Skip to content
  • MySensors
  • OpenHardware.io
  • Categories
  • Recent
  • Tags
  • Popular
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo
  1. Home
  2. Hardware
  3. Step-by-step procedure to connect the NRF24L01+ to the GPIO pins and use the Raspberry as a Serial Gateway (MySensors 1.x)

Step-by-step procedure to connect the NRF24L01+ to the GPIO pins and use the Raspberry as a Serial Gateway (MySensors 1.x)

Scheduled Pinned Locked Moved Hardware
nrf24raspberry piraspberryraspberry nrf24l01 gpiogateway
168 Posts 47 Posters 175.0k Views 36 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • hekH Offline
    hekH Offline
    hek
    Admin
    wrote on last edited by
    #116

    Yes, known problem.

    I had some hopes on @marceloaqno and @aaron832 providing a PR into development branch (so we can scrap the old RPI code). But there hasn't been any activity in a while.
    https://forum.mysensors.org/topic/2759/mysensors-raspberry-port-suggestions/12

    Tore André RosanderT 1 Reply Last reply
    0
    • hekH hek

      Yes, known problem.

      I had some hopes on @marceloaqno and @aaron832 providing a PR into development branch (so we can scrap the old RPI code). But there hasn't been any activity in a while.
      https://forum.mysensors.org/topic/2759/mysensors-raspberry-port-suggestions/12

      Tore André RosanderT Offline
      Tore André RosanderT Offline
      Tore André Rosander
      wrote on last edited by
      #117

      @hek But insted of including heartbeats from every non sensor node (trying to keep 2.4 ghz traffic to a minimum), can i solve this by using an arduino repeater node? So the repeater knows the network map and sends heartbeat to the gateway.

      1 Reply Last reply
      0
      • hekH Offline
        hekH Offline
        hek
        Admin
        wrote on last edited by
        #118

        @Tore-André-Rosander

        No, not possible. The repeater won't propagate it's knowledge about all sub-nodes.

        1 Reply Last reply
        0
        • Sander StolkS Sander Stolk

          @mfalkvidd I did the make clean and the make install and rebooted.
          Still 0x4c eq. 76

          Using username "pi".
          Server refused our key
          pi@192.168.1.14's password:
          ______                      _   _
          |  _  \                    | | (_)
          | | | |___  _ __ ___   ___ | |_ _  ___ ____
          | | | / _ \| '_ ` _ \ / _ \| __| |/ __|_  /
          | |/ / (_) | | | | | | (_) | |_| | (__ / /
          |___/ \___/|_| |_| |_|\___/ \__|_|\___/___|
          
          
          Last login: Sat Apr  9 18:41:17 2016 from 192.168.1.34
          
          Monday, 11 April 2016, 12:10:24 pm CEST
          Linux 4.1.18-v7+ armv7l GNU/Linux
          Uptime.............: 1 days, 17h29m13s
          Memory.............: 520336kB (Free) / 948056kB (Total)
          Load Averages......: 0.00, 0.01, 0.05 (1, 5, 15 min)
          Running Processes..: 97
          IP Addresses.......: 192.168.1.14
          
          pi@Domoticz3:~$ cd Raspberry/
          pi@Domoticz3:~/Raspberry$ cat MyConfig.h
          /*
           The MySensors library adds a new layer on top of the RF24 library.
           It handles radio network routing, relaying and ids.
          
           Created by Henrik Ekblad <henrik.ekblad@gmail.com>
           12/10/14 - Ported to Raspberry Pi by OUJABER Mohamed <m.oujaber@gmail.com>
          
           This program is free software; you can redistribute it and/or
           modify it under the terms of the GNU General Public License
           version 2 as published by the Free Software Foundation.
          */
          
          #ifndef MyConfig_h
          #define MyConfig_h
          
          /***
           * Configure Sensor Network
           */
          #define RF24_CHANNEL       111             //RF channel for the sensor net, 0-127
          #define RF24_DATARATE      RF24_250KBPS   //RF24_250KBPS for 250kbs, RF24_1MBPS for 1Mbps, or RF24_2MBPS for 2Mbps
          #define RF24_PA_LEVEL      RF24_PA_MAX    //Sensor PA Level == RF24_PA_MIN=-18dBm, RF24_PA_LOW=-12dBm, RF24_PA_HIGH=-6dBM, and RF24_PA_MAX=0dBm
          #define RF24_PA_LEVEL_GW   RF24_PA_MAX  //Gateway PA Level, defaults to Sensor net PA Level.  Tune here if using an amplified nRF2401+ in your gateway.
          #define BASE_RADIO_ID      ((uint64_t)0xA8A8E1FC00LL) // This is also act as base value for sensor nodeId addresses. Change this (or channel) if you have more than one sensor network.
          
