Making Omega2 talks with SAMD21 (Arduino Zero)

[György Farkas]

@Suman-kumar-Jha I think the title of your post is fairly misleading.

Making Omega2 talks with SAMD21 (Arduino Zero)
I had gone through arduino Omega dock and how to setup that
... to do same with SAMD21 MCU
... ... to make Arduino Bridge library working

So - in truth - you want that a SAMD21 MCU (ie. an Arduino Zero) "talks" (can communicate) with a web server.

I think now you can understand my problem statement

Not entirely. Now you only told me another small part of your project.

Hope this helps:
Arduino yun bridge Tutorial
Enable Arduino Yun bridge on Linkit 7688 Duo

[Suman kumar Jha]

@György-Farkas said in Making Omega2 talks with SAMD21 (Arduino Zero):

Arduino yun bridge Tutorial
Enable Arduino Yun bridge on Linkit 7688 Duo

I have omega2 and tried your suggestion. I got this error. I guess yunbridge is not installed.

root@Omega-CF2D:~# uci set yunbridge.config.disabled='0'
uci: Entry not found
root@Omega-CF2D:~#

What can be the reason for above?

Is Omega2 comes with light version of Omega OS. I saw lot of tutorial of omega2 but my omegsa2 OS console seems different. Only 3 apps preinstalled.

There is no setting option on console?

[György Farkas]

@Suman-kumar-Jha
Probably you have got an Omega2+.
What firmware version are you using?
Do you have some Onion Dock?

[Suman kumar Jha]

I think i have omega2 itself.

Are you asking this

I am having arduino dock.

[György Farkas]

@Suman-kumar-Jha
No, I'm asking your Omega2's firmware version,.
Useful commands: oupgrade -v or onion os version .
For example my firmvare version is: v0.3.2 b226

root@Omega-5BE1:~# oupgrade -v
> Device Firmware Version: 0.3.2 b226

root@Omega-5BE1:~# onion os version
=== Version Info ===
Omega firmware: v0.3.2 b226
onion-os - 1.0.6-1

[Suman kumar Jha]

Yes i got it.

=== Version Info ===
Omega firmware: v0.3.2 b226
onion-os - 1.0.6-1
root@Omega-CF2D:~#

[Suman kumar Jha]

Mine is also same

[György Farkas]

@Suman-kumar-Jha
Please enable / uncomment the fifth (5th) line in the '/etc/opkg/distfeeds.conf' file.
Please run these commands:
opkg update
opkg install python-light
opkg install yunbridge

uci set yunbridge.config.disabled='0'
uci commit yunbridge

reboot

# Omega2+  FW v0.3.2 b226

root@Omega-5BE1:/# cat /etc/opkg/distfeeds.conf
#src/gz openwrt_core http://downloads.openwrt.org/releases/18.06-SNAPSHOT/targets/ramips/mt76x8/packages
#src/gz openwrt_base http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/base
#src/gz openwrt_luci http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/luci
#src/gz openwrt_onion http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/onion
src/gz openwrt_packages http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/packages
#src/gz openwrt_routing http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/routing
#src/gz openwrt_telephony http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/telephony
src/gz omega2_core http://repo.onioniot.com/omega2/packages/core
src/gz omega2_base http://repo.onioniot.com/omega2/packages/base
src/gz omega2_packages http://repo.onioniot.com/omega2/packages/packages
src/gz omega2_routing http://repo.onioniot.com/omega2/packages/routing
src/gz omega2_onion http://repo.onioniot.com/omega2/packages/onion

root@Omega-5BE1:/# opkg update

root@Omega-5BE1:/# opkg install python-light
Installing python-light (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-light_2.7.15-4_mipsel_24kc.ipk
Installing python-base (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-base_2.7.15-4_mipsel_24kc.ipk
Installing libffi (3.2.1-3) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/libffi_3.2.1-3_mipsel_24kc.ipk
Configuring python-base.
Configuring libffi.
Configuring python-light.

