Back then when I built my RS485 network with normal ethernet GW and domoticz I had to define static node id's for all the nodes(except GW) to get RS485 network working. Not sure if thats the case anymore.

#define MY_NODE_ID 123

Perhaps this could help?
https://github.com/domoticz/domoticz/issues/276

or this:
https://github.com/domoticz/domoticz/pull/847

Lets link this topic: https://forum.mysensors.org/topic/9012/anyone-tried-the-creality-cr-10-3d-printer

How about non blocking interrupt driven stepper library? For example: https://github.com/bjpirt/HotStepper

Take a look at: https://github.com/domoticz/domoticz/blob/a668baf917333e93f92dd9bb7c77eef8e0bc4ce4/hardware/MySensorsBase.cpp#L486

//V_TRIPPED
//V_ARMED
//V_LOCK_STATUS
//V_STATUS
//V_PERCENTAGE
//V_SCENE_ON
//V_SCENE_OFF
//V_UP
//V_DOWN
//V_STOP
//V_RGB
//V_RGBW

@sindrome73 said in Request data from Domoticz:

Hello
So if I understand, a node from domoticz can only ask the status of a sensor connected already him, and not the status of other nodes of the network!
So it is impossible for me to create nodes / displays to display the status of other sensors in the network.
The only way is to use some old mobile phone as a display point

You can directly request data from other node(nothing to do with domoticz).

From documentation: https://www.mysensors.org/download/sensor_api_20#requesting-data

Requests a variable value from gateway or some other sensor in the radio network.
void request(uint8_t childSensorId, uint8_t variableType, uint8_t destination);
childSensorId - The unique child id for the different sensors connected to this Arduino. 0-254.
variableType - The variableType to fetch.
destination - The nodeId of other node to request data from in radio network. Default is gateway.

Other way is that you can present some text sensors in your "screen" node and update those from scripts at domoticz.

Are your lights and temp sensors MySensored or would you like to get status from some random Domoticz devices?

Would this help? https://forum.mysensors.org/topic/6502/how-to-use-softwareserial-library

@wallyllama

another is having each node listen before transmitting

How would you describe this functionality in MySensors rs485 code?
https://github.com/mysensors/MySensors/blob/f5ed26c778c18107d1516bd86704f8c8f99ff571/hal/transport/RS485/MyTransportRS485.cpp#L246
If I'm reading the code correctly it is exactly reading the bus and making sure no other node is sending before sending anything.
The place where collision can happen is those 5 microseconds what the node is waiting to get driver tx enabled pin up.

So the collision avoidance is already there. So what MyS R485 transport is missing is collision detection and recovery from collision.

CAN bus( a mutli master 485 comaptible bus) is another option.

Its disadvantage is small payload size.

@nofox Its quite like how the Modbus works. By polling.
I think there is some better ways to do that. Check these out from google:

• RS-485 Token ring
• uLAN
• RS-485 RRP (Round Robin Protocol)
• CSMA/CA

How about presenting additional S_BINARY/V_STATUS in your node. In domoticz when text changes set this to ON/OFF. From there you now its time to request text from domoticz.

@dbemowsk said in Domoticz help using V_VAR1 and S_CUSTOM:

So my questions are, first, are the V_VARx variables working? And if they are working, are they accessible from a device like the irrigation node?

There is the current state of V_VARx variables in domoticz: MySensors set and send V_VAR

And there is what you can store/request: hardware/MySensorsBase.cpp#L2241

@bbrowaros It has happened to me so many times that it was easy to guess :D

@bbrowaros Have you enabled: "Accept new devices" from settings?

Cannot get the point what you exactly mean but I think you should check for what child the message is for:
if(message.sensor == CHILD_ID_aeg2 && message.type == ...) { ..do suff.. }

@phil2020 try this in your sketch: #define MY_TRANSPORT_WAIT_READY_MS (200ul)
Its the "timeout" for waiting connection to gateway. Default 0 -> wait infinitely(?).

@mick Its still in use. I had one bus freeze since last "update post".

The gateway did pull the line up to 190mV what seems to be enough to get traffic frozen. After "reboot" of the gateway it was still pulling the bus to 160mV so it must be some solder on wrong place and bad chinese pin headers or protoboards.. I have to rebuild the "motherboard" of the gateway..

@dbemowsk there is the same with tensioning with motor: Tevo Tarantula Single Motor Dual Z Axis

@dbemowsk There is one example: Anet A2 dual Z single motor

@neverdie said in Anyone tried the Creality CR-10 3D printer?:

According to this review of a different printer, the Anet A8's bed doesn't get hot enough to print ABS:

Yes, the heated bed is bit weak but I think its quite weak on most sub 500€ printers having bigger beds than 200x200mm.
There is some help for the problem. See: anet/a8/improvements/understanding_my_heatbed

So you will be wiring all the switches with "0-5v line" to mega? Then just digitalRead all the pins on loop and compare with previous state. Simple as that..
Perhaps some (de)bounce library could be helpfull since the switches can cause a bit of bounce.

Btw. there is also a library to get interrupts from more pins but it wont help too much with Mega(from only 6 to 16 pins interrupt)..
https://github.com/NicoHood/PinChangeInterrupt