          // MySensors online examples defaults
          #define DEFAULT_CE_PIN 9
          #define DEFAULT_CS_PIN 10
          
          
          /***
           * Enable/Disable debug logging
           */
          #define DEBUG
          
          
          #ifdef __Raspberry_Pi
                  #define vsnprintf_P vsnprintf
                  #define snprintf_P snprintf
                  #define PSTR(x) (x)
                  #define printf_P printf
                  #define strlen_P strlen
          #endif
          
          #endif
          pi@Domoticz3:~/Raspberry$ make clean
          rm -rf MyGateway MySensor MyMessage PiEEPROM PiGateway PiGatewaySerial MyGateway.o MySensor.o MyMessage.o PiEEPROM.o PiGateway.o PiGatewaySerial.o
          pi@Domoticz3:~/Raspberry$ make all
          g++ -c -o MyGateway.o MyGateway.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -c -o MySensor.o MySensor.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -c -o MyMessage.o MyMessage.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -c -o PiEEPROM.o PiEEPROM.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -c -o PiGateway.o PiGateway.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -o PiGateway MyGateway.o MySensor.o MyMessage.o PiEEPROM.o PiGateway.o -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24 -lrf24-bcm
          g++ -c -o PiGatewaySerial.o PiGatewaySerial.cpp -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24
          g++ -o PiGatewaySerial MyGateway.o MySensor.o MyMessage.o PiEEPROM.o PiGatewaySerial.o -Wall -Ofast -mfpu=vfp -lpthread -g -D__Raspberry_Pi -mfloat-abi=hard -mtune=arm1176jzf-s -D_TTY_NAME=\"/dev/ttyMySensorsGateway\" -D_TTY_GROUPNAME=\"tty\" -march=armv6zk -I. -I/usr/local/include/RF24 -lrf24-bcm -lutil
          pi@Domoticz3:~/Raspberry$ sudo reboot
          
          Broadcast message from pi@Domoticz3 on pts/1 (Mon 2016-04-11 12:12:17 CEST):
          
          The system is going down for reboot NOW!
          
          pi@Domoticz3:~/Raspberry$
          Using username "pi".
          Server refused our key
          pi@192.168.1.14's password:
          ______                      _   _
          |  _  \                    | | (_)
          | | | |___  _ __ ___   ___ | |_ _  ___ ____
          | | | / _ \| '_ ` _ \ / _ \| __| |/ __|_  /
          | |/ / (_) | | | | | | (_) | |_| | (__ / /
          |___/ \___/|_| |_| |_|\___/ \__|_|\___/___|
          
          
          Last login: Mon Apr 11 12:10:24 2016 from 192.168.1.34
          
          Monday, 11 April 2016, 12:12:45 pm CEST
          Linux 4.1.18-v7+ armv7l GNU/Linux
          Uptime.............: 0 days, 00h00m25s
          Memory.............: 770952kB (Free) / 948056kB (Total)
          Load Averages......: 0.59, 0.16, 0.05 (1, 5, 15 min)
          Running Processes..: 100
          IP Addresses.......: 192.168.1.14
          
