SergioAiello

not important question: between Zero2 and zero3 I would choose Zero3: performances are similar, but Zero3 is newer. Why Armbian decided to not support it? BR, S.

I did not find the build for Orange Pi Zero 3 Vice versa I found the build for Orange Pi Zero2 Both SBCs are equipped with Allwinner H6 CPU (H618 for the board Zero 3 and H616 for the board Zero2). Is the build for Orange Pi Zero2 compatible with Orange Pi Zero 3 as well?

Additionally the cmd gpioRead stops working after ISR setup printf (" main1 - %d\n", digitalRead (2)); wiringPiISR (2, INT_EDGE_BOTH, myInterrupt1) ; printf (" main2 %d\n", digitalRead (2)); output: root@MansaConsMon:/home/lapamo15/GPIO/wiringOP# ./ottobre2023 main1 - 1 main2 - 0 Waiting ... And 'gpioRead' output will not change even if the INPUT toggles between 3.3 and 0V Note: the interrupt function detects correctly the input changes, but the 'digitalRead' output is always LOW Interrupt function triggered by the rising edge. Signal level at input '2' is 3.3V (measured by a tester) and the command 'gpio read 2' output is '0' (which should be '1'). It seems there is a conflict between 'wiringPiISR' and 'digitalRead'.

Hello Andrea, I have the same wiringOP version and also in my case it seems the Orange Pi pulls the input UP by default without considering the SW setup cmd (pullUpDnControl(0, PUD_DOWN);) --- By the way I'm using a OPi ZERO. Is there somebody that can help with a solution or just a workaround? At the moment I've added a pull-down resistor of 1.8kOhm. Therefore the two voltage states are 1.0 and 2.1 (instead of 0 and 3.3). It works but I'm wondering if it is possible to improve. Many thanks!

Thank you, Clear, now. Apologies for the mistake. In case there is no chance to login, is there a recovery procedure? Maybe using another OPi and a SD card reader? Is it possible to access the file system in that way? Thank you,

I mean if i need to launch or open a file owned by root (I write: -> sudo <filename>) then I am asked to insert the root password. Unfortunately I can't modify the file "passwd". I can only open it in "read-only" mode. But also if I write "su" I'm prompted to insert the root password. How can I reset root password? thank you.

Thank you The case is as you properly described. According to my knowledge only the RPi allows to issue the "sudo" cmd without prompting for "root" password. In my case ("Armbian") after "sudo" I have to in the "root" password. Do you agree?

Hi, is the single user login an option with Orange Pi? I need to recover the root password. I'm used to login as a user and I can't figure out the root password anymore. Is it possible to remove the password so to recover setting a new one at next bootstrap? Thank you, Best regards, S. ps: in case it helps, I can load an image to an additional SD card, boot and log as root so to try to modify the former SD connected with a USB reader/port.