I'm attempting to use a bunch of OrangePi Zeros for a low power sensing application.
I have an OrangePi Zero 512M which I started developing on. It works extremely well and with the GPU/ethernet off and CPU/Ram underclocked it operates at about 30-34 degrees C, using only a tiny amount of power.
I recently got a bunch of OrangePi Zero 256M models, I've tried three of them now and (either a fresh install of the same version of Armbian or the exact same SD card as the 512M is running on) they all run around 55-60C at idle and overheat/freeze when attempting to install packages or compile.
Any ideas? Is there some setting I could have changed that lives on the SoC or flash rather than SD card that accounts for the lower power use?