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Questions tagged [connecting]

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4 votes
1 answer
206 views

What is the best way to retrofit a connection between a circuit board and its case (housing)?

This is a very specific well defined question, imho, but it's also likely to be that I can do anything better. This strikes me as amazingly bad engineering. Hondas and Accuras all have a problem with ...
Evan Carroll's user avatar
1 vote
0 answers
43 views

ESP32-C3-MINI-1-N4: can't establish Serial connection but can flash code

I've recently build my own dev board utilizing the ESP32-C3-MINI-1-N4 module. Everything works pretty well and just as expected, I can control a few onboard LEDs just fine and upload code and ...
EmilEmilchen's user avatar
0 votes
1 answer
57 views

Pinout and details for the ME4-H2 hydrogen sensor from Winsen

I have been trying to understand and use a hydrogen sensor from Winsen (ME4-H2). However, the datasheet is scarce in information about the pinouts and other details. The pins are called C, R, W and an ...
Akash Hegde's user avatar
0 votes
2 answers
107 views

Understanding audio jack connections

I have an audio jack but I have no clue how to connect wires to it. Please help me to understand its connections. I have provided the images of it. I do not know how to connect it, please help. It ...
Preet's user avatar
  • 147
0 votes
1 answer
74 views

Datasheet of camera autofocus driver IC

I have a camera lens with auto focus. I opened it and found a tiny (2x1 mm) IC. A search on Google for "auto focus IC" showed it has 6 pins (GND, Vcc, SDA, SCL, and 2 outputs for the voice ...
Thedark's user avatar
0 votes
1 answer
32 views

Suitable driver for BLDC motor

I have a BLDC motor with Hall connections Hu, Hv, Hw and U, V, W. I am looking at a driver for the BLDC motor, but the driver has hall connections HA, HB and HC. Are Hu, Hv, Hw and HA, HB, and HC the ...
Aparna Vijay's user avatar
0 votes
1 answer
685 views

INA219 to measure battery voltage

I want to measure the voltage of batteries. I am using an INA219 powered by an Arduino MKRWAN 1300. I have connected the INA219 to the MKRWAN as seen in the image below: However, I seem to have a ...
Roda Jhayance Joceli Lacson's user avatar
0 votes
1 answer
280 views

How connect the STlink on NUCLEO f401RE to communicate with STM32F4 discovery?

I have this configuration of MCUs. I need to know how connect the STlink on NUCLEO to discovery because I need the Virtual com PORT.
Cristian DAuria 's user avatar
0 votes
1 answer
164 views

Trying to make a 4100mAh, 47.4Wh battery for handheld PC

Stumbled across this site when searching for some info.. I'm hoping that one of you kind people will be able to help me. I have an Aya Neo Pro handheld gaming PC, and the battery has died. The problem ...
Lee C's user avatar
  • 1
2 votes
1 answer
139 views

BPT intercom contacts [closed]

I live in a condominium. There is a door intercom system (see picture 1). The intercom is made by BPT company (Italy), model E/272 (see diagram in picture 2). Since there is too much noise, I can't ...
NickRucunas's user avatar
0 votes
0 answers
77 views

How do I connect to the strange black contacts on a PC keyboard's PCB?

I want to build a little box with switches, so that I can flip a switch and it will hold down a keyboard key on my PC. My idea is to take the little PCB from an existing keyboard (a Microsoft Wired ...
Greenaum's user avatar
  • 310