I am looking to reduce the power consumption to a minimum on my RPi 3.
For my project, the Raspberry Pi Zero is not an option.
for now, I disabled Bluetooth and WiFi and made sure to kill some process when the PI is running on battery until the power comes back. however, I am having issue disabling USB port individually as I need to keep one running do you guys have an idea how I can do that?
I am also looking to throttle the CPU as the PI, will be just checking sensors and sending payloads to DB. what is a reasonable arm_freq?
I would appreciate any tips on how I can reduce my consumption. and how I disable HDMI, Audio and USB from config.txt instead of using a command like /usr/bin/tvservice -o