Jetson 3.3V GPIO to control bigger voltage circuit via Relays

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hello, Nvidia devs,

I want to control a circuit with jetson.GPIO via Relays or something, the power supply is a battery of a car, so to be clear, there is a circuit that has 12V and powerfull ampere that I do not know the exact ampere, however, Unfortunately, I am not an electrician and know almost nothing about electricity.

How can I control this circuit with jetson’s GPIO? I have set the software that has the ability to set the GPIO high, my question is about hardware and circuits.

I could not a lot google about that as I do not know the correct keywords, so any google searching advice is also welcomed.

I am waiting for your response.

Have a good day.

2

Hi, something like this: https://www.amazon.com/Splitter-Te-Rich-Cigarette-Lighter-Extender/dp/B07919SSGH?ref_=fsclp_pl_dp_5

3

Hello Trumany, Thank you for the answer.

However I think I can not represent my problem briefly, so actually my purpose is to control 12V DC circuit with Nano’s 3.3V GPIO, with a little talking with my university friends, I realize that I have to use a Regulator to control 3.3V to 5V Relay, however, I do not know exactly how to do.

I will support this question with new pieces of information for other developers who want to help, also if you have new ideas please help me too,

4

Got it. If the IO voltage of Relay is 5V, you will need to convert Jetson GPIO output (3.3V) to 5V with a level shift bridge.

5

Thank you Trumany, its what I want to learn.