Hi guys, I just thought you'd like to know that I got serialport npm module cross compiled for the Omega2 following instructions here and here.

I will try get a more easily consumable version (maybe another npm package?) but for now feel free to download a working version of serialport@3.0.0 on the following link:

https://github.com/sdesalas/robotics/raw/master/omega2/node-serialport-v3.0.0.tar.gz

You just need to untar and move the node_modules/serialport and node_modules/.bin folders to node_modules in your project or global npm folder.

Even better:

Here is a fork containing the cross-compiled binaries:

https://github.com/sdesalas/node-serialport-omega2

Since its in github you can install via npm:

$ npm install github:sdesalas/node-serialport-omega2

Cherio.
S

I did oupgrade --latest, from https://docs.onion.io/omega2-docs/first-time-setup-command-line.html, and that seemed to do the trick.

Using b145 now and confirm SD card working. Annoyingly though, the reboot fix means that poweroff is also rebooting.

Check df first to see if it got mounted automatically. Mine was mounted on /tmp for a bit and then it got unmounted by itself.

I then checked /dev directory and found something like mmcblk0p1, then did mount /dev/mmcblk0p1 /mnt/sda1 and was able to peruse through the contents of my SD card in the /mnt/sda1 folder.

If neither of those options work try dig through the contents of dmesg, a fixed SD card should look like this:

[    4.425711] MTK MSDC device init.
[    4.468827] mtk-sd: MediaTek MT6575 MSDC Driver
[    4.477086] sdhci: Secure Digital Host Controller Interface driver
[    4.483459] sdhci: Copyright(c) Pierre Ossman
[    4.491632] sdhci-pltfm: SDHCI platform and OF driver helper
[    4.506441] usbcore: registered new interface driver usb-storage
[    4.523233] init: - preinit -
[    4.836974] mmc0: new high speed SDHC card at address aaaa
[    4.936856] mmcblk0: mmc0:aaaa SL08G 7.40 GiB
[    4.949692]  mmcblk0: p1

and a broken one like this:

[ 542.418508] mmc0: new high speed SDHC card at address 1234
[ 542.424731] mmcblk: probe of mmc0:1234 failed with error -28

@Wolfgang-Brehm Confirmed working on b145 with 8GB SanDisk.

To upgrade use oupgrade --latest.

Then you should see following in dmesg:

[    4.425711] MTK MSDC device init.
[    4.468827] mtk-sd: MediaTek MT6575 MSDC Driver
[    4.477086] sdhci: Secure Digital Host Controller Interface driver
[    4.483459] sdhci: Copyright(c) Pierre Ossman
[    4.491632] sdhci-pltfm: SDHCI platform and OF driver helper
[    4.506441] usbcore: registered new interface driver usb-storage
[    4.523233] init: - preinit -
[    4.836974] mmc0: new high speed SDHC card at address aaaa
[    4.936856] mmcblk0: mmc0:aaaa SL08G 7.40 GiB
[    4.949692]  mmcblk0: p1

Hi guys,

Aparently there is an official guide in the docs for pivot-overlay (v0.1.9 b149 and up).

See link below:

Booting from External Storage
https://docs.onion.io/omega2-docs/boot-from-external-storage.html

I can confirm this works with the SD card in the Omega2+ (using b149). There was an odd error message Configuring block-mount... this file has been obsoleted. please call /sbin/block mount directly but I just ignored it and carried on.

This is what I get now with my 8GB Sandisk:

root@Omega-72FF:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 5.5M      5.5M         0 100% /rom
tmpfs                    61.4M    752.0K     60.7M   1% /tmp
/dev/mmcblk0p1            7.2G     91.9M      6.7G   1% /overlay
overlayfs:/overlay        7.2G     91.9M      6.7G   1% /
tmpfs                   512.0K         0    512.0K   0% /dev

Hi @Jeff-Seese,

Please note that the SerialPort API has changed between versions.

The one on node-serialport-omega2 is version 3. Which is why it might get a bit confusing if you look at the latest docs from the original serialport repo instead of the omega2 fork of the same.

Please refer to the docs on the omega2 fork. They should work as expected.

var SerialPort = require('serialport'); // original fork (v5)
var port = new SerialPort('COM1');

var SerialPort = require('serialport').SerialPort; // omega2 port (at v3)
var port = new SerialPort('COM1'); 

Hey @Ashu-Joshi @chris-stratton, there is a solution for this.

See comment in this link.
@Steven-de-Salas said in Serial port communication using Node.js:

Hi guys, I just thought you'd like to know that I got serialport npm module cross compiled for the Omega2 following instructions here and here.

I will try get a more easily consumable version (maybe another npm package?) but for now feel free to download a working version of serialport@3.0.0 on the following link:

https://github.com/sdesalas/robotics/raw/master/omega2/node-serialport-v3.0.0.tar.gz

You just need to untar and move the node_modules/serialport and node_modules/.bin folders to node_modules in your project or global npm folder.

