I have checked with ethernet port instead of serial:

sudo ./configure --my-debug=enable --my-config-file=/etc/mysensors.conf --my-transport=rs485 --my-gateway=ethernet --my-port=5003 --my-rs485-de-pin=7 --my-rs485-serial-port=/dev/ttyS0 --my-rs485-baudrate=9600 --my-leds-err-pin=12 --my-leds-rx-pin=16 --my-leds-tx-pin=18

The results is:

1. The gateway works with nodes as expected - no need to hit Enter for updates. It works as daemon as well.
   So why it not works on gateway with serial? My suspicious is the port - I was using fake ones (/dev/ttyMySensorsGateway and /dev/ttyUSB020) and the real one /dev/ttyAMA0. Always the same. I tried to listen the (fake) port with "screen" command - nothing was there.

2. I have another finding/problem. When the gateway starts:

Sep 21 14:20:57 ERROR Failed to open log pipe.
Sep 21 14:20:57 INFO  Starting gateway...
Sep 21 14:20:57 INFO  Protocol version - 2.3.2
Sep 21 14:20:57 DEBUG MCO:BGN:INIT GW,CP=RSNGL---,FQ=NA,REL=255,VER=2.3.2
Sep 21 14:20:57 DEBUG TSF:LRT:OK
Sep 21 14:20:57 DEBUG TSM:INIT
Sep 21 14:20:57 DEBUG TSF:WUR:MS=0
Sep 21 14:20:57 DEBUG Serial port /dev/ttyS0 (9600 baud) created
Sep 21 14:20:57 DEBUG TSM:INIT:TSP OK
Sep 21 14:20:57 DEBUG TSM:INIT:GW MODE
Sep 21 14:20:57 DEBUG TSM:READY:ID=0,PAR=0,DIS=0
Sep 21 14:20:57 DEBUG MCO:REG:NOT NEEDED
Sep 21 14:20:57 DEBUG Listening for connections on F▒▒:5003
Sep 21 14:20:57 DEBUG MCO:BGN:STP
Sep 21 14:20:57 DEBUG MCO:BGN:INIT OK,TSP=1
Sep 21 14:20:57 DEBUG TSM:READY:NWD REQ
Sep 21 14:20:57 DEBUG ?TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:
Sep 21 14:21:10 DEBUG TSF:MSG:READ,50-50-0,s=0,c=1,t=23,pt=2,l=2,sg=0:58

... you can find that instead of IP address (I was expecting 127.0.0.0 or 0.0.0.0) I get a garbage:

DEBUG Listening for connections on F▒▒:5003

After another trial (make clean -> ./configure .... -> make I get similar but with different "garbage":

DEBUG Listening for connections on ▒ݾ:

Home Assistant is unable to find the gateway on ports 127.0.0.1 and 0.0.0.0. I tried local network IP (static) - it was "accepted" (no connection error returned), but no Nodes has been found.
I'm really stubborn to find single board solution for Gateway (RS485 nodes) and Controller but I'm getting tired :(.

@Jstoaks no, I did not. I gave up. After some research I found better solution:
Raspberry PI zero + mysgw (485) + Mqtt + Node Red with Dashboard UI. It works great. I use mqtt for both mysensors and wifi devices (esp32/esp8266).
Node Red handles my home automation very well.

I have checked with ethernet port instead of serial:

sudo ./configure --my-debug=enable --my-config-file=/etc/mysensors.conf --my-transport=rs485 --my-gateway=ethernet --my-port=5003 --my-rs485-de-pin=7 --my-rs485-serial-port=/dev/ttyS0 --my-rs485-baudrate=9600 --my-leds-err-pin=12 --my-leds-rx-pin=16 --my-leds-tx-pin=18

The results is:

1. The gateway works with nodes as expected - no need to hit Enter for updates. It works as daemon as well.
   So why it not works on gateway with serial? My suspicious is the port - I was using fake ones (/dev/ttyMySensorsGateway and /dev/ttyUSB020) and the real one /dev/ttyAMA0. Always the same. I tried to listen the (fake) port with "screen" command - nothing was there.

