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any setting to put opizero h2 in promiscuous mode to record wifi packets?

Hi I try use Nokia 5110 with Orange pi zero. I found this library: https://github.com/rm-hull/luma.lcd and try to run it on my orange pi with this tutorial: http://codelectron.com/interface-nokia-5110-lcd-and-raspberry-pi-python/ so in python shell I add these: >>> from luma.core.interface.serial import spi >>> from luma.core.render import canvas >>> from luma.lcd.device import pcd8544, st7735, uc1701x >>> import OPi.GPIO as GPIO >>> from luma.lcd.aux import backlight but after add this line, I got many error that told me that library is used for Raspberry pi only: >>> serial = spi(port=1, device=0, gpio_DC=18, gpio_RST=16) Traceback (most recent call last): File "/usr/local/lib/python3.6/dist-packages/luma/core/lib.py", line 23, in __rpi_gpio__ import RPi.GPIO as GPIO File "/usr/local/lib/python3.6/dist-packages/RPi/GPIO/__init__.py", line 23, in <module> from RPi._GPIO import * RuntimeError: This module can only be run on a Raspberry Pi! During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python3.6/dist-packages/luma/core/interface/serial.py", line 255, in __init__ bitbang.__init__(self, gpio, transfer_size, DC=gpio_DC, RST=gpio_RST) File "/usr/local/lib/python3.6/dist-packages/luma/core/interface/serial.py", line 148, in __init__ self._gpio = gpio or self.__rpi_gpio__() File "/usr/local/lib/python3.6/dist-packages/luma/core/lib.py", line 30, in __rpi_gpio__ 'GPIO access not available') luma.core.error.UnsupportedPlatform: GPIO access not available Now I confused because in the document they said that we can use it on orange pi zero by armbian! could you guide me to run Nokia 5110 LCD with orange pi zero (I prefer use python).

I wouldn't ask for help here if I could find enough information to solve my problem. My program takes user-space GPIO interrupts as signals. It depends on this feature and GPIO interrupts are not replaceable. Testing code is as follows (on Pin12/PA07/GPIO7) by using SysfsGPIO: echo 7 > /sys/class/gpio/export echo in > /sys/class/gpio/gpio7/direction echo falling > /sys/class/gpio/gpio7/edge Check if it works with command `cat /proc/interrupts`: watch -n3 "cat /proc/interrupts | grep sunxi_pio" After configuration, give GPIO7 a pulse by attaching it to 3V3. This method does works on Orange Pi 0+ H5 running Armbian 5.60. /etc/armbian-release: BOARD=orangepizeroplus BOARD_NAME="Orange Pi Zero Plus" BOARDFAMILY=sun50iw2 VERSION=5.60 LINUXFAMILY=sunxi64 BRANCH=next ARCH=arm64 IMAGE_TYPE=stable BOARD_TYPE=conf INITRD_ARCH=arm64 KERNEL_IMAGE_TYPE=Image Content of /proc/interrupts would be like: CPU0 CPU1 CPU2 CPU3 10 0 0 0 sunxi_pio_edge 7 Edge gpiolib 0 0 0 0 sunxi_pio_edge 38 Edge gpiolib 0 0 0 0 sunxi_pio_edge 76 Edge gpiolib Abviously kernel get that interrupt. However, it doesn't work on Orange Pi 0+ 2 H5 running Armbian 5.60. /etc/armbian-release: BOARD=orangepizeroplus2-h5 BOARD_NAME="Orange Pi Zero Plus 2" BOARDFAMILY=sun50iw2 VERSION=5.60 LINUXFAMILY=sunxi64 BRANCH=next ARCH=arm64 IMAGE_TYPE=stable BOARD_TYPE=conf INITRD_ARCH=arm64 KERNEL_IMAGE_TYPE=Image The content of /proc/interrupts is: CPU0 CPU1 CPU2 CPU3 2080 0 0 0 sunxi_pio_level 7 Level brcmf_obb_intr 0 0 0 0 sunxi_pio_edge 7 Edge gpiolib 0 0 0 0 sunxi_pio_edge 38 Edge gpiolib This time, kernel doesn't catch interrupt and the only difference between OPi 0+ and OPi 0+ 2 is the first line: sunxi_pio_level 7 Level brcmf_obb_intr. It seems brcmf has already occupied GPIO7 with level interrupt. lsmod | grep brcmf: brcmfmac 229376 0 brcmutil 16384 1 brcmfmac cfg80211 303104 1 brcmfmac If I remove mod brcmfmac then the wireless connection will fail, which is not what I want. So my question is: Is GPIO7 occupied by module brcmfmac? If it is, can I change the pin that brcmfmac use to let my program use GPIO7? What role does GPIO7 play in network connection? In OPi 0+ there is no such problem. I need both network and GPIO interrupt features in my program. It's hard to change from GPIO7 to another pin because of hardware design in my project. Think you guys.

