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RS485/RS232/Serial transport class for mysensors.org

Scheduled Pinned Locked Moved Development
rs485 serialrs485
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  • hekH Offline
    hekH Offline
    hek
    Admin
    wrote on last edited by
    #109

    Looks like you got the pins to the Arduino wrong.

    Pin 9 >>> DI
    Pin 8 >>> RO
    Pin 2 >>> DE and RE

    elektro12345E 1 Reply Last reply
    0
    • hekH Offline
      hekH Offline
      hek
      Admin
      wrote on last edited by
      #110

      I need a nice picture done in fritzing (or similar) for an article on the main site on how to connect the RS485 module (atmega 328 enough I guess).

      Anyone volunteering in making one?

      1 Reply Last reply
      0
      • CrankyCoderC Offline
        CrankyCoderC Offline
        CrankyCoder
        wrote on last edited by
        #111

        so this is a 1 to 1 setup right? There is nothing here for multiple serial nodes correct?

        Home Automation Tinkerer
        www.CrankyCoder.net

        Controller: HomeAssistant in Kubernetes
        Gateway: MQTTClientGateway
        MySensors: 2.3

        1 Reply Last reply
        0
        • hekH Offline
          hekH Offline
          hek
          Admin
          wrote on last edited by
          #112

          Aren't they just daisy chained?

          1 Reply Last reply
          0
          • hekH hek

            Looks like you got the pins to the Arduino wrong.

            Pin 9 >>> DI
            Pin 8 >>> RO
            Pin 2 >>> DE and RE

            elektro12345E Offline
            elektro12345E Offline
            elektro12345
            wrote on last edited by elektro12345
            #113

            @hek
            On the pictures is connect to TX and RX pins arduino but I tried to connect to pins 8,9,2 and result was the same :(
            On thsi connections with pins 8,9,2 ofcourse and library mysensors 2.0 should works fine ?

            1 Reply Last reply
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            • hekH Offline
              hekH Offline
              hek
              Admin
              wrote on last edited by
              #114

              Yes, people have reported the RS485 transport working above.

              I just created this article with a summary of this thread
              https://www.mysensors.org/build/rs485

              1 Reply Last reply
              0
              • elektro12345E elektro12345

                Hello,
                I have a problem running gatewayserial to rs-485 and the node with the usual lightsensor.
                NODE # 1 as a gateway and tried to upload a sketch of the library 2.0 and 1.5.4, and the monitor serial I can not see any data, I use to check on the serial PuTTy com6 because the converter rs-485 to USB is connected to the PC.

                NODE # 2 as a light sensor, during the upload Sketch by arduino programmer for serial monitor can see the data being sent but after plugging arduino to rs-485 as below no longer visible.

                My question is whether I have something wrong with the connection or sketch, can someone show an example of a complete sketch for the gateway, and a node?

                Connection mine looks like this:
                TX and RX Connect was to pins 0 and 1 in arduino or 8 and 9, DE is always PIN 2.

                alt text

                BartB Offline
                BartB Offline
                Bart
                wrote on last edited by
                #115

                @elektro12345

                So what's with the DE+RE pins on that USB-RS485 converter? Will it even work in this configuration? I do have such converter but so far I've used the arduino as a SerialGateway to connect to RPi.

                elektro12345E 1 Reply Last reply
                0
                • BartB Offline
                  BartB Offline
                  Bart
                  wrote on last edited by Bart
                  #116

                  I am not sure if I am seeing a normal behavior. I don't know if it is expected that the sensor is taking such long time to become visible to the GW. I have recreated the examples from https://www.mysensors.org/build/rs485

                  The only difference is that I've added SketchInfo for the GW and used Serial1 on MEGA board instead of AltSoftSerial.

                  The debug on the motion sensor is as follows:

