- The easier solution is to set both Slaves at the same speed for communication: the data protocol for both SDMs has commands to change the speed of communication. The easier solution gave the best result. - Now I use one RS485 to USB converter for both SDM meters. (after reading the link of de ...

Indeed, I use the RPI3b+ as master for the SDM72 and SDM120 on Domoticz version 2020.2 (Debian desktop version through raspberry imager). The SDM72 with address 2 and SDM120 with 1. The SDM72 for monitoring the electric consumption of the unit outside of the heat pump and the SDM120 for the inner ...

Hello all, I'm trieing to get things work, but still got this errors. 2019-11-14 10:29:57.624 Error: (power Modbus) 'onHeartbeat' failed 'OSError'. 2019-11-14 10:29:57.624 Error: (power Modbus) ----> Line 131 in '/home/pi/domoticz/plugins/SDM120Modbus-Domoticz-plugin/plugin.py', function ...

With a breadboard two DS18B20 sensors were connected without any problem.
Connecting, in total, six sensors did only display the first two in Domoticz.
In the log file, the sensors weren't recognized.
Changing the resistor from 4k7 ohm to 10k ohm displayed all sensors in Domoticz.

Step by step check: - rpi pin 1 3v3 to resistor (4k7 till 10k Ohm) - also to redlead of sensor - other end of resistor to yellow on sensor - other end of resistor to GPIO4 pin 7 - black lead to rpi ground pin 6 or others ground pins As you seem to have it working this way, next.. Message not 'yet ...

Hardware: Raspberry Pi3 Domoticz: Version: 3.5877 After reading and following several tutorials on howto connect a 1Wire DS18B20 sensor to the GPIO of the Pi nothing happens. As I understood the sensor should be found automatically in 3 or 2 wire (parasitic mode) connection. Tried: - Installing the ...