Hi Everyone, I'm making a project about video and i want to export video to AV and HDMI without Desktop GUI. (i'm using armbian from https://dl.armbian.com/orangepizero/Ubuntu_xenial_default.7z). I reseached many documents, armbian-build resource, but i don't know how to make it! I have tried play video on Desktop GUI, it work fine! (mplayer, mpv) But without Desktop GUI, is it possible? Thanks!

Hi, I try to play with Armbian Stretch mainline kernel 4.14.y on Orange Pi Zero and need for my idea sf funktion (SPI) and i2c in u-boot terminal. I've build mainline U-Boot but the files in /boot directory from armbian looks so "strange". There is any description how to replace the files or make changes. Thanks for help. P.S. Have a lot of experience with uC programming, less with Linux.

Hi, I'm using several Orange Pi Zero boards. At any given time, when I run "reboot now", I can no longer access the OPI via ssh. I tested the following distributions: Armbian_5.25_Orangepizero_Ubuntu_xenial_default_3.4.113 Armbian_5.59_Orangepizero_Ubuntu_xenial_default_3.4.113 All the programs I installed, which start from boot normally work, but I can not access via SSH. Is there any corruption of ssh files? Thank you for your help

I would use the opi as ir transmitter for AC. Does anybody know if it is possible? Thanks

Hello, Has anyone tried to bring up a SIM7100E based hat on Orange PI Zero over the UART GPIO interface? I have enabled the UART ports in armbianEnv.txt as follows: overlay_prefix=sun8i-h3 overlays=usbhost2 usbhost3 uart1 uart2 dmesg | grep tty shows : [ 0.000379] console [tty1] enabled [ 1.765329] console [ttyS0] disabled [ 1.785581] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 39, base_baud = 1500000) is a U6_16550A [ 1.785700] console [ttyS0] enabled [ 1.810679] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 40, base_baud = 1500000) is a U6_16550A [ 1.835564] 1c28800.serial: ttyS2 at MMIO 0x1c28800 (irq = 41, base_baud = 1500000) is a U6_16550A I have connected the TX/RX pins as in the picture : http://linux-sunxi.org/File:OPi_Zero_UART.jpg to corresponding RX/TX ports on the SIM7100E module. The SIM7100E module I am using is : https://www.aliexpress.com/item/EU-Network-SIM7100E-4G-Module-Development-Board-Antenna-for-Arduino-Raspberry-Pi-Android-Linux-Windows/32864790020.html The module works fine on a standard linux Desktop running Ubuntu and am now trying to bring it up on Orange Pi Zero. Any help is much appreciated. Thank You.

I would like to save the pain of all the newcommers in setting up the hotspot on their OPi ZERO. Please note, that the wifi module on this board is crappy and the available driver is barely working. The AP function is left enabled in the beta builds. You can read about it here: thread about the wifi module I am not a dev or any highly experienced user. I tested this step by step with my Orange Pi Zero 256MB, board rev. 1.1: 1) download the image from dl.armbian.com: Armbian_5.35_Orangepizero_Ubuntu_xenial_default_3.4.113 2) write it to your SD card 3) SSH to your OPi Zero 4) run as root armbian-config 5) navigate to "system" and enable "nightly" builds (or the beta images) and wait 6) navigate to wifi and connect to some other wifi network fist! if you do not connect, the wifi hotspot won't work 7) disconnect from the wifi network 8) navigate to Hotspot and let the armbian-config do all the setup for you. 9) you should have wifi ssid ARMBIAN running. 10) change your ssid and password 11) reboot if your hotspot stops working and connect with the zero to wifi and repeat probably it can wotk with other armbian releases, but I did not test others. Enjoy! and do not ask the devs all over again to help you with the hotspot, they can not help you.