                  MCO:BGN:INIT NODE,CP=RSNNA--,VER=2.0.1-beta
                  TSM:INIT
                  TSM:INIT:TSP OK
                  TSF:ASID:OK,ID=1
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  !TSM:FPAR:NO REPLY
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  !TSM:FPAR:NO REPLY
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  !TSM:FPAR:NO REPLY
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  !TSM:FPAR:FAIL
                  TSM:FAILURE
                  TSM:FAILURE:PDT
                  TSM:FAILURE:RE-INIT
                  TSM:INIT
                  TSM:INIT:TSP OK
                  TSF:ASID:OK,ID=1
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
                  TSF:MSG:FPAR RES,ID=0,D=0
                  TSF:MSG:FPAR OK,ID=0,D=1
                  TSM:FPAR:OK
                  TSM:ID
                  TSM:ID:OK,ID=1
                  TSM:UPL
                  TSF:PING:SEND,TO=0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
                  TSF:CHKUPL:FAIL
                  !TSM:UPL:FAIL
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
                  TSF:MSG:FPAR RES,ID=0,D=0
                  TSF:MSG:FPAR OK,ID=0,D=1
                  TSM:FPAR:OK
                  TSM:ID
                  TSM:ID:OK,ID=1
                  TSM:UPL
                  TSF:PING:SEND,TO=0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
                  TSF:CHKUPL:FAIL
                  !TSM:UPL:FAIL
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
                  TSF:MSG:FPAR RES,ID=0,D=0
                  TSF:MSG:FPAR OK,ID=0,D=1
                  TSM:FPAR:OK
                  TSM:ID
                  TSM:ID:OK,ID=1
                  TSM:UPL
                  TSF:PING:SEND,TO=0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
                  TSF:CHKUPL:FAIL
                  !TSM:UPL:FAIL
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
                  TSF:MSG:FPAR RES,ID=0,D=0
                  TSF:MSG:FPAR OK,ID=0,D=1
                  TSM:FPAR:OK
                  TSM:ID
                  TSM:ID:OK,ID=1
                  TSM:UPL
                  TSF:PING:SEND,TO=0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
                  TSF:CHKUPL:FAIL
                  !TSM:UPL:FAIL
                  TSM:FPAR
                  TSF:MSG:SEND,1-1-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=8,pt=1,l=1,sg=0:0
                  TSF:MSG:FPAR RES,ID=0,D=0
                  TSF:MSG:FPAR OK,ID=0,D=1
                  TSM:FPAR:OK
                  TSM:ID
                  TSM:ID:OK,ID=1
                  TSM:UPL
                  TSF:PING:SEND,TO=0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=25,pt=1,l=1,sg=0:1
                  TSF:MSG:PONG RECV,HP=1
                  TSF:CHKUPL:OK
                  TSM:UPL:OK
                  TSM:READY
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
                  TSF:MSG:SEND,1-1-0-0,s=255,c=0,t=17,pt=0,l=10,sg=0,ft=0,st=OK:2.0.1-beta
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=11,pt=0,l=13,sg=0,ft=0,st=OK:Motion Sensor
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=0,t=1,pt=0,l=0,sg=0,ft=0,st=OK:
                  MCO:REG:REQ
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
                  TSF:MSG:SEND,1-1-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
                  TSF:MSG:READ,0-0-1,s=255,c=3,t=27,pt=1,l=1,sg=0:1
                  MCO:PIM:NODE REG=1
                  MCO:BGN:STP
                  MCO:BGN:INIT OK,ID=1,PAR=0,DIS=1,REG=1
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  0
                  TSF:MSG:SEND,1-1-0-0,s=1,c=1,t=16,pt=0,l=1,sg=0,ft=0,st=OK:0
                  

                  I don't know how to obtain debug from the Gateway Serial but as far as the GW messages on the console it looked as follows:

                  0;255;3;0;14;Gateway startup complete.
                  0;255;0;0;18;2.0.1-beta
                  0;255;3;0;11;SerialGateway
                  0;255;3;0;12;0.1
                  1;255;3;0;6;0
                  1;255;3;0;11;Motion Sensor
                  1;255;3;0;12;1.0
                  1;1;0;0;1;
                  1;1;1;0;16;0
                  1;1;1;0;16;0
                  1;1;1;0;16;0
                  1;1;1;0;16;0
                  1;1;1;0;16;0
                  

                  As you see it takes a fair amount of time (around 30-40 secs) to obtain the readings from the sensor. This happens each time I reset the sensor node but it works instantly if I reset the GW (i.e. the readings appear instantly after the reset). Is it expected behavior?

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                  • hekH Offline
                    hekH Offline
                    hek
                    Admin
                    wrote on last edited by
                    #117

                    30 seconds sound like a long time.. Not sure what could be wrong. I don't have any test setup here unfortunately.

                    BartB 2 Replies Last reply
                    0
                    • kduinoK Offline
                      kduinoK Offline
                      kduino
                      wrote on last edited by
                      #118

                      Hi,
                      I am wondering if I can just use the mySensors Lib to pass on the data via another connection. Currently I have a Loxone Controller which accepts UDP and TCP/IP connections (and others, but I chose these). As gateway I have an ArduinoMega and the network is running on RS485.
                      So my understanding is that I can setup the network with the mySensors code and all the data is collected by the gateway which passes the data via UDP to the controller. V.v. the controller sends the data to the gateway which passes tha data on to the correspondent node.
                      Is there any project similar to this?
                      Thank you very much for your help!
                      Best regards Kduino

                      1 Reply Last reply
                      0
                      • BartB Bart

                        @elektro12345

                        So what's with the DE+RE pins on that USB-RS485 converter? Will it even work in this configuration? I do have such converter but so far I've used the arduino as a SerialGateway to connect to RPi.

                        elektro12345E Offline
                        elektro12345E Offline
                        elektro12345
                        wrote on last edited by
                        #119

                        @Bart I do not know what You mean with DE+RE pins on the converter.
                        On the converter You connect A and B calbe from bus.
                        DE and RE pins fromMAX485 You connect with sealf and connect to pin in my case D2 on Arduino.

                        1 Reply Last reply
                        0
                        • elektro12345E Offline
                          elektro12345E Offline
                          elektro12345
                          wrote on last edited by
                          #120

                          I have a question, when I wont send do domoticz from Arduino presentation lightsensor I can send by serial something like this:

                          1;2;0;0;16;V_LIGHT_LEVEL
                          

                          and domoticz will understend that is the lightsensor LUX ?