---

Even better:

Here is a fork containing the cross-compiled binaries:

https://github.com/sdesalas/node-serialport-omega2

Since its in github you can install via npm:

$ npm install github:sdesalas/node-serialport-omega2

Cherio.
S

Hi guys, I just thought you'd like to know that I got serialport npm module cross compiled for the Omega2 following instructions here and here.

I will try get a more easily consumable version (maybe another npm package?) but for now feel free to download a working version of serialport@3.0.0 on the following link:

https://github.com/sdesalas/robotics/raw/master/omega2/node-serialport-v3.0.0.tar.gz

You just need to untar and move the node_modules/serialport and node_modules/.bin folders to node_modules in your project or global npm folder.

Even better:

Here is a fork containing the cross-compiled binaries:

https://github.com/sdesalas/node-serialport-omega2

Since its in github you can install via npm:

$ npm install github:sdesalas/node-serialport-omega2

Cherio.
S

Anyone had any success with this?

OPKG is missing serialport npm module for nodejs and was thinking of trying to build it myself.

Thanks.

Did you try opkg install node-usb?

I tried this one but doesnt seem to get past require('usb'), cant find the files on the filesystem either, npm cant see them and they are not in /usr/bin.

I too would love it if there was an opkg package for npm's serialport, even if its an older version of the same.

I too would love a precompiled version of the serialport npm package delivered via opkg as I dont think npm node-gyp compilation is ever going to work.

This is the way the Arduino Yun supports serial via nodejs (it also uses same chipset and similar openwrt distro).

I noticed opkg has a node-usb package one but it doesnt seem to do anything. Cant find it on the file system, neither as npm global package or under /usr/bin directory, I also cant seem to use it via require('usb').

I too would love a precompiled version of the serialport npm package delivered via opkg as I dont think npm node-gyp compilation is ever going to work.

This is the way the Arduino Yun supports serial via nodejs (it also uses same chipset and similar openwrt distro).

I noticed opkg has a node-usb package one but it doesnt seem to do anything. Cant find it on the file system, neither as npm global package or under /usr/bin directory, I also cant seem to use it via require('usb').

@Brad-Buskey: I used this link to create my new /etc/passwd user, the result is as follows:

smb:x:501:501:samba:/shared:/bin/ash

My understanding is that this is equivalent to:

[user]:[pwd]:[id]:[id]:[desc]:[home]:[shell]

When running passwd smb the [pwd] component seems to get replaced by a hash of the password.

Dont forget you also need to give user full access the the [home] directory. I used chown smb /shared to acomplish this.

You can also verify samba auth locally before moving on to connect via your desktop:

$ opkg install samba36-client
...(package download blah blah)...
$ smbclient -L localhost -U smb
Enter smb's password: ******

    Sharename       Type      Comment
    ---------       ----      -------
    shared          Disk
    IPC$            IPC       IPC Service (Omega)

    Server               Comment
    ---------            -------
    MEDIAHUB             WD TV Live
    OMEGA                Omega

    Workgroup            Master
    ---------            -------
    WORKGROUP            MEDIAHUB

FYI: You can set '*' for the interfaces value, that way it will work for BOTH ethernet and wlan.

I also created a /shared directory and an smb user to manage all the samba files. This is what I have now:

root@Omega-72FF:~# cat /etc/config/samba
config samba
    option 'name'                   'Omega'
    option 'workgroup'              'WORKGROUP'
    option 'description'            'Omega'
    option 'homes'                  '0'
    option 'interface'              '*' # <-- (wlan + ethernet)

config 'sambashare'
    option 'name'           'shared'
    option 'path'           '/shared'
    option 'users'          'smb'
    option 'guest_ok'       'yes'
    option 'create_mask'    '0700'
    option 'dir_mask'       '0700'
    option 'read_only'      'no'

Note that the smb user has to be created both as a system user AND samba user. This is done by editing the /etc/passwd file (add a line), setting the password for the newly created use (passwd smb) and creating the user at samba level with smbpasswd -a smb. Make sure you also do chown smb /shared so that this user owns the relevant directory.

As per @Luciano-S coment above, the reason for going through all this malarchy is because the root user by default is prevented from being a samba user as well (I'm guessing because of the security risk).

You can probably turn this off by commenting the relevant line in /etc/samba/smb.conf.template then setting root as your sambashare user instead.. but I was happier with the config above:

[global]
    netbios name = |NAME|
    display charset = |CHARSET|
    interfaces = |INTERFACES|
    server string = |DESCRIPTION|
    unix charset = |CHARSET|
    workgroup = |WORKGROUP|
    local master = no
    browseable = yes
    deadtime = 30
    domain master = yes
    encrypt passwords = yes
    enable core files = no
    guest ok = yes
#   invalid users = root  # hmmm.. is commenting this out a good idea?
    load printers = no
    map to guest = Bad User
    max protocol = SMB2