          pi@Domoticz3:~$ ls
          bash_scripts  domoticz  Dropbox-Uploader  Raspberry  RF24
          pi@Domoticz3:~$ sudo /etc/init.d/PiGatewaySerial start
          [ ok ] Starting PiGatewaySerial (via systemctl): PiGatewaySerial.service.
          pi@Domoticz3:~$ sudo /etc/init.d/PiGatewaySerial start
          [ ok ] Starting PiGatewaySerial (via systemctl): PiGatewaySerial.service.
          pi@Domoticz3:~$ sudo ln -s /dev/ttyMySensorsGateway /dev/ttyUSB20
          ln: failed to create symbolic link ‘/dev/ttyUSB20’: File exists
          pi@Domoticz3:~$ sudo /usr/local/sbin/PiGatewaySerial
          Starting PiGatewaySerial...
          Protocol version - 1.4
          Created PTY '/dev/pts/2'
          Gateway tty: /dev/ttyMySensorsGateway
          ================ SPI Configuration ================
          CSN Pin          = CE0 (PI Hardware Driven)
          CE Pin           = Custom GPIO25
          Clock Speed      = 8 Mhz
          ================ NRF Configuration ================
          STATUS           = 0x0e RX_DR=0 TX_DS=0 MAX_RT=0 RX_P_NO=7 TX_FULL=0
          RX_ADDR_P0-1     = 0xa8a8e
          RX_ADDR_P2-5     = 0xff 0xc4 
          TX_ADDR          = 0xa8a8e1fc07
          RX_PW_P0-6       = 0x20 0x20 0x20 0x00 0x00 0x00
          EN_AA            = 0x3b
          EN_RXADDR        = 0x06
          RF_CH            = 0x4c
          RF_SETUP         = 0x23
          CONFIG           = 0x0e
          DYNPD/FEATURE    = 0x3f 0x06
          Data Rate        = 250KBPS
          Model            = nRF24L01+
          CRC Length       = 16 bits
          PA Power         = PA_LOW
          read: 5-5-5 s=5,c=5,t=5,pt=0,l=0:
          version mismatch
          ^CReceived SIGINT
          Exiting...
          pi@Domoticz3:~$
          
          J Offline
          J Offline
          jpbabou
          wrote on last edited by
          #119

          @Sander-Stolk hi
          how do you achieve to have a nice 'logon' screen ou your PI: Domotics Logo, @ip,memory,date... etc etc..
          Im' newbee on raspberry from france
          HAve a nice day
          JP
          i really want to have the same or any available sample like yours


          | _ \ | | ()
          | | | |
          __ _ __ ___ ___ | |_ _ ___ ____
          | | | / _ | '_ ` _ \ / _ | | |/ | /
          | |/ / () | | | | | | () | |_| | (
          / /
          |
          / _/|| || ||___/ _||_/|

          Last login: Mon Apr 11 12:10:24 2016 from 192.168.1.34

          Monday, 11 April 2016, 12:12:45 pm CEST
          Linux 4.1.18-v7+ armv7l GNU/Linux
          Uptime.............: 0 days, 00h00m25s
          Memory.............: 770952kB (Free) / 948056kB (Total)
          Load Averages......: 0.59, 0.16, 0.05 (1, 5, 15 min)
          Running Processes..: 100
          IP Addresses.......: 192.168.1.14

          Tore André RosanderT 1 Reply Last reply
          0
          • J jpbabou

            @Sander-Stolk hi
            how do you achieve to have a nice 'logon' screen ou your PI: Domotics Logo, @ip,memory,date... etc etc..
            Im' newbee on raspberry from france
            HAve a nice day
            JP
            i really want to have the same or any available sample like yours


            | _ \ | | ()
            | | | |
            __ _ __ ___ ___ | |_ _ ___ ____
            | | | / _ | '_ ` _ \ / _ | | |/ | /
            | |/ / () | | | | | | () | |_| | (
            / /
            |
            / _/|| || ||___/ _||_/|

            Last login: Mon Apr 11 12:10:24 2016 from 192.168.1.34

            Monday, 11 April 2016, 12:12:45 pm CEST
            Linux 4.1.18-v7+ armv7l GNU/Linux
            Uptime.............: 0 days, 00h00m25s
            Memory.............: 770952kB (Free) / 948056kB (Total)
            Load Averages......: 0.59, 0.16, 0.05 (1, 5, 15 min)
            Running Processes..: 100
            IP Addresses.......: 192.168.1.14

            Tore André RosanderT Offline
            Tore André RosanderT Offline
            Tore André Rosander
            wrote on last edited by
            #120

            @jpbabou That is the Message of the day (motd) and you can edit it to fit your needs.
            This guide should work on debian weezy and jessie
            https://oitibs.com/debian-wheezy-dynamic-motd/

            J 2 Replies Last reply
            0
            • Tore André RosanderT Tore André Rosander

              @jpbabou That is the Message of the day (motd) and you can edit it to fit your needs.
              This guide should work on debian weezy and jessie
              https://oitibs.com/debian-wheezy-dynamic-motd/

              J Offline
              J Offline
              jpbabou
              wrote on last edited by
              #121

              @Tore-André-Rosander
              Tks a lot for your answer.. It seems to look like what i want at logon..Iwill test it.
              I keep you in touch!