                          1 Reply Last reply
                          0
                          • hekH hek

                            30 seconds sound like a long time.. Not sure what could be wrong. I don't have any test setup here unfortunately.

                            BartB Offline
                            BartB Offline
                            Bart
                            wrote on last edited by
                            #121

                            @hek

                            I was able to solve that long initialization problem with removing AltSoftSerial completely and using another Mega board on Serial1 serving as a GW. It looks like the AltSoftSerial on Nano was not working well with Serial1 on Mega.

                            Strange that although now it works almost instantly, the reading of data from the HA takes longer than before... Not sure what could be causing this.

                            It looks that these RS485 modules have the resistors already added between A and B cables and +5 and GND so I don't think that could be an issue.

                            1 Reply Last reply
                            0
                            • hekH Offline
                              hekH Offline
                              hek
                              Admin
                              wrote on last edited by
                              #122

                              Thanks for the feedback.

                              So how should the modules be inter-connected? Do you have time to create some drawing for the instruction page?

                              BartB 1 Reply Last reply
                              0
                              • hekH hek

                                Thanks for the feedback.

                                So how should the modules be inter-connected? Do you have time to create some drawing for the instruction page?

                                BartB Offline
                                BartB Offline
                                Bart
                                wrote on last edited by Bart
                                #123

                                @hek
                                I will do the schematic once I solve all issues as I am still losing events while connected to Home Assistant. Need to check whether it is because of pymysensors library (Home Assistant side) or if there is still some GW <-> Sensors problem. At this moment my Sensors board has around 48 binary states one can set/read from the controller and at the same time they are changeable via input pins (falling edge toggles the switch).

                                To give a quick overview of my setup:

                                2 x (MEGA 2560 + RS485 module)
                                alt text

                                I have the following connections for each mega+rs485 module:

                                • +5/GND connected to respective pins on rs485 module
                                • D2 connected to RE/DE
                                • D18 <-> RO
                                • D19 <-> DI

                                The A and B lines are connected to each other. (A-A, B-B). And most importantly I am using the above mentioned minor change in the MyTransportRS485.cpp to replace altSoftSerial with Serial1 (https://forum.mysensors.org/topic/1947/rs485-rs232-serial-transport-class-for-mysensors-org/99)

                                and just if anyone would like to try it here's the config I am using:

                                // Gateway:
                                #define MY_RS485
                                #define MY_RS485_DE_PIN 2
                                #define MY_RS485_BAUD_RATE 9600
                                #define MY_GATEWAY_SERIAL
                                // below not official for getting the Serial1
                                #define MY_RS485_SERIAL Serial1
                                
                                // Sensor node
                                #define MY_DEBUG
                                #define MY_RS485
                                #define MY_RS485_DE_PIN 2
                                #define MY_RS485_BAUD_RATE 9600
                                // below not official for getting the Serial1
                                #define MY_RS485_SERIAL Serial1
                                
                                1 Reply Last reply
                                1
                                • karlheinz2000K Offline
                                  karlheinz2000K Offline
                                  karlheinz2000
                                  wrote on last edited by
                                  #124

                                  @Bart
                                  Does it work with serial1 on mega2560?

                                  I can't get a single bit out of the harware serial1.
                                  Is it only the smal patch in MyTransportRS485.cpp?

                                  BartB 1 Reply Last reply
                                  0
                                  • karlheinz2000K karlheinz2000

                                    @Bart
                                    Does it work with serial1 on mega2560?

                                    I can't get a single bit out of the harware serial1.
                                    Is it only the smal patch in MyTransportRS485.cpp?

                                    BartB Offline
                                    BartB Offline
                                    Bart
                                    wrote on last edited by
                                    #125

                                    @karlheinz2000
                                    Yes. Got it working with this patch. Although not reliably when other board was using the altsoftserial.

                                    1 Reply Last reply
                                    0
                                    • karlheinz2000K Offline
                                      karlheinz2000K Offline
                                      karlheinz2000
                                      wrote on last edited by
                                      #126

                                      Got it working too :smile:
                                      Problem was: RX1 and TX1 labels on the chinese Mega2560 board are swapped. :angry:
                                      All other RX/TX labels are right.

                                      BartB 1 Reply Last reply
                                      0
                                      • karlheinz2000K karlheinz2000

                                        Got it working too :smile:
                                        Problem was: RX1 and TX1 labels on the chinese Mega2560 board are swapped. :angry:
                                        All other RX/TX labels are right.

                                        BartB Offline
                                        BartB Offline
                                        Bart
                                        wrote on last edited by
                                        #127

                                        @karlheinz2000 Are any of your boards using AltSoftSerial instead of HW serial? I was not able to get a reliable connection with software serial library....

                                        1 Reply Last reply
                                        0
                                        • karlheinz2000K Offline
                                          karlheinz2000K Offline
                                          karlheinz2000
                                          wrote on last edited by
                                          #128

                                          I use a mega with hw-serial and a nano (gateway) with AltSoftSerial.
                                          It works fine the last 24 hours. Still running...
                                          I did not test other configurations.

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