Hello! I have: 1) Orange Pi PC+ with ARMBIAN 5.38 stable Ubuntu 16.04.5 LTS 3.4.113-sun8i 2) Orange Pi Zero with ARMBIAN 5.60 stable Ubuntu 16.04.5 LTS 3.4.113-sun8i 3) Orange Pi PC with Debian 3.4.39 #1 SMP PREEMPT Wed Sep 16 13:39:07 CEST 2015 armv7l On both ARMBIANs I have noticed: every start of arecord sets level on "MIC1 boost AMP gain control" audio setting with constant value 5. I think it uses value of "cap_vol=5" from section [audio0] from script.bin. On Debian it does not. In my case I need very very very low value of "MIC1 boost AMP gain control". Value of "ADC input gain ctrl" is already 0. Any ideas what is responsible: alsa, driver or something else? And how to avoid that? The way to repeat: 1) with amixer see current value of "MIC1 boost AMP gain control" - in my case 5. 2) set any another value: amixer sset "MIC1 boost AMP gain control" 4 3) check new value 4 with amixer 4) start arecord to record anything 5) check value of "MIC1 boost AMP gain control" with amixer: it got 5 again

Hello. I try to put on Zero Armbian Jessie, after rebooting it does not connect via SSH. Tell me where I make a mistake. Thank.

Hi, I have ARMBIAN 5.60 stable Debian GNU/Linux 9 (stretch) 4.14.78-sunx and installed IR support via armbian-config. Followed LIRC setup procedure for old Linux8 (jessie) and nothing works sudo evtest command doesn't show any available devices sudo service lirc start returns Failed to start lirc.service: Unit lirc.service not found. Any advise?

Hi, Installed ARMBIAN 5.60 stable Debian GNU/Linux 9 (stretch) 4.14.70-sunxi and got surprise: aplay: device_list:270: no soundcards found... Tried to fix with armbian-config -> System -> Hardware -> but it shows empty fields or blinks and returns to main System menu

Hi, I am trying to use Orange Pi Zero. When I connect TTL debug port eveything ok. I can connect Wi-Fi from TTL command prompt. I can make update, download application but I cannot connect with SSH to device over Wi-Fi. But when I bring Orange Pi near to Wi-Fi modem(about 1m) I can connect ssh. I cannot find any solution about this problem. When I use wavemon to check Wi-Fi signal strength, I saw this values; signal level : -40 dbm, link quality: 91/100 If someone help I will be very happy, because I cannot find solution for days. Thanks a lot

Hello, on older Orange Pi zero I used nmcli for creating access point or connecting as a client to wifi. Now I am running Linux orangepizeroplus2 3.4.113-sun8i #4 SMP PREEMPT Wed Nov 22 13:45:28 CET 2017 armv7l on Orange Pi Zero plus2 h3 but I am not able to create access point with this (it does not work as on older OpiZero, I am using the same commands): nmcli c add type wifi ifname wlan0 con-name connection-name autoconnect no ssid hotspotssid nmcli connection modify connection-name 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared nmcli connection modify connection-name wifi-sec.key-mgmt wpa-psk nmcli connection modify connection-name +ipv4.addresses 192.168.2.1/24 nmcli connection modify connection-name wifi-sec.psk "lepassword" nmcli connection up connection-name It writes me that "Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)" but I am not able to broadcast access point from other devices (android, pc, etc.). nmcli d shows: DEVICE TYPE STATE CONNECTION wlan0 wifi connected connection-name What am I doing wrong please? P.S. when I want to connect to home wifi network as a client with "sudo nmcli device wifi connect myssid password pass" it works.

