eninede wrote: ↑Sat Mar 18, 2023 1:38 am
Hello everyone!
I'm new to the linux, odroid and forum world
and probobly becouse of that I have a problem in changing the state of one single pin value in Thonny (python).
I have install everything like it says in
https://wiki.odroid.com/odroid-xu4/appl ... o/rpi.gpio
The code of a program look like this:
import RPi.GPIO as GPIO
LedPinW = 4
def setup():
GPIO.setup(GPIO.BCM)
GPIO.output(LedPinW, GPIO.HIGH)
setup()
but the effect is a Thonny message:
"ModuleNotFoundError: No module named 'RPi'"
Why should I do to make the program working right?
It's missing the python module RPi.GPIO which exists on several different git repositories with adaptations for ODROIDs.
For example:
https://github.com/jfath/RPi.GPIO-Odroid
Sadly these versions are often very Kernel specific and do not run on all Images/Kernels.
More modern Kernel tend to use gpiod a new way to interact with gpios, where you already have command line tools with the OS itself after installing gpiod package.
Example from my ODROID N2:
Code: Select all
root@odroid-bullseye64:~# gpioinfo
gpiochip0 - 85 lines:
line 0: unnamed unused input active-high
line 1: unnamed unused input active-high
line 2: unnamed unused input active-high
line 3: unnamed unused input active-high
line 4: unnamed unused input active-high
line 5: unnamed unused input active-high
line 6: unnamed unused input active-high
line 7: unnamed unused input active-high
line 8: unnamed unused input active-high
line 9: unnamed unused input active-high
line 10: unnamed unused input active-high
line 11: unnamed unused input active-high
line 12: unnamed unused input active-high
line 13: unnamed unused input active-high
line 14: unnamed unused input active-high
line 15: unnamed "PHY reset" output active-low [used open-drain]
line 16: unnamed unused input active-high
line 17: unnamed unused input active-high
line 18: unnamed unused input active-high
line 19: unnamed unused input active-high
line 20: unnamed unused input active-high
line 21: unnamed "regulator-hub_5v" output active-high [used]
line 22: unnamed "regulator-usb_pwr_en" output active-high [used]
line 23: unnamed unused input active-high
line 24: unnamed "regulator-vcc_5v" output active-high [used open-drain]
line 25: unnamed unused input active-high
line 26: unnamed unused input active-high
line 27: unnamed unused input active-high
line 28: unnamed unused input active-high
line 29: unnamed unused input active-high
line 30: unnamed unused input active-high
line 31: unnamed unused input active-high
line 32: unnamed unused input active-high
line 33: unnamed unused input active-high
line 34: unnamed unused input active-high
line 35: unnamed unused input active-high
line 36: unnamed unused input active-high
line 37: unnamed "reset" output active-low [used]
line 38: unnamed unused input active-high
line 39: unnamed unused input active-high
line 40: unnamed unused input active-high
line 41: unnamed unused input active-high
line 42: unnamed unused input active-high
line 43: unnamed unused input active-high
line 44: unnamed unused input active-high
line 45: unnamed unused input active-high
line 46: unnamed unused input active-high
line 47: unnamed "cd" input active-low [used]
line 48: unnamed unused input active-high
line 49: "PIN_44" unused input active-high
line 50: "PIN_46" unused input active-high
line 51: "PIN_45" unused input active-high
line 52: "PIN_47" unused input active-high
line 53: "PIN_26" unused input active-high
line 54: unnamed unused input active-high
line 55: unnamed unused input active-high
line 56: unnamed unused input active-high
line 57: unnamed unused input active-high
line 58: unnamed unused input active-high
line 59: unnamed unused input active-high
line 60: "PIN_42" unused input active-high
line 61: "PIN_32" unused input active-high
line 62: "PIN_7" unused input active-high
line 63: "PIN_27" unused input active-high
line 64: "PIN_28" unused input active-high
line 65: "PIN_16" unused input active-high
line 66: "PIN_18" unused input active-high
line 67: "PIN_22" unused input active-high
line 68: "PIN_11" unused input active-high
line 69: "PIN_13" unused input active-high
line 70: "PIN_33" unused input active-high
line 71: "PIN_35" unused input active-high
line 72: "PIN_15" "onewire" output active-high [used open-drain]
line 73: "PIN_19" unused input active-high
line 74: "PIN_21" unused input active-high
line 75: "PIN_24" unused input active-high
line 76: "PIN_23" unused input active-high
line 77: "PIN_8" unused input active-high
line 78: "PIN_10" unused input active-high
line 79: "PIN_29" unused input active-high
line 80: "PIN_31" unused input active-high
line 81: "PIN_12" unused input active-high
line 82: "PIN_3" unused input active-high
line 83: "PIN_5" unused input active-high
line 84: "PIN_36" unused input active-high
here you can see info about the different GPIOs and can interact with them as easily as:
Code: Select all
root@odroid-bullseye64:~# gpioset 0 69=1
root@odroid-bullseye64:~# gpioset 0 69=0
Which would switch the GPIO mode automatically to output mode, write the value 1 into the GPIO or write the value 0 to the GPIO.
In this case the first 0 is the number of the gpiochip (gpiochip0) 69 is the line (so physical PIN 13) and =1 or =0 is the value you write to the pin, either high or low.
Attaching a LED to pin 13 would result in turning the LED on and off in this example.
There are other commands available as well:
gpiodetect gpiofind gpioget gpioinfo gpiomon gpioset
But once again, this depends on the Kernel (and Image) you use.