              1 Reply Last reply
              0
              • Tore André RosanderT Tore André Rosander

                @jpbabou That is the Message of the day (motd) and you can edit it to fit your needs.
                This guide should work on debian weezy and jessie
                https://oitibs.com/debian-wheezy-dynamic-motd/

                J Offline
                J Offline
                jpbabou
                wrote on last edited by
                #122

                @Tore-André-Rosander
                Tks a lot
                It works's fine!!
                pi@JpPi2 ~ $ ssh JpPi3
                _ ____ _ _____
                | |_ __ | _ ()__ /
                _ | | '_ | |) | | |
                | || | |) | /| |) |
                _
                /| ._/|| ||___/
                |
                |

                Welcome to Raspbian GNU/Linux 8.0 (jessie) (4.4.7-v7+).

                System information as of: Wed Jun 1 09:10:09 CEST 2016

                System load: 0.01 IP Address:
                Memory usage: 17.9% System uptime: 1 day
                Usage on /: 27% Swap usage: 0.0%
                Local Users: 1 Processes: 126

                Last login: Wed Jun 1 09:03:53 2016 from raspberryjp

                1 Reply Last reply
                1
                • A Offline
                  A Offline
                  Atman
                  wrote on last edited by
                  #123

                  I have been struggeling with this for some time now. It seems my compiler is not the standard for raspberry pi? (I have a pi 2). I have used the domoticz sdcard as ground for my system and it works (a bit sketchy with random freezes and I cannot access the domotics webserver from chrome) but still. Anyway, I get stuck on making the RF24 package. Any ideas?

                  pi@raspberrypi ~/RF24 $ make all && sudo make install
                  arm-linux-gnueabihf-g++ -fPIC -march=armv7-a -mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard -Ofast -Wall -pthread  -c RF24.cpp
                  cc1plus: error: bad value (cortex-a7) for -mtune switch
                  Makefile:40: recipe for target 'RF24.o' failed
                  make: *** [RF24.o] Error 1
                  
                  1 Reply Last reply
                  0
                  • alexsh1A Offline
                    alexsh1A Offline
                    alexsh1
                    wrote on last edited by
                    #124

                    Did anyone setup rfm69 successfully on the raspberry pi

                    1 Reply Last reply
                    0
                    • GertSandersG Offline
                      GertSandersG Offline
                      GertSanders
                      Hardware Contributor
                      wrote on last edited by
                      #125

                      Has anyone used the Raspberry GW software in combination with nodes that run the new 2.0.0 MySensors code ?

                      1 Reply Last reply
                      0
                      • tbowmoT Offline
                        tbowmoT Offline
                        tbowmo
                        Admin
                        wrote on last edited by
                        #126

                        @GertSanders

                        It's not supported, 2.0.0 nodes require a 2.0.0 GW. And the raspberry pi port is not updated to 2.0.0 (and unfortunately there is currently no one in the core group that uses the rpi gw.. We all use serial / ethernet gw's of some sort)

                        GertSandersG W 2 Replies Last reply
                        0
                        • tbowmoT tbowmo

                          @GertSanders

                          It's not supported, 2.0.0 nodes require a 2.0.0 GW. And the raspberry pi port is not updated to 2.0.0 (and unfortunately there is currently no one in the core group that uses the rpi gw.. We all use serial / ethernet gw's of some sort)

                          GertSandersG Offline
                          GertSandersG Offline
                          GertSanders
                          Hardware Contributor
                          wrote on last edited by
                          #127

                          @tbowmo
                          I was afraid of that. In my enthusiasm I updated to 2.0.0, but now my new nodes play dead.
                          At least I know why.
                          Time to make that old ethernet gateway functional again.
                          Since Breda meetup is this weekend, I will have no more time to figure this out (if I could ever, this is UNIX). Maybe after I can try something.

                          GertSandersG 1 Reply Last reply
                          0
                          • tbowmoT tbowmo

                            @GertSanders

                            It's not supported, 2.0.0 nodes require a 2.0.0 GW. And the raspberry pi port is not updated to 2.0.0 (and unfortunately there is currently no one in the core group that uses the rpi gw.. We all use serial / ethernet gw's of some sort)

                            W Offline
                            W Offline
                            wergeld
                            wrote on last edited by
                            #128

                            @tbowmo

                            What would be required to get the RPi gateway up and running? Having single controller/gateway is great.

                            GertSandersG 1 Reply Last reply
                            0
                            • GertSandersG Offline
                              GertSandersG Offline
                              GertSanders
                              Hardware Contributor
                              wrote on last edited by
                              #129

                              @tbowmo
                              Is a 2.0.0 based gateway backward compatible with nodes in an older version ?