I've set up my new OPi Zero as a wireless AP running the latest Armbian build for the OPi0. It's working mostly great. My one problem I'm having is that my speeds seem to be throttled to 5-6Mbps. I connect wirelessly from my phone and run a speed test and get 5-6Mbps. If I connect directly to my router, I get 30Mbps. I have a Rpi3 set up about the same as the OPi0, and when I connect it up I get the full 30. Each time I've tested with the OPi and RPi, my phone is the only device connected. So, I've poked around online and I can't seem to figure out if it's a hardware limitation or if it's a software/driver/setting limitation. Also, if it's the latter, how/where to find the problem in my configuration. Has anyone else gotten better speeds out of their OPi0, if so, what were they? Does anyone have any recommendations for where to look to configuration changes? This is my current HostAPD configuration: # This is the name of the WiFi interface we configured above interface=wlan0 # Use the nl80211 driver with the brcmfmac driver driver=nl80211 # This is the name of the network ssid=babyRoadTrip # Use the 2.4GHz band hw_mode=g # Use channel 6 channel=6 # Enable 802.11n ieee80211n=1 # Enable WMM wmm_enabled=1 # Enable 40MHz channels with 20ns guard interval ht_capab=[HT40] # Not sure if OPi supports these: # [sHORT-GI-20][DSSS_CCK-40] # Accept all MAC addresses macaddr_acl=0 # Use WPA authentication auth_algs=3 # Require clients to know the network name ignore_broadcast_ssid=0 # Use WPA2 wpa=2 # Use a pre-shared key wpa_key_mgmt=WPA-PSK # The network passphrase wpa_passphrase=roadtrip # Use AES, instead of TKIP rsn_pairwise=CCMP

So I have been struggling with my new Orange Pi Zero the last couple of days, I tried everything but was unable to get it working. I followed all debugging steps I could find through google and through this form so i am at the end of the rode. I have tried 2 different SD cards, on which I ran h2testw 1.4 with the following result: Used 2 different power supplies, one of which is rated at 3A 5V and I use for my raspberry pi, so I know for certain this cant be the problems. I have used the following Image without problems: "Armbian_5.25_Orangepizero_Ubuntu_xenial_default_3.4.113.img" But any new image I try gives me problems, I have tried so far: Armbian_5.59_Orangepizero_Ubuntu_bionic_next_4.14.65.img Armbian_5.59_Orangepizero_Debian_stretch_next_4.14.65.img Armbian_5.59_Orangepizero_Ubuntu_xenial_default_3.4.113.img All burned and verified with Ether v1.4.5 without problem, but I was unable to get an IP assigned by my Router (On any of those builds above) and thus unable to login though ssh. So I ordered the following USB to TLL module from amazon but was unable to get it working (On both Windows/Ubuntu): Anpro 2 x CP2102 USB to TTL Converter This is how I wired it (According to the howto's I found in other threads: TXD -> RX, RXD -> TX, GND -> GND (As can be seen in the photos below) https://imgur.com/a/9fI10At and after that used the following command as root: screen /dev/ttyUSB0 115200, which gave me no output. I also tried it on PUTTY but also no output. If i missed any debug steps please let me know because I am out of idea's.

Hi , I am finding trouble using orange pi gpios, here my approach I am trying to scan 4x4 kepad using gpio how am I writing 0 to a particular gpio pin? step 1 : sunxi_gpio_set_cfgpin(pin, SUNXI_GPIO_OUTPUT); step 2: sunxi_gpio_pullup(pin ,SUNXI_PULL_DOWN); I am not sure whether I am correct here. I am not sure if I have to use UP or DOWN or NONE here in pull up call,but I tried UP and DOWN so for. step 3: sunxi_gpio_output(pin,val); here I am using val = 0 or 1 making pin low and high depending on my requrement. in my attempts I get vague results as output. Please let me know if I am missing anything in my approach. to scan a particular colum I am making one column high(=1) and rest three columns to low (=0) at a time in loop. but I am unable to do it ,because though I write 0 to rest of the three , some of them still stay in high, because of this I am unable to get proper key scanned. Plese suggest how to resolve this. and I would also like to know , what is driver for gpio access ? is it linux-sunxi/drivers/gpio/gpio-sunxi.c ? Can I make it loadable module ?, if yes how to remove this module ,I mean what is the module name for this driver module. I want to modify the module according to my need,because ,I am getting unstable results while accessing gpio. Some gpios don't work as expected with gpio_lib.c . Has anyone faced samilar issue? am I the only one here?

