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...
2answers

[Others] Last day order to deliver before CNY

Hello , can you tell me which is the last day possible to order the PCB, to guarantee the deliver before CNY?ThanksMarco
4answers

[Others] Is it proper to wire up a decoupling capacitor

Or should I have the track going above both VCC pads and connecting to them in parallel rather than series?
4answers

[Others] Can I use a DC sine wave to drive a single phase induction motor?

I wanted to try building a driver circuit for a small induction motor, using an ATMega328P (i.e. the micro in the Arduino UNO) to generate a 5 kHz PWM signal which changes duty cycle every period usin...
5answers

[Others] If it's ok multiple NPN 8050 transistors be used in parallel to increase the maximum amp draw?

All I have are a bunch of 8050s and I want to use them as power switches for driving a DC motor. Since the motor will draw more then the maximum amperage rating for an 8050 I was wondering if I could ...
2answers

[Others] Variable inductors are more resistant to mechanical vibration?

It seems that many of the transistor based designs rely on a variable inductor to fine tune all of the resonant circuits in the system, and I am wondering why variable inductors are chosen over variab...
5answers

[Others] How to keep good thermal contact? Electrically isolating a heat sink?

I'm making a motor driver board with 4 x BTS7960B motor drivers. I want to put them quite close together and dissipate the heat through some thermal vias and into a heat sink on the opposite side ...
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