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I have a scenario in which i have to take readings from a DHT11 Temperatute & Humidity sensor and publish it to a topic (I am using python so suggestions keeping python in mind would be helpful). The problem is that i need to do sudo to assess the GPIO but again rosrun is not found when in sudo. What should i do ?
Please try to use the search next time (or Google: $searchterms site:answers.ros.org fi), this has been asked (and answered) many times before. See Raspberry Pi 2, ROS and GPIO access for a recent one.
I would suggest updating your raspberry Pi distro (Jessie) https://www.raspberrypi.org/blog/raspbian-jessie-is-here/. The latest version does not require SUDO access to control the GPIO ports
Mark
Quote
"Python users used to have to launch Python with sudo in order to allow access to the GPIO lines – Python can now access GPIOs as a standard user."
Shouldn't do - what happens if you just run a basic python script to control the IO without ROS?
Drop your basic script here and I'll have a look later see if I can replicate
Asked: 2016-03-18 02:22:58 -0500
Seen: 597 times
Last updated: Mar 18 '16
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