root@Omega-5BE1:/# opkg install yunbridge
Installing yunbridge (160-f2042052115e71ad2c91f77e78d21db8275fcdd6) to root...
Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/packages/yunbridge_160-f2042052115e71ad2c91f77e78d21db8275fcdd6_mipsel_24kc.ipk
Installing python-ctypes (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-ctypes_2.7.15-4_mipsel_24kc.ipk
Installing python-pydoc (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-pydoc_2.7.15-4_mipsel_24kc.ipk
Installing python-multiprocessing (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-multiprocessing_2.7.15-4_mipsel_24kc.ipk
Installing python-logging (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-logging_2.7.15-4_mipsel_24kc.ipk
Installing python-codecs (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-codecs_2.7.15-4_mipsel_24kc.ipk
Installing libsqlite3 (3260000-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/libsqlite3_3260000-4_mipsel_24kc.ipk
Installing python-sqlite3 (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-sqlite3_2.7.15-4_mipsel_24kc.ipk
Installing libgdbm (1.11-1) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/libgdbm_1.11-1_mipsel_24kc.ipk
Installing python-gdbm (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-gdbm_2.7.15-4_mipsel_24kc.ipk
Installing python-email (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-email_2.7.15-4_mipsel_24kc.ipk
Installing python-distutils (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-distutils_2.7.15-4_mipsel_24kc.ipk
Installing python-openssl (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-openssl_2.7.15-4_mipsel_24kc.ipk
Installing python-xml (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-xml_2.7.15-4_mipsel_24kc.ipk
Installing python-compiler (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-compiler_2.7.15-4_mipsel_24kc.ipk
Installing libxml2 (2.9.9-1) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/libxml2_2.9.9-1_mipsel_24kc.ipk
Installing libdb47 (4.7.25.4.NC-5) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/libdb47_4.7.25.4.NC-5_mipsel_24kc.ipk
Installing python-db (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-db_2.7.15-4_mipsel_24kc.ipk
Installing python-decimal (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-decimal_2.7.15-4_mipsel_24kc.ipk
Installing python-unittest (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-unittest_2.7.15-4_mipsel_24kc.ipk
Installing python-ncurses (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python-ncurses_2.7.15-4_mipsel_24kc.ipk
Installing python (2.7.15-4) to root...
Downloading http://repo.onioniot.com/omega2/packages/packages/python_2.7.15-4_mipsel_24kc.ipk
Configuring python-codecs.
Configuring libxml2.
Configuring libdb47.
Configuring python-db.
Configuring python-decimal.
Configuring python-distutils.
Configuring python-pydoc.
Configuring python-ctypes.
Configuring python-multiprocessing.
Configuring python-logging.
Configuring libsqlite3.
Configuring python-sqlite3.
Configuring libgdbm.
Configuring python-gdbm.
Configuring python-email.
Configuring python-openssl.
Configuring python-xml.
Configuring python-compiler.
Configuring python-unittest.
Configuring python-ncurses.
Configuring python.
Configuring yunbridge.

root@Omega-5BE1:/# uci set yunbridge.config.disabled='0'
root@Omega-5BE1:/# uci commit yunbridge

root@Omega-5BE1:/# uci show yunbridge
yunbridge.config=bridge
yunbridge.config.socket_timeout='5'
yunbridge.config.secure_rest_api='false'
yunbridge.config.disabled='0'

root@Omega-5BE1:/# reboot

Good luck!

[Suman kumar Jha]

Thanks, something better now.
In the processes of doing, i found my omega2 not responding properly.
so i followed this "https://docs.onion.io/omega2-docs/manual-firmware-installation.html"
and flashed omega2 with b227 firmware.

After doing all the steps successfully, and booting back i installed python and yunbridge as you described all good done.

After that i found new small problem. My laptop and omega2 is on same wifi network, but "omega-CF2D.local" not working which was previously working.

and also on arduino i can't see the omega2 IP under IDE port option. Which was coming earlier.

what can be the problem, i am not able to test yunbridge.

[György Farkas]

@Suman-kumar-Jha If I understand well now you have a new (a pre) project - you want to try your original project using an "Arduino UNO" (ie. an Arduino Dock R2) instead of a Zero and an Omega2 instead of an Omega2+.

something better now

What did you do previously? Did you change some settings? What was good and what was wrong?

---

You thought a manual firmware upgrade to b227 helps but you have new problems.

i am not able to test yunbridge

You should make a clean system (Factory Restore) with a long OMEGA_RESET button press or with these command:
firstboot -y
reboot
and repeat the Initial Setup process again.

If your system will be OK (hostname, Omega-CF2D.local, IP address, Arduino IDE settings, etc.) then install python and yunbridge.
(Formerly I supposed that python-light is enough but I was wrong.)

Before you enable yunbridge with uci set yunbridge.config.disabled='0' you should look through each related file.
I thought it's an obvious step because the Linkit Smart 7688 is slightly different from Omega2+ and the Linkit Smart 7688 Duo (or the Arduino Yún) differs from the Arduino Dock R2 & Omega2+ combo.
Please let us know what settings should be modify according to you.

[Suman kumar Jha]

Sorry my mistake, let me clear.
My project is on omega2+ and SAMD21 only, but as my local distributor was not having stock Omega2+ so i purchased Omega2 only. I guess apart from memory size there no other difference between Omega2 and Omega2+. Right ?

Till now i tried your suggestion on Omega2 itself.

And regarding arduino, as you said you don't have Arduino Zero. So i messaged you that if you can help me to bring yunbridge working on arduino uno then i will try to find some solution by myself for Arduino zero.

Is my problem statement clear now?

I have one question. I had sent you before my omega2 console photo. why its seems a lot different from the tutorial which i followed. There is no features, "settings" option is not there. Am i running right firmware and hardware ? Please let me know.

