This is the area to clarify hardware specification if there's anything unclear from the datasheet. If the specification is software related, please ask in the related software section.

GPIO cannot work on up-board squared

yiyunluoyiyunluo Posts: 1New Member

Hello,
I'm trying to use GPIO pins on up2 to control an LED. I used the following code:
sudo -i
echo 432 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio432/direction
echo 1 > /sys/class/gpio/gpio432/value

The value has been set to 1 correctly, but the LED is not on.
I tried with mraa-gpio too, and with mraa-gpio list shows No pins.

I tried to install the kernel for up-board according to https://wiki.up-community.org/Ubuntu#Install_Ubuntu_kernel_for_UP_from_PPA. But when I type uname -a, it always shows Linux upboard-UP-APL01 4.14.20-041420-generic #201802162247 SMP Fri Feb 16 22:48:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux.

Is there anyone who knows how to solve this problem? Thanks

Greetings,
Yiyun

Tagged:
Sign In or Register to comment.