You are right. It is my mistake, i will come back to modbus later and try again
Actually modbus TCP works normally, I got the problem only with serial modbus
Now I have other serius problem with domoticz and I cant to try sorry

I have same problem
I used lua one year but one week ago something happen and all my yeelight devices are not react to commands from lua events anymore
First I tried to interact with API trough node red - it works like before.
Second - I have downgraded my domoticz to release version - but still ...

I tried example script as well
#!/usr/bin/env python
from pymodbus.client.sync import ModbusSerialClient
client = ModbusSerialClient(method="rtu", port="/dev/ttyUSB0", stopbits=1, bytesize=8, parity="N", baudrate=9600, timeout=1, retries=2)
data = client.read_input_registers(0, 4, unit=12 ...

Every functions gives same error
I even tried to use discrete output slave, but error still the same

Have nothing here

Hi
Im trying modbus first time. I use domoticz v4.11024@Python 3.5.3
I just upload an example to my arduino and try to read something trough modbus RTU
#include <ModbusRtu.h>

// assign the Arduino pin that must be connected to RE-DE RS485 transceiver
#define TXEN 2

// data array for modbus ...

Earlier, I did without this script but now Im realy need it.
Finally I tested it, but it worsk too slowly
When I pushing the button fast several times (with 200-500ms pause) script can get summary time of several clicks and decides that is one long click.
Also im tried to delete logging but it ...

Hi everyone
I have aqara switch button (wireless) that can transmit only single presses. If I hold it pressed - the switch in domoticz also still turned on
But i need to detect this long presses for several seconds and, as bonus, detect also short presses if the button is released shortly.
I have ...

Some times after several hours without any activities domoticz loosing connection to wall switches. It just actually not working. If I switched on-off gateway light, wall switches start working again.

Domoticz beta, Debian.