2. I have another finding/problem. When the gateway starts:

Sep 21 14:20:57 ERROR Failed to open log pipe.
Sep 21 14:20:57 INFO  Starting gateway...
Sep 21 14:20:57 INFO  Protocol version - 2.3.2
Sep 21 14:20:57 DEBUG MCO:BGN:INIT GW,CP=RSNGL---,FQ=NA,REL=255,VER=2.3.2
Sep 21 14:20:57 DEBUG TSF:LRT:OK
Sep 21 14:20:57 DEBUG TSM:INIT
Sep 21 14:20:57 DEBUG TSF:WUR:MS=0
Sep 21 14:20:57 DEBUG Serial port /dev/ttyS0 (9600 baud) created
Sep 21 14:20:57 DEBUG TSM:INIT:TSP OK
Sep 21 14:20:57 DEBUG TSM:INIT:GW MODE
Sep 21 14:20:57 DEBUG TSM:READY:ID=0,PAR=0,DIS=0
Sep 21 14:20:57 DEBUG MCO:REG:NOT NEEDED
Sep 21 14:20:57 DEBUG Listening for connections on F▒▒:5003
Sep 21 14:20:57 DEBUG MCO:BGN:STP
Sep 21 14:20:57 DEBUG MCO:BGN:INIT OK,TSP=1
Sep 21 14:20:57 DEBUG TSM:READY:NWD REQ
Sep 21 14:20:57 DEBUG ?TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:
Sep 21 14:21:10 DEBUG TSF:MSG:READ,50-50-0,s=0,c=1,t=23,pt=2,l=2,sg=0:58

... you can find that instead of IP address (I was expecting 127.0.0.0 or 0.0.0.0) I get a garbage:

DEBUG Listening for connections on F▒▒:5003

After another trial (make clean -> ./configure .... -> make I get similar but with different "garbage":

DEBUG Listening for connections on ▒ݾ:

Home Assistant is unable to find the gateway on ports 127.0.0.1 and 0.0.0.0. I tried local network IP (static) - it was "accepted" (no connection error returned), but no Nodes has been found.
I'm really stubborn to find single board solution for Gateway (RS485 nodes) and Controller but I'm getting tired :(.

Hi!

I set up MySensors gateway on RPI Zero. The goal is to have a gateway for RS485 nodes and a HomeAsisstant on the same board.

I set up the UART like described here:
https://di-marco.net/blog/it/2020-06-06-raspberry_pi_3_4_and_0_w_serial_port_usage/

... and tested using Python script and separate TTL<->USB converter to view what is going on on TX/RX pins of RPI and Arduino (Node).

• (irrelevan for this topic) What is interesting - I have two systems set up (two SD cards) based on the same instruction. First I tried to install MySensors first (plain system) - the right device is /tty/AMA0. Second, I installed HomeAsisstant (Docker) first, then prepared ports and install MySensors - the right device is /ttyS0.

The installation process for the gateway was as follows:

sudo apt-get install git
git clone https://github.com/mysensors/MySensors.git --branch master
cd MySensors
sudo touch /dev/ttyUSB020 && sudo chmod 660 /dev/ttyUSB020 && sudo chown root:dialout /dev/ttyUSB020

and the configuration as follows:

sudo ./configure --my-debug=enable --my-config-file=/etc/mysensors.conf --my-transport=rs485 --my-gateway=serial --my-port=/dev/ttyUSB020 --my-serial-baudrate=115200 --my-serial-is-pty --my-rs485-de-pin=7 --my-rs485-serial-port=/dev/ttyAMA0 --my-rs485-baudrate=9600 --my-leds-err-pin=12 --my-leds-rx-pin=16 --my-leds-tx-pin=18

After I started the gateway using

sudo ./bin/mysgw

It started as follows:

