Asic antminer S19pro

Для ремонта майнингово оборудования мне нужны хешплаты различных Асиков,но больше всего хешплаты майнера S19pro, gerber файла у меня нет , возможно вам уже приходилось делать подобные заказы?
8answers

[Others] Is there another way to achieve it? The buttons of the keypad go to ground when they are pressed.

Hi guys, I need to simulate button presses to a keypad. When one of the buttons are pressed they just go to ground. I have 6 buttons and I want the Arduino to do the same thing as pushing one of the b...
5answers

[Others] Share projects

hi1- where can i see my income?2-i uploaded 6 projects, but in my profile, the post field shows the number 0.. why?
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3 Engineer 1