Questions tagged [connecting]
6 questions
2
votes
1 answer
BPT intercom contacts
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 hear the buzzer when somebody from outside is…
NickRucunas
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- 2
0
votes
1 answer
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 hard time connecting the batteries to the INA219.…
0
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1 answer
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.
0
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1 answer
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 is that replacement batteries are not readily…
Lee C
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0
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0 answers
Hydraulic cooling fan to box with 4-wire set up
I have an 110 VAC external hydraulic cooling fan I would like to add to my breaker box for a cooling system.
The fan has a green/yellow (ground), brown, blue, and black wiring system. I'm not sure how to set it up without blowing up the motor. Do I…
0
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0 answers
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 600) and figure out the grid locations for keys of…
Greenaum
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