Sep 21 12:43:27 ERROR Failed to open log pipe.
Sep 21 12:43:27 INFO  Starting gateway...
Sep 21 12:43:27 INFO  Protocol version - 2.3.2
Sep 21 12:43:27 DEBUG MCO:BGN:INIT GW,CP=RSNGL---,FQ=NA,REL=255,VER=2.3.2
Sep 21 12:43:27 DEBUG TSF:LRT:OK
Sep 21 12:43:27 DEBUG TSM:INIT
Sep 21 12:43:27 DEBUG TSF:WUR:MS=0
Sep 21 12:43:27 DEBUG Serial port /dev/ttyAMA0 (9600 baud) created
Sep 21 12:43:27 DEBUG TSM:INIT:TSP OK
Sep 21 12:43:27 DEBUG TSM:INIT:GW MODE
Sep 21 12:43:27 DEBUG TSM:READY:ID=0,PAR=0,DIS=0
Sep 21 12:43:27 DEBUG MCO:REG:NOT NEEDED
0;255;3;0;14;Gateway startup complete.
0;255;0;0;18;2.3.2
Sep 21 12:43:27 DEBUG MCO:BGN:STP
Sep 21 12:43:27 DEBUG MCO:BGN:INIT OK,TSP=1

Sep 21 12:43:28 DEBUG TSM:READY:NWD REQ

Then I turned on the Node and it could not get response from gateway:

227278 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
229287 TSM:UPL
229306 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
231314 TSM:UPL
231332 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
233341 TSM:UPL
233360 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
235368 !TSM:UPL:FAIL
235370 TSM:FPAR
235371 TSM:FPAR:STATP=0
235373 TSM:ID
235375 TSM:ID:OK
235376 TSM:UPL

..untill I pressed <Enter>

Sep 21 12:49:40 DEBUG TSM:READY:NWD REQ
Sep 21 12:49:40 DEBUG ?TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:
Sep 21 12:49:40 DEBUG TSF:MSG:READ,50-50-0,s=255,c=3,t=24,pt=1,l=1,sg=0:1
Sep 21 12:49:40 DEBUG TSF:MSG:PINGED,ID=50,HP=1
Sep 21 12:49:40 DEBUG TSF:MSG:SEND,0-0-50-50,s=255,c=3,t=25,pt=1,l=1,sg=0,ft=0,st=OK:1

and on the node:

388210 TSF:MSG:BC
388353 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=21,pt=1,l=1,sg=0,ft=0,st=OK:0
388360 TSF:MSG:READ,0-0-50,s=255,c=3,t=25,pt=1,l=1,sg=0:1
388365 TSF:MSG:PONG RECV,HP=1
388368 TSM:UPL:OK
388369 TSM:READY:ID=50,PAR=0,DIS=1
388391 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
390421 TSF:MSG:SEND,50-50-0-0,s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=OK:2.3.2
390446 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
392480 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=11,pt=0,l=12,sg=0,ft=0,st=OK:Light Sensor
392508 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.0
392531 TSF:MSG:SEND,50-50-0-0,s=0,c=0,t=16,pt=0,l=0,sg=0,ft=0,st=OK:
392538 MCO:REG:REQ
392557 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
394582 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
396605 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
398628 TSF:MSG:SEND,50-50-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=OK:2
400635 MCO:BGN:INIT OK,TSP=1

So it seems fine - there is communication etc... The problem is that nothing happens on the gateway side untill I press <Enter>. It does not work "by it self". After I hit the key again (in putty) the program shows all data sent by Node since last press.

Same problem seems to be when the mysgw is stared as daemon (--daemon or as service) - there is no reaction on Nodes. I waited 45min :(.

Any idea for that?
Regards!
Konrad

Hi there!
Did anyone tried (successfuly) to use ESP32 as gateway for RS485 nodes?
So far I tried to (testing on ESP8266):

1. ...use example for Serial Gateway: https://www.mysensors.org/build/rs485 but no success. AltSoftwareSerial is not working with ESP32, it won't compile,
2. ...search for solution to replace AltSoftwareSerial to EspSoftwareSerial - but nothing found,
3. ...change to HWSerial (#define MY_RS485_HWSERIAL Serial1 // also checked with Serial) but there is no data "comming out" from TX pin (except ESP "junk" and the start),

Some debug info:

• The node (Arduino) is the code from example: https://www.mysensors.org/build/rs485:

381282 TSM:FAIL:RE-INIT
381284 TSM:INIT
381285 TSM:INIT:TSP OK
381287 TSF:SID:OK,ID=10
381290 TSM:FPAR
381308 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
383316 !TSM:FPAR:NO REPLY
383319 TSM:FPAR
383337 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
385345 !TSM:FPAR:NO REPLY
385347 TSM:FPAR
385366 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
387374 !TSM:FPAR:NO REPLY
387376 TSM:FPAR
387394 ?TSF:MSG:SEND,10-10-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
389402 !TSM:FPAR:FAIL
389404 TSM:FAIL:CNT=7
389406 TSM:FAIL:DIS
389408 TSF:TDI:TSL

