MySensors GW on rpi3

[mfalkvidd]

@Kurtsejr I tested the gateway on a spare raspberry pi and it does indeed print lots of ERROR accept: Bad file descriptor when more than one instance of the gateway is started. The solution is easy: don't start two instances at the same time.

The reason is actually printed in the log: ERROR bind: Address already in use but is easy to miss due to the many ERROR accept: Bad file descriptor

INFO  Starting gateway...
INFO  Protocol version - 2.4.0-alpha
DEBUG MCO:BGN:INIT GW,CP=R-NGL---,FQ=NA,REL=0,VER=2.4.0-alpha
ERROR bind: Address already in use
ERROR Failed to bind!
DEBUG MCO:BGN:STP
DEBUG MCO:REG:NOT NEEDED
DEBUG MCO:BGN:INIT OK,TSP=NA
ERROR accept: Bad file descriptor
ERROR accept: Bad file descriptor
ERROR accept: Bad file descriptor
ERROR accept: Bad file descriptor

[Kurtsejr]

@mfalkvidd said in MySensors GW on rpi3:

sudo systemctl enable mysgw.service

Thanks for your reply

I have run the command, result:

pi@MySensor-GW:~ $ sudo systemctl enable mysgw.service
pi@MySensor-GW:~ $

How do I remove if more that one instance is started? - I will try to google it. Perhaps it's easier to start from beginning again

[Kurtsejr]

@mfalkvidd I decided to reinstall, start from scratch by installing a new pi image om my SDHC disk, but trying to install the GW software I get this message:

pi@MySensor-GW:~ $ pwd
/home/pi
pi@MySensor-GW:~ $ sudo git clone https://github.com/mysensors/MySensors.git --branch development
Cloning into 'MySensors'...
fatal: unable to access 'https://github.com/mysensors/MySensors.git/': Couldn't connect to server
pi@MySensor-GW:~ $ sudo git clone https://github.com/mysensors/MySensors.git --branch master
Cloning into 'MySensors'...
fatal: unable to access 'https://github.com/mysensors/MySensors.git/': Couldn't connect to server
pi@MySensor-GW:~ $

Has something changed? or is it github that does not response?

[mfalkvidd]

@Kurtsejr said in MySensors GW on rpi3:

Has something changed? or is it github that does not response?

The Raspberry Pi probably doesn't have the right settings for connecting to Internet. What happens if you run ping google.com for example? You should get something like this:

ping google.com
PING google.com (142.250.179.142) 56(84) bytes of data.
64 bytes from ams17s10-in-f14.1e100.net (142.250.179.142): icmp_seq=1 ttl=58 time=33.3 ms
64 bytes from ams17s10-in-f14.1e100.net (142.250.179.142): icmp_seq=2 ttl=58 time=33.4 ms

If you don't get any replies, the raspberry pi doesn't have a working internet connection.

[mfalkvidd]

@Kurtsejr said in MySensors GW on rpi3:

How do I remove if more that one instance is started? - I will try to google it. Perhaps it's easier to start from beginning again

sudo systemctl stop mysgw.service will stop the gateway service if it is currently running. It will start automatically again after reboot (unless disabled).

sudo systemctl disable mysgw.service will disable autostart, but will keep the service running if it has already been started.

https://www.linuxtrainingacademy.com/systemd-cheat-sheet/ can be a good place to start

[Kurtsejr]

@mfalkvidd You are right, no network connection - strange I will investigate, thanks!

[Kurtsejr]

@Kurtsejr Now I have network connection, made an update and upgrade, and now I can install from github. Changed to rf24 radio, and could see that ethernet was default.

pi@MySensor-GW:~/MySensors $ sudo ./configure --my-transport=rf24
[SECTION] Detecting target machine.
[OK] machine detected: SoC=BCM2837, Type=rpi3, CPU=armv7l.
[SECTION] Detecting SPI driver.
[OK] SPI driver detected:BCM.
[SECTION] Gateway configuration.
[OK] Type: ethernet.
[OK] Transport: rf24.
[OK] Signing: Disabled.
[OK] Encryption: Disabled.
[OK] CPPFLAGS: -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloa t-abi=hard -DMY_RADIO_RF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX _ARCH_RASPBERRYPI
[OK] CXXFLAGS: -std=c++11
[SECTION] Detecting init system.
[OK] Init system detected: systemd.
[SECTION] Saving configuration.
[OK] Saved.
[SECTION] Cleaning previous builds.
[OK] Finished.

Next was to do a make, result:

pi@MySensor-GW:~/MySensors $ sudo make
g++ -MT build/hal/architecture/Linux/drivers/core/interrupt.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_RF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -Ofast -g -Wall -Wextra -std=c++11 -I. -I./core -I./hal/architecture/Linux/drivers/core -I./hal/architecture/Linux/drivers/BCM -c hal/architecture/Linux/drivers/core/interrupt.cpp -o build/hal/architecture/Linux/drivers/core/interrupt.o
hal/architecture/Linux/drivers/core/interrupt.cpp:33:10: fatal error: stropts.h: No such file or directory
33 | #include <stropts.h>
| ^~~~~~~~~~~
compilation terminated.
make: *** [Makefile:99: build/hal/architecture/Linux/drivers/core/interrupt.o] Error 1
pi@MySensor-GW:~/MySensors $

So it seems that something is missing, something linux basic ....

[mfalkvidd]

Nice work on the internet connectivity @Kurtsejr

It is an issue on some (newer?) linux versions. It has been fixed in the development version of MySensors. You can switch to the development version, or add the fix yourself.

See https://github.com/mysensors/MySensors/issues/1431 and https://github.com/mysensors/MySensors/pull/1446/files

Sorry for the inconvenience.

[Kurtsejr]

@Kurtsejr Thanks a lot!
I removed the entry in the interrupt.cpp fil, and was then able to do a make , "make" - with some warnings, but make ended up writing this to me:

/home/pi/MySensors/./hal/architecture/Linux/drivers/core/config.h:39: multiple d efinition of `conf'; build/hal/architecture/Linux/drivers/core/config.o:/home/pi /MySensors/hal/architecture/Linux/drivers/core/config.h:39: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:80: bin/mysgw] Error 1
pi@MySensor-GW:~/MySensors $
pi@MySensor-GW:~/MySensors $ sudo ./bin/mysgw -c
sudo: ./bin/mysgw: command not found

This means that I do not have a mysgw file in "bin" - bin dir is empty

[Kurtsejr]

@Kurtsejr Thanks
Everything seems to be working, used the "dev version" - thanks for helping, I started with a new image.

[mfalkvidd]

Nice work @Kurtsejr, thanks for reporting back