You should make a clean system (Factory Restore) with a long OMEGA_RESET button press or with these command:
firstboot -y
reboot
and repeat the Initial Setup process again.
Thanks, but I had tried this before putting message to you

Before you enable yunbridge with uci set yunbridge.config.disabled='0' you should look through each related file. Which files plz can you explain

I thought it's an obvious step because the Linkit Smart 7688 is slightly different from Omega2+ and the Linkit Smart 7688 Duo (or the Arduino yun) differs from the Arduino Dock R2 & Omega2+ combo.

Can you explain what is the difference, in hardware perspective i found same (Omega2+ and Linkit Smart 7688).

[Suman kumar Jha]

Hi György Farkas
Please response

[Suman kumar Jha]

Hi
Are you there, I am waiting for the response.
Kindly response anyone

[György Farkas]

@Suman-kumar-Jha I've lost the thread.

You installed the 'yunbridge' package and wrote:
Thanks, something better now.

I questioned:
What did you do previously? Did you change some settings? What was good and what was wrong?

No answer.

You upgraded to b227 manually and wrote:
After that i found new small problem.

I wrote
You should make a clean system (Factory Restore) ... and repeat the Initial Setup process again.
...
If your system will be OK...

You wrote:
Thanks, but I had tried this before putting message to you

Does it mean that your test arrangement (the whole HW, each SW and Omega2's firmware,) worked well before you installed and enabled 'yunbridge' again?

[Suman kumar Jha]

*After doing all the steps successfully, and booting back i installed python and yunbridge as you described all good done.

After that i found new small problem. My laptop and omega2 is on same wifi network, but "omega-CF2D.local" not working which was previously working.*

Above was my statement. For me YUN bridge never worked till now. And about above problem, i figured out what was the reason. Actually after i flashed firmware i forgot to reinstall omega arduino dock package.

Then i re-installed omega dock on arduino ide. Now omega-CF2D.local is working in browser and also arduino ide is detecting Omega2.

Coming to the topic, YUN bridge. You said (Formerly I supposed that python-light is enough but I was wrong.) What does mean, python light will not work? Should i install full python?

Also while trying YUN Bridge Console read, i felt omega dock is not communicating with Omega2.
on putty ssh
I am getting always
root@Omega-CF2D:~# telnet localhost 6571
telnet: can't connect to remote host (127.0.0.1): Connection refused

On which UART, Omega2 is interfaced with dock ?
Also on Omega2 side what is default baudrate for YUN bridge?

I had used this firmware

*#include <Bridge.h>
#include <Console.h>

SerialBridgeClass myBridge(Serial);

String name;

void setup() {
// Initialize Console and wait for port to open:
pinMode(13, OUTPUT);
digitalWrite(13, HIGH);
myBridge.begin();
ConsoleClass(myBridge);
Console.begin();
// Wait for Console port to connect
while (!Console);
digitalWrite(13, LOW);
Console.println("Hi, what's your name?");
}

void loop() {
if (Console.available() > 0) {
char c = Console.read(); // read the next char received
// look for the newline character, this is the last character in the string
if (c == '\n') {
//print text with the name received
Console.print("Hi ");
Console.print(name);
Console.println("! Nice to meet you!");
Console.println();
// Ask again for name and clear the old name
Console.println("Hi, what's your name?");
name = ""; // clear the name string
} else { // if the buffer is empty Cosole.read() returns -1
name += c; // append the read char from Console to the name string
}
} else {
delay(100);
}
}*

please response soon?

[Suman kumar Jha]

Hi György Farkas
Will Omega2 will support Arduino YUN official firmware ?

[Suman kumar Jha]

Hi György Farkas
Please response

[György Farkas]

@Suman-kumar-Jha I don't have an Arduino Yún. Sadly I don't know its official firmware. So I don't know that Omega2 is or isn't able to support the official firmware of Arduino Yún.

[Suman kumar Jha]

Thanks for the response, can you tell me if i bring same hardware specification like omega2 then is it possible to port other openwrt firmware ?

Flashing bootloader and firmware everything. I came across Dragino YUN shield. I had checked hardware. Everything is matching. I like omega2 modular design. So i want to stick with this.

Let me show you my project plan.

[Suman kumar Jha]

Hi György Farkas
please reply, guide me i need your help. If other board firmware i can't flash on omega2, then please tell me what configuration i need to do on linux side.

Also as before you said, i had done complete reset of omega2 then on fresh i had installed python full + YUN bridge and connected arduino UNO serial (RX TX). I had tested UART simple communication its working. Omega2 is communicating with arduino dock2 via UART (/dev/ttyS0 -- Arduinno(Serial)). But YUN bridge its not working.

I had read on arduino forum that, when arduino invoke "run-bridge" command through serial, then on linux side python bridge.py should be called which will setup bridge.

I had checked using WinSCP, files exist.

also i had checked some yunbridge files

I am waiting for your reply