• the data is transmitted out to RS485 (checked with another TTL-USB converter), hex:

01 FF 0A 58 07 02 0A 0A FF 02 03 07 FF 03 86 04

• the data is received from RS485 (same content) as above - DE/RE pins are controlled from ESP (at least Low State is set)
• RO is connected to RX pin at ESP32
• no response is comming out from TX pin (except junk at start)

The code:
Thanks in advance for hints!
Konrad

Yes, I realized that last Sunday. I went through the code of library. I had to switch to another project for a week or so, then I come back to it. Thanks!

Hi Cabat. Both checked. I wrote my own code to test it. I'm having my own working RS485 network at home already. I did it by myself and I'm pretty experienced in debugging ;). I want to switch to MySensors now due to more flexibility.
So to summarize:

• it is not a RS485 issue, tested,
• it is not a USB/TTL converter issue, tested,
• it is not an UART bitrate issue, not on the PC side at least,
• there is no difference if I use hardware or software serial - same content.

I have conserns about the Library. According to this page:
https://www.mysensors.org/download/serial_api_20
the typical frame sent by a node should be like this:
12;6;0;0;3;My Light\n
12;6;1;0;0;36.5\n
13;7;1;0;2;1\n

As you can see on picture in firs post, when I configured to use HWSerial for RS485 and DEBUG set ON, I shall expect both - Communication and Debug on the same line. Debug data is correct, but the frame is nothing like a text message - looks like the content is sent in HEX not ASCII.
I learned there is no encryption, so it is not an encrypted data I assume.

Hello. I'm using Arduino Pro Mini (atmega328) and checking one of basic examples (MotionSensorRS485). The gateway is connected via same RS485 converter. Unfortunately they do not communicate.
First I checked connection (direct TX-RX/RX-TX) connection - with failure. Then I took another USB/TTL converter to check what is on the output of softserial - and I found some kind of garbage data. It looks like wrong baudrate so I checked all "standard" speeds from 2400 up to 115200. (Configured to 9600).
Then I enabled DEBUG, enabled HWSERIAL and set to Serial. Both baudrates set to 9600. So I have now both, the communication frame and debug. See screenshot below.

When I disable DEBUG, only corrupted frame left:

The code:

//#define MY_DEBUG
//#define MY_DEBUG_LOCAL

// Enable RS485 transport layer
#define MY_RS485

// Define this to enables DE-pin management on defined pin
#define MY_RS485_DE_PIN 2

// Set RS485 baud rate to use
#define MY_BAUD_RATE 9600
#define MY_RS485_BAUD_RATE 9600 //19200 //57600 //38400 //9600
#define MY_RS485_SOH_COUNT 1
#define MY_RS485_HWSERIAL Serial
#define MY_SPLASH_SCREEN_DISABLED
//#define MY_PASSIVE_NODE
#define MY_NODE_ID 10

#include <MySensors.h>

uint32_t SLEEP_TIME = 3000;//+120000 // Sleep time between reports (in milliseconds)
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define CHILD_ID 1   // Id of the sensor child

// Initialize motion message
MyMessage msg(CHILD_ID, V_TRIPPED);

void setup()
{
    pinMode(DIGITAL_INPUT_SENSOR, INPUT);      // sets the motion sensor digital pin as input
    
}

void presentation()
{
    // Send the sketch version information to the gateway and Controller
    sendSketchInfo("Motion Sensor", "1.0");

    // Register all sensors to gw (they will be created as child devices)
    present(CHILD_ID, S_MOTION);
}

void loop()
{
    // Read digital motion value
    bool tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;

    Serial.println(tripped);
    send(msg.set(tripped?"1":"0"));  // Send tripped value to gw

    // Sleep until interrupt comes in on motion sensor. Send update every two minute.
    //sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, SLEEP_TIME);
}

An Idea? Arduino board is not corrupted, any short sketch with SoftSerial library works fine. Haven't checked MySensors with SoftSerial though. MySensors version 2.3.2. Checked on Arduino IDE and VSC.
Cheers!