Notifications
Clear all

WittyPI L3V7 + RS485 CAN HAT (B)

6 Posts
2 Users
0 Reactions
127 Views
(@konstantinos-belivanis)
Posts: 15
Eminent Member Customer
Topic starter
 

Hello all,

I want to create a remote device that will be able to get data from this sensor every 30 minutes and upload it to IoT central. 

https://www.alibaba.com/product-detail/RS485-DIGITAL-MULTI-LAYERS-TUBE-SOIL_1600593359628.html?spm=a2700.shop_plgr.41413.21.5d257121aeHbfE

This is why I'm using WittyPi to send device to sleep and wake it up.

Do you envision any issues with the utilization of those two stacked HATs? Any other solution is most welcome!

Thanks a lot for the answers!

 
Posted : 10/11/2025 11:05 pm
(@admin)
Posts: 691
Member Admin
 

The link you provided does not link to a HAT, it is just a sensor.

 
Posted : 11/11/2025 7:38 am
(@admin)
Posts: 691
Member Admin
 

Please read section 15.4 on page 44 in the user manual first.

 
Posted : 11/11/2025 7:40 am
(@konstantinos-belivanis)
Posts: 15
Eminent Member Customer
Topic starter
 

Correct. I want to use the HAT in the title to connect the sensor of the link.

My issue with pg 44 of the user manual is that I can't say wether there is going to be an I2C conflict, that's why I'm asking the community.

Thanks again!

 
Posted : 11/11/2025 11:00 am
(@admin)
Posts: 691
Member Admin
 

@konstantinos-belivanis You need to check the I2C address used by the other HAT (if exists), if it is the same as what Witty Pi 4 L3V7 uses (0x08), then there is an I2C conflict.

The chance is rather small, but you still need to check.

If you are expecting someone who knows that RS485 HAT will tell you the answer directly, you need to provide the information of that HAT (not the sensor).

 
Posted : 12/11/2025 9:49 am
(@konstantinos-belivanis)
Posts: 15
Eminent Member Customer
Topic starter
 

Thanks a lot for the prompt response!

Here's the HAT information

https://www.waveshare.com/wiki/RS485_CAN_HAT_(B)

 
Posted : 12/11/2025 2:05 pm
Join Waitlist We will inform you when the product arrives in stock. Please leave your valid email address below.