Door sensor implementation in python

Robotics & Edge Computing Jetson Systems Jetson Nano
1

Hi,

I am trying to implement a very simple door sensor (like the ones in this link https://medium.com/conectric-networks/playing-with-raspberry-pi-door-sensor-fun-ab89ad499964) which is monitored with a python script. I have found some examples for RPi but not for Jetson, so I have used a simple code using Jetson GPIO sampples(GitHub - NVIDIA/jetson-gpio: A Python library that enables the use of Jetson's GPIOs) and I have connected the door sensor to pins 16(output) and 18(input)

However it does not work as output is very unstable and it does not recognizes properly the output. I am using a Jupyter Notebook and the printouts in the input pin do not make sense.

Is there any simple example on how to connect and manage this?

Regards,
Alberto

2

Hi,

I can’t answer this due to no experience on this use case, may other developers to provide suggestions.

3

You may test those two pins at command shell.
GPIO 232 for PIN 16, GPIO15 for PIN 18

# echo 232 > /sys/class/gpio/export
# echo output >  /sys/class/gpio/gpio232/direction
# echo 1 > /sys/class/gpio/gpio232/value
# echo 0 > /sys/class/gpio/gpio232/value

I would recommend that you test voltage up and down first.