Rikkert-RS / VenusOS-TemperatureService

Temperature and Humidity d-bus services for Victron GX
BSD 3-Clause "New" or "Revised" License
16 stars 8 forks source link

Negative temperature not reporting #12

Closed Julesmr closed 7 months ago

Julesmr commented 8 months ago

I hope you can shed some light on this. I have several DS18B20 sensors in my van on a Venus OS RPI. Whichever one I put in the freezer disconnects once its below 0 degrees C. Are you aware of such an issue. Thanks for your time.

GustavoGustik commented 7 months ago

I have the same issue. My DS18B20 has temperature range -55 to 125 °C and it shows this, when I put sensor to the freezer: image

Julesmr commented 7 months ago

Yes that's just the same as mine. I was looking at a posting yesterday day within a RasPI forum and they found a code error - It wasn't Venus OS though. I am going to check the code one evening and see if it's a similar issue. Or, it's a fake sensor that has limited range.

I will post any findings here.

AdventureHaus commented 7 months ago

Any chance you resolved this issue. With the sudden drop in temperature here in the uk ive noticed omy one wire sensors read ok when the temp gets to 0

Many thanks

Rikkert-RS commented 7 months ago

Hello everyone,

I think that with version 0.51 I have solved the problem with the negative temperatures not being displayed. Please update to v0.51. Attention, if you use a pin other than Pin26 then adjust it in u-boot/config.txt after installation.

Release v0.51 -> https://github.com/Rikkert-RS/VenusOS-TemperatureService/releases/tag/v0.51

best regards Rikkert-RS

AdventureHaus commented 7 months ago

Works perfectly thankyou 🙏 I use pin 23, I didnt have to edit the configuration.txt file after the update. The sensors read negative after reboot.

Again thankyou for your efforts on this

Screenshot_20231130-062453_Fully Kiosk Browser

GustavoGustik commented 7 months ago

Cool, I use different pin, so I will try it in the weekend. Many thanks for your effort @Rikkert-RS .

Julesmr commented 7 months ago

Looking forward to trying this. Thank you for your work.

Julesmr commented 7 months ago

Works perfectly 👍