Hi Brad, the Shari PiZero is in an aluminium case and is designed to run on the RPi Zero 2W.
See link:
I usually run the Node with the Hamvoip image.
The ASL3 image works fine though on this setup.
?
Running an AS3 image on a RPi Zero 2W as a ¡°radioless¡± Node runs around 40C.
I am thinking that the SA818 is generating a lot of the heat.
73 Mike