Hey there. I used to run an Octoprint server on my Orange Pi Zero H2+ installed over armbian, which got swapped with a raspberry pi for unimportant reasons. I wanted to switch back, but for all of the armbian builds listed here for Orange Pi Zero, I am just getting a green light on the board and some blinking of the orange indicator only from the Ethernet Jack. Is this expected? This is happening with multiple SD-cards an two Orange Pi Zeros. All of the OS images from http://www.orangepi.org/ seem to work just fine, as well as an old "debian_server_for_orangepizero_v0_9_2.img" I found, so I'm going that route for now. But I can't image this is expected behavior.

Hey Everyone , I AM completely new using armbian distribution it's interesting but I do have some question : 1- In Armbian-config > network > wlan > Bt Support (what does that mean ? I can transmit Bluetooth signals over 2.4ghz wifi ?) or in this case I should purchase external USB dongle ? 2- First I tried to check the soundcard and the micro I can use aplay to play wav songs . but for both aplay -l and arecord -l it shows up **** List of PLAYBACK Hardware Devices **** card 0: Codec [H3 Audio Codec], device 0: CDC PCM Codec-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 **** List of CAPTURE Hardware Devices **** card 0: Codec [H3 Audio Codec], device 0: CDC PCM Codec-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 I cannot record sounds but I can play .wav files . Best Regards,

I think 16 seconds is the max. value of the watchdog timeout of H2/H3, However, I cannot set it to 16 seconds. When watchdog-timeout = 16 in /etc/watchdog.conf, the timeout is 11 seconds : /etc/watchdog.conf max-load-1 = 24 watchdog-device = /dev/watchdog realtime = yes priority = 1 watchdog-timeout = 16 interval = 3 root@orangepizero:~# systemctl status watchdog.service ● watchdog.service - watchdog daemon Loaded: loaded (/lib/systemd/system/watchdog.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2018-01-29 11:10:27 HKT; 3min 31s ago Process: 851 ExecStart=/bin/sh -c [ $run_watchdog != 1 ] || exec /usr/sbin/watchdog $watchdog_options (code=exited, status=0/SUCCESS) Process: 835 ExecStartPre=/bin/sh -c [ -z "${watchdog_module}" ] || [ "${watchdog_module}" = "none" ] || /sbin/modprobe $watchdog_module (code=exited, status=0/SUCCESS) Main PID: 855 (watchdog) CGroup: /system.slice/watchdog.service └─855 /usr/sbin/watchdog Jan 29 11:10:27 orangepizero watchdog[855]: int=3s realtime=yes sync=no soft=no mla=24 mem=0 Jan 29 11:10:27 orangepizero watchdog[855]: ping: no machine to check Jan 29 11:10:27 orangepizero watchdog[855]: file: no file to check Jan 29 11:10:27 orangepizero systemd[1]: Started watchdog daemon. Jan 29 11:10:27 orangepizero watchdog[855]: pidfile: no server process to check Jan 29 11:10:27 orangepizero watchdog[855]: interface: no interface to check Jan 29 11:10:27 orangepizero watchdog[855]: temperature: no sensors to check Jan 29 11:10:27 orangepizero watchdog[855]: test=none(0) repair=none(0) alive=/dev/watchdog heartbeat=none to=root no_act=no force=no Jan 29 11:10:27 orangepizero watchdog[855]: watchdog now set to 11 seconds Jan 29 11:10:27 orangepizero watchdog[855]: hardware watchdog identity: sunxi_wdt root@orangepizero:~# When watchdog-timeout = 7 in /etc/watchdog.conf, the timeout becomes 6 seconds : /etc/watchdog.conf max-load-1 = 24 watchdog-device = /dev/watchdog realtime = yes priority = 1 watchdog-timeout = 7 interval = 3 root@orangepizero:~# systemctl status watchdog.service ● watchdog.service - watchdog daemon Loaded: loaded (/lib/systemd/system/watchdog.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2018-01-29 11:16:49 HKT; 1min 12s ago Process: 846 ExecStart=/bin/sh -c [ $run_watchdog != 1 ] || exec /usr/sbin/watchdog $watchdog_options (code=exited, status=0/SUCCESS) Process: 823 ExecStartPre=/bin/sh -c [ -z "${watchdog_module}" ] || [ "${watchdog_module}" = "none" ] || /sbin/modprobe $watchdog_module (code=exited, status=0/SUCCESS) Main PID: 849 (watchdog) CGroup: /system.slice/watchdog.service └─849 /usr/sbin/watchdog Jan 29 11:16:49 orangepizero watchdog[849]: int=3s realtime=yes sync=no soft=no mla=24 mem=0 Jan 29 11:16:49 orangepizero watchdog[849]: ping: no machine to check Jan 29 11:16:49 orangepizero watchdog[849]: file: no file to check Jan 29 11:16:49 orangepizero systemd[1]: Started watchdog daemon. Jan 29 11:16:49 orangepizero watchdog[849]: pidfile: no server process to check Jan 29 11:16:49 orangepizero watchdog[849]: interface: no interface to check Jan 29 11:16:49 orangepizero watchdog[849]: temperature: no sensors to check Jan 29 11:16:49 orangepizero watchdog[849]: test=none(0) repair=none(0) alive=/dev/watchdog heartbeat=none to=root no_act=no force=no Jan 29 11:16:49 orangepizero watchdog[849]: watchdog now set to 6 seconds Jan 29 11:16:49 orangepizero watchdog[849]: hardware watchdog identity: sunxi_wdt root@orangepizero:~# How can I set the watchdog timeout to 16 seconds ? Thanks.

