Configuration of one-wire sensors

[FransOv]

I see in the settings_ini.py that you support one-wire temperature sensors. I would like to install two of them to measure return temperatures from the heating circuits. Can you explain how to connect and configure the sensors?

[philippoo66]

sure!

I put this up in Wiki https://github.com/philippoo66/optolink-splitter/wiki/180-Using-1%E2%80%90Wire-Sensors . If during setup you experience something needed to be added, please do!

[philippoo66]

@FransOv did it work for you?

[FransOv]

I ordered some sensors, will try as soon as they arrive. Your description is clear. I'll keep track of any additional info that may bee helpful.

[FransOv]

Hi Phil,
It's going to take awhile. I use an Orange Pi3 with Ubuntu instead of a Raspberry Pi and that unit has some problems detecting the 1wire sensors. I'm still hoping I can solve it, otherwise I will have to get an original Raspberry.

Frans

[FransOv]

@philippoo66 Hi Phil,
One-wire sensors are working OK. Adding them to the pollings was easy, two minutes work.
Getting the Orange Pi 3 LTS to recognise the sensors took two days. The raspi clone has a diffferent way of defining the sensors and also differs in GPIO assignments. The software is based on the Armbian project. That means you have to define the sensors in orangepiEnv.txt instead of config.txt, furthermore the docs tell that the 1-wire-gpio default is PD4, the software actually uses default PC9 while the actual designation of physical pin 7 turns out to be PD22. I've been scrolling a significant portion of the internet before that all became clear. With all the experiments I also mangaged to corrupt the file system so I had to do a complete reinstall and reconfiguration. That is actually a good thing because it got rid of all remnants of unsuccesful attempts to configure.