Powering external devices with GPIO

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

I am attempting to use the GPIO pins on my AGX orin to control some relays which will provide strobe lighting for my cameras, but I am unable to get sufficient current out of any of the pins for that to work. dredging through the forums I seem to be finding a maximum current of 1mA on the GPIO pins, and experimentally the max appears to be about 2mA. Is there any way to get more current out of the GPIO, or will I need to use an intermediary device with external power to control these relays?

If I do need to use an external device, what options do I have for a module which allows me to convert the signal from each of the GPIO into a signal that I can drive devices with?

3

Sorry for the late response, have you managed to get issue resolved or still need the support? Thanks

4

No, I have not yet resolved the issue. As a workaround I have used an arduino which reads the output pins on the jetson and translates them into a usable control signal when detected, but no-one has yet presented me with an official solution to make the gpios output sufficient current to be used as a control signal.

6

Hi, the output current is up to 2mA. If that can not fit your request, please try other method like external switch devices.

7

Can you please direct me to some switching modules that will run on <2mA current? Because they seem very elusive.

8

We have no such recommendation.

9

How do other people manage to use the IO headers on these devices? The typical power requirements for just about any switching module is >5mA…

11

GPIO pins are for control function not for drive. In general, for digtial control signal, 2mA is enough.

13

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