From: Jeff Chinni < jeff@sigma-usa.com > Sent: Thursday, May 21, 2020 11:02 AM To: ‘Rick Curcio’ < Rick@sigma-usa.com > Subject: Edit and send back Hello We are using the Jetson Nano and we are having some very unstable issues What we are using the board for is to tie in 4 photo eyes. We have des…

hello jeff1, may I know had you configure pinmux spreadsheet to set pin-7 and pin-33 as GPIO types. there’s Jetson Nano Developer Kit 40-Pin Expansion Header Configuration for your reference. thanks

hello jeff1, [image] jeff1: What we are using the board for is to tie in 4 photo eyes. could you please provide more information about “photo eyes”? [image] jeff1: Nano Sigma Pin 1 3.3 pin 1 Pin 39 GND Pin 39 Pin 29 GPIO A Pin 12 Pin 7 GPIO B Pin 38 Pin 33 GPIO C Pin 40 Pin 32 GPI…

Jerry we have shelved the testing with thew photo eyes but here is a link to what we are using. https://www.sick.com/us/en/photoelectric-sensors/photoelectric-sensors/gr18-inox/grtb18s-p2412v/p/p521574 I have put together a PLC that has 4 solid state relays on it and the PLC goes 4 seconds then th…

We were asked if we could bread board something that utilize only pull up resistors ( 1.5K ) to eliminate our custom board. So we removed our board and the photo eyes ( Sick ) and built a bread board driven by a PLC with photo relay to pull the pull up resistors to ground. The results are very much …

xxhttps://www.adrive.com/public/96fnMg/IMG_0100.mov Take out the XX in the front and paste into a browser to see the video.

hello jeff1, may I know what’s the power supply of Nano, you may refer to below for recommendations, thanks [image] Power supply considerations for Jetson Nano Developer Kit Jetson Nano Out of the box, the Jetson Nano Developer Kit is configured to accept power via the …

Jerry we are using a Mean well IRM-30-5ST https://www.arrow.com/en/products/irm-30-5st/mean-well-enterprises

GPIO unstable Issues

Robotics & Edge Computing Jetson Systems Jetson Nano

JerryChang June 1, 2020, 2:15pm 9

hello jeff1,

may I know what’s the power supply of Nano, you may refer to below for recommendations,
thanks

Topic		Replies	Views
Jetson Nano GPIO example problem Jetson Nano gpio	30	22932	September 23, 2021
Jetson Nano GPIO pins floating during reset of an external MCU Jetson Nano gpio	3	141	June 17, 2025
Jitter on GPIO Jetson Nano gpio	3	611	July 7, 2023
GPIOs not driving fully high or low Jetson Nano gpio	13	215	May 28, 2026
Powering Jetson Nano Through GPIO (J41) Jetson Nano	5	4536	January 15, 2020
Jetson Nano GPIO goes high, but not low Jetson Nano gpio	9	4510	June 25, 2021
GPIO Problems Jetson Nano	11	2223	December 11, 2019
Jetson Nano Developer Kit - GPIO Not Responsive (Voltage and Signal) Jetson Nano gpio	7	1584	August 28, 2020
Jetson Nano doesn't stay on when powered by GPIO pins Jetson Nano gpio , power	2	539	June 26, 2023
Jetson nano 2gb not boot when power supply on GPIO Jetson Nano gpio , nano2gb	5	1050	December 31, 2020

GPIO unstable Issues

Related topics