Questions tagged [automotive]

Questions about the design of electronics for use in an automotive environment. (Questions about the installation and use of automotive electronics are unlikely to be appropriate for this site.)

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How the Current Flows in a Car?

My BIG question is : why does positive battery cable in a car is directly connected to the starter to crank the engine and does that mean the current actually flows from positive battery post to ...
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2answers
1k views

PCB design for automotive fusebox?

I am currently in the process of designing an automotive (motorsport related) fuse-box as a side project to my studies. I've not had much luck searching for fuse holders (20 position) however while ...
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3answers
241 views

Using very low voltage from dimmer switch to trigger 12 volt supply

I have a new stereo head unit in my car that auto dims when the headlights are on. The head unit does not have a variable dimmer, it is either on or off. I have a dimmer switch in my car that is ...
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3answers
392 views

Car battery capacity in colder countries

The capacity of the battery is affected when the temperature drops, particularly Lead-acid batteries. So how in cold countries this situation is solved. In this PDF about automotive batteries at low ...
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1answer
558 views

Mysterious Noise Issue in Automotive Ignition Coil Application, Arduino

I'm building a circuit to count RPM based on watching the negative pole of the primary coil in an old automotive ignition coil. I had no illusions this would be easy, but here I am stuck even though I ...
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2answers
372 views

Reliability of STM HAL driver For Safety Critical Application

I'm working on a project which must be used in an automotive application and act as a node into the multiplex CAN-BUS network. There are number of I/O that must be actuated and some of them had a ...

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