                              1 Reply Last reply
                              0
                              • W wergeld

                                @tbowmo

                                What would be required to get the RPi gateway up and running? Having single controller/gateway is great.

                                GertSandersG Offline
                                GertSandersG Offline
                                GertSanders
                                Hardware Contributor
                                wrote on last edited by
                                #130

                                @wergeld
                                Probably porting the Arduino lib to Raspberry and compiling again ?

                                W 1 Reply Last reply
                                0
                                • GertSandersG GertSanders

                                  @tbowmo
                                  I was afraid of that. In my enthusiasm I updated to 2.0.0, but now my new nodes play dead.
                                  At least I know why.
                                  Time to make that old ethernet gateway functional again.
                                  Since Breda meetup is this weekend, I will have no more time to figure this out (if I could ever, this is UNIX). Maybe after I can try something.

                                  GertSandersG Offline
                                  GertSandersG Offline
                                  GertSanders
                                  Hardware Contributor
                                  wrote on last edited by
                                  #131

                                  @tbowmo
                                  Is the last 2.0.0-dev version (before the new 2.0.0 official release) still available somewhere ?
                                  That DEV version seemed to still work with my Raspi GW.

                                  1 Reply Last reply
                                  0
                                  • GertSandersG GertSanders

                                    @wergeld
                                    Probably porting the Arduino lib to Raspberry and compiling again ?

                                    W Offline
                                    W Offline
                                    wergeld
                                    wrote on last edited by
                                    #132

                                    @GertSanders

                                    Time to start reading up on converting the lib! Might have a go at it in week or so. Work is holding me hostage at the moment.

                                    1 Reply Last reply
                                    0
                                    • GertSandersG Offline
                                      GertSandersG Offline
                                      GertSanders
                                      Hardware Contributor
                                      wrote on last edited by
                                      #133

                                      Praise Apple for making TimeMachine. I was able to set back the last version of MySensors lib I know was working with my gateway in a bout 1 minute.

                                      Back in business now. Upgrading the gateway and nodes to full 2.0.0 is for later.

                                      1 Reply Last reply
                                      1
                                      • tbowmoT Offline
                                        tbowmoT Offline
                                        tbowmo
                                        Admin
                                        wrote on last edited by tbowmo
                                        #134

                                        @wergeld

                                        you need to port the mysensors core library.. It is however filled with arduino specifics at the moment (we have had some talks about removing arduino dependencies, but it's not made yet).

                                        Ideally someone should make a raspberry pi port, that we can merge into the main repository, so the same codebase can be build for both raspberryPi and arduino based hardware.

                                        @GertSanders

                                        A 2.0.0 GW should be compatible with 1.5.x nodes, but 2.0.0 nodes require a 2.0.0 GW.. (I can't remember the specifics in what the changes are, @tekka is the brain behind that stuff). That said, we do recommend that both nodes and GW will be updated to same mysensors versions, as to avoid any problems.

                                        mfalkviddM 1 Reply Last reply
                                        0
                                        • tbowmoT tbowmo

                                          @wergeld

                                          you need to port the mysensors core library.. It is however filled with arduino specifics at the moment (we have had some talks about removing arduino dependencies, but it's not made yet).

                                          Ideally someone should make a raspberry pi port, that we can merge into the main repository, so the same codebase can be build for both raspberryPi and arduino based hardware.

                                          @GertSanders

                                          A 2.0.0 GW should be compatible with 1.5.x nodes, but 2.0.0 nodes require a 2.0.0 GW.. (I can't remember the specifics in what the changes are, @tekka is the brain behind that stuff). That said, we do recommend that both nodes and GW will be updated to same mysensors versions, as to avoid any problems.

                                          mfalkviddM Offline
                                          mfalkviddM Offline
                                          mfalkvidd
                                          Mod
                                          wrote on last edited by mfalkvidd
                                          #135

                                          @tbowmo @wergeld @GertSanders a port is already available, see https://forum.mysensors.org/topic/2759/mysensors-raspberry-port-suggestions/11 (and github)

                                          It would be awesome if someone could merge that great work with the MySensors repo.

                                          1 Reply Last reply
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          12

                                          Online

                                          11.7k

                                          Users

                                          11.2k

                                          Topics

                                          113.0k

                                          Posts


                                          Copyright 2019 TBD   |   Forum Guidelines   |   Privacy Policy   |   Terms of Service
                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • MySensors
                                          • OpenHardware.io
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular