robertoj

What should I do in my orangepi zero 3, so that the result of "gpioinfo " is "line 229: "PH5...", and just show the usable lines (as shown in https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/about/ ) What I get now is: "line 0: unnamed... (288 lines)" (as shown in https://forum.armbian.com/topic/29202-orange-pi-zero-3/?do=findComment&comment=181015) Is this the way to do it? https://stackoverflow.com/questions/60100907/gpiod-use-labels-in-devicetree

gpio-sysfs is deprecated and gpiod is one of the replacements https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/about/ What would be needed to have my orangepi zero 3 show this? VVV This is NOT what I get. This is what I want to get VVV $ gpioinfo gpiochip0 - 27 lines: line 229: "PH5/I2C3_SDA" input line 228: "PH4/I2C3_SCK" input line 73 "PC9" input line 226 "PH2/UART5_TX" output line 227 "PH3/UART5_RX" input line 70 "PC6" input line 75 "PC11" input line 69 "PC5" input line 72 "PC8" input line 79 "PC15" input line 78 "PC14" input line 231 "PH7,SPI1_MOSI" input line 232 "PH8,SPI1_MISO" input line 71 "PC7" input line 230 "PH6,SPI1_CLK" input line 233 "PH9,SPI1_CS" input line 74 "PC10" input line 234 "PH10/UART6_TX" input line 235 "PH11/UART6_RX" input line 236 "PH12/I2C4_SDA" input line 237 "PH13/I2C4_SCK" input line 238 "PH14/SPI2_MOSI" input line 239 "PH15/SPI2_MISO" input line 240 "PH16/SPI2_CLK" input line 241 "PH17/SPI2_CS" input line 242 "PH18/UART7_TX" input line 243 "PH19/UART7_RX" input

Can you check WiFi, Bluetooth and HDMI?

Ok. I got one output pin to work. 😀 This is how to do it in OrangePi Zero 3, pin 8 PH2: In Bash as root: # addgroup --system gpio # chown root:gpio /dev/gpiochip0 # chmod 660 /dev/gpiochip0 # nano /etc/udev/rules.d/61-gpio-tools.rules {add line SUBSYSTEM=="gpio",KERNEL=="gpiochip*", GROUP="gpio", MODE="0660"} # usermod -a -G gpio myusername # apt install python3-dev # reboot In a new folder for your Python script, as normal user: $ python3 -m venv .venv $ source .venv/bin/activate $ pip install gpiod Create script (example in https://pypi.org/project/gpiod/ with one fix): $ nano blink_pin.py import time import gpiod #needed in example from gpiod.line import Direction, Value #Calculating PH2 "line" number #H=8 #2=2 #line=(8-1)x32+2=226 #also shown in https://github.com/rm-hull/OPi.GPIO/issues/79 LINE = 226 with gpiod.request_lines( "/dev/gpiochip0", consumer="blink-example", config={ LINE: gpiod.LineSettings( direction=Direction.OUTPUT, output_value=Value.ACTIVE ) }, ) as request: while True: request.set_value(LINE, Value.ACTIVE) time.sleep(1) request.set_value(LINE, Value.INACTIVE) time.sleep(1) Run script: $ python3 blink_pin.py When done working with your project: $ deactivate Pin 8 PH2 turns ON and OFF 😄 I haven't tested the other pins yet

That gpiod sounds very promising, and easy to use with https://pypi.org/project/gpiod/ I need to wait until I get back home to work on my opiz3

References for trying tomorrow: https://wiki.radxa.com/Mraa https://wiki.radxa.com/RockpiE/dev/libmraa https://www.okdo.com/project/how-to-install-mraa-library-on-the-rock-4c/ https://www.ics.com/blog/getting-started-mraa-raspberry-pi Has anyone used mraa in rockpi+armbian? Old discussion about alternatives to mraa https://forum.armbian.com/topic/12285-providing-mraa-as-common-gpio-library-as-a-replacement-for-wiringpi/

Thank you Gunjan... I hope i have the skill (or time to develop the skill) to add support for opiz3 In the older thread, I was told that /sys/class/gpio won't work anymore... well, it is very true: https://forum.armbian.com/topic/29202-orange-pi-zero-3/?do=findComment&comment=180975 https://www.thegoodpenguin.co.uk/blog/stop-using-sys-class-gpio-its-deprecated/ So, any methods and libraries that depend on sys/class/gpio, like opi.gpio, JUST WONT WORK

Thank you... I was just making a new thread about this topic... hopefully someone will give me a solution soon

