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STM32WB15 / 55 soil moisture sensor

Kampi
Associate III

Hi,

I plan to design and build a soil moisture sensor for our plants at home, based on the STM32WB55 (I need ZigBee / Thread). But I want to build up a prototype by using my STM32WB15 nucleo board and some of these cheap Arduino Soul Moisture PCBs without components to get a sensor field.

I saw that STM is providing a touch middleware for buttons and I guess that this middleware can not be used for my purpose. Instead, I want to use the touch peripheral on the MCU and connect it to my STM32WB55 in the following way (the values are from an Application Note and TP1 is my sensor field):

Kampi_0-1695368234340.png

Does the touch driver support this scenario and which example can I use for testing?

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