====== Steps to install an Iono Pi======
This particular model is a IPMB20RP.

Following the instructions in the kernel module github page, all the examples seem to work. The kernel module is compiled for a specific kernel. If apt update/upgrade installs a new kernel, how should the module be recompiled?

Chatgpt gives some hints.
First, it says I should install raspberry pi headers:

''sudo apt install raspberrypi-kernel-headers''

Then, it suggests putting the kernel module in a subfolder ''extra'' because that is a common folder for third party modules.

====== Usage ======
Reading the temperature from the file system seems to work:

    $ cat /sys/bus/w1/devices/28-0316458506ff/temperature 
    23875

The overlay for the onewire sensors seems to be called dtoverlay=w1-gpio








====== Links ======


[[https://sferalabs.cc/product/iono-pi/|Iono Pi]]

Schematics: {{ :projects:electronics:plc:ionopi-20-sch.pdf |}}

User guide: {{ :projects:electronics:plc:ionopi-20-user-guide.pdf |}}

Kernel module: [[https://github.com/sfera-labs/iono-pi-kernel-module|]]

Onewire discussion: [[https://forums.raspberrypi.com/viewtopic.php?t=77611&start=50|]]