Yesterday, I tried to use the digital IO in my opi zero3, with the Python GPIO package from https://opi-gpio.readthedocs.io/en/latest/ by Richard Hull It depends on having sysfs files in /sys/class/gpio/ My original opi zero has these files and it works, but my opi zero3 doesn’t have these files I learned that /sys/class/gpio is created if the linux kernel is configured with a specific option ON, as suggested in the documentation: https://github.com/rm-hull/OPi.GPIO https://linux-sunxi.org/GPIO Also, a developer has made a change on the opi.GPIO project to support opi zero3 https://github.com/rm-hull/OPi.GPIO/issues/79 I will have time to try this tomorrow... but I want to ask: is anyone using GPIO in its most basic way? As reference: I saw this older thread about zero3's GPIO... https://forum.armbian.com/topic/31493-how-to-enable-i2c3-on-orange-pi-zero-3/ It is using leebobby's "armbian" image, with raspi-config, and wiringpi Using my original opi-zero, I never needed to use armbian-config to enable basic gpio and the python opi.gpio just worked as documented Note: the opi.gpio only claims to support basic gpio, not i2c. Update: these are interesting potential solutions and discussions (but they are all from before there was armbian for opiz3) https://www.reddit.com/r/OrangePI/comments/16vfa4g/orange_pi_zero_3_gpio_python_library/ https://github.com/eutim/OPI.GPIO https://www.reddit.com/r/OrangePI/comments/16ioyri/gpio_python_library_for_orange_pi_zero_3/ https://www.reddit.com/r/OrangePI/comments/18iveo3/how_to_control_gpio_pins_in_android_orange_pi/

I tried the latest rolling release from Feb 4, and I have good wifi performance and 0.0 cpu load when idle I tried to use GPIO Python from https://opi-gpio.readthedocs.io/en/latest/ however, it depends on having files in /sys/class/gpio/… which my original opi zero has, but my opi zero3 doesn’t have. Does GPIO depend on a dtbo or a ko? Or is it an option in kernel config, or within armbian-config?

Thank you!!

Hello. Thank you for making this image. I recently refocused in my orange pi boards and want to try this 👍🏽 i hope I don’t get much trouble with basic GPIO usage

i thought someone had already made it work in the H3 In the H3, the problem is not the accelerated H264 decoding. The problem is MPV not able to display the frames with the GPU... I need time to get back in developer mode and play with Mesa configurations and rebuild.

Baryon, do you mean this is working in H3, outputting through HDMI or NTSC? with window manager? With X? What single board computer did you use? I want to try what you did... did you replace those libraries and run ldconfig? Then, what MPV command did you use? And, was it the Bookworm provided MPV?

Thank you to all the Armbian team for fixing wifi for the orange pi zero. I had to work with 5.x, but now I could upgrade to 6.x finally mc510: i used this to upgrade distribution https://wiki.debian.org/DebianUpgrade (there are 2 apt files) and the login welcome message shows all the versions right, even with the lsb_release -a

Prices should be spelled prizes

Armbian Wallpaper Contest Submission I am submitting my **original artwork** for the Armbian Wallpaper Contest. **Artwork Details:** - **Title:** Lowpoly Tux Unleashing ARM onto Universe - **Description:** used AI for tux structure sketch, then traced in Inkscape, and colorized in Gimp Used this free resource https://www.freeimages.com/photo/cosmos-lighting-2-1151193 I hereby confirm and certify that this artwork is an original piece created solely by me. By submitting this artwork to the Armbian Wallpaper Contest, I agree to release it under the [Creative Commons Zero (CC0) license](https://creativecommons.org/publicdomain/zero/1.0/legalcode) (CC0 1.0).

"w1" refers to the 1-wire protocol... it is just one application of GPIO, but it is not what you need for GPIO I wanted to use GPIO for the first time yesterday in orangepi zero, but was not successful... I will keep trying today.

If you have an amazon account you could get one or a pack of USB-TTL converters... it is what every body uses. It is almost a requirement, for playing with SBCs.

Since I don't like using chmod 777, I returned to using the USB-serial adapter, which does not require the chmod

Strangely, I entered "sudo chmod 777 /dev/ttyS1" and "python3 -m serial.tools.miniterm /dev/ttyS1 230400" worked This is something that other apps using serial need, like ROS

Hello, I have a lidar scanner, which I already made it work with a USB-TTL serial adapter... with a decoding python program... it works great However, I tried to use one of the serial ports in the pins of my orange Pi zero... UART1, in pins PG6,PG7... I have strange behavior When I test the serial port with picocom or screen, I see the flow of characters: picocom -b 230400 /dev/ttyS1 screen /dev/ttyS1 230400 However, my python program fails to read at the first character. With the python's own miniterm, I get the same error Anybody who is using ttyS1 successfully in Python? THANKS!! Post data: I enabled the ttyS1 with the addition of "uart1" after "usbhost3" inside armbianEnv.txt I also changed "console=serial" to "console=ttyS0" I get a few lines of characters, but then serial/serialposix.py exits with the exception

A USB battery bank will turn off the 5V for half a second, every time it is plugged or unplugged from the wall or car adapter. And the linux SBC will reset. There are some SBCs that have an onboard lithium charger, such as the Odroid U3

I have an i96... but now I only had time for my other SBCs. Great to see there was a recent update In this latest debian image, does it have good support of USB hubs?