Hello, I use armbian latest version on a Orange Pi Zero (256Mb) to send data from usb to network. I use Ser2net for this to stream data from a rflink device. To test I use a Metrix bench power supply, so i think power is ok. If I reboot the device with usb plugged the boot fail, so i have to boot without usb plugged and then plug usb and restart ser2net daemon to make it work. I think boot is searching for usb device, is it possible to disable this ? Next the board crash every 2 or 3 days, network stop responding and soc heatsink goes hot. I restart the device and it's good for 2 or 3 days, and crash... If it help armbianmonitor -u gives : http://ix.io/1nxB If anyone has an idea ?

Hello, I love armbian and I know the gpio is working on the directory /sys/class/gpio/gpio(number) but I really need to use armbian + the gpio module gpio-sunxi modprobe gpio-sunxi ls /sys/class/gpio_sw/ normal_led PA10 PA13 PA18 PA20 PA6 PA9 PC2 PC7 PG7 PL10 PA0 PA11 PA14 PA19 PA21 PA7 PC0 PC3 PD14 PG8 standby_led PA1 PA12 PA15 PA2 PA3 PA8 PC1 PC4 PG6 PG9 echo 1 > /sys/class/gpio_sw/standby_led/data echo 0 > /sys/class/gpio_sw/standby_led/data is it possible to active this module with kernel 3 or 4, if yes where is possible to enable it ? in the kernel config ?

I bought an OPi Zero, the extension board, a 1/8-to-rca audio/video cable to plug into the AV jack of the extension board, and a 16 GB SDHC card. Loaded Armbian Stretch onto it, plugged in ethernet without any of the AV stuff just to start. The Pi doesn't even show up on my router settings so I cannot access it via Putty or any other SSH program. I turn it off, attach the extension board and av cable, and plug it into the TV in the hopes that I can start working on something with a USB keyboard...nothing shows up on the TV. I'm hoping that's a software issue and not an issue with the actual extension board I bought. I know for a fact it's loading Armbian because I can actually access it via USB through Arduino IDE, I just can't access it with anything else, and I can't do anything more in the Arduino IDE than execute simple commands, I can't edit a file in nano or vim or do much of anything else with it. Maybe I can use "echo -e" to write some important config files but I don't know what they would even be and I don't know why it just isn't working in the first place. I'm trying to perform the same steps I see in Youtube videos about the board and I'm not even getting past being able to control it remotely.

Hi All! I have RT kernel on my OrangePi Zero now. Linux orangepizero 4.14.8-rt9-sunxi #1 SMP PREEMPT RT Sat Jan 6 14:36:31 CET 2018 armv7l armv7l armv7l GNU/Linux Guru, please, HELP me to reconfigure it to using MIDI + Pure Data!!! ALSA is fully installed. But there's a problem: root@orangepizero:~# aconnect -i ALSA lib seq_hw.c:466:(snd_seq_hw_open) open /dev/snd/seq failed: No such file or directory can't open sequencer