A deep dive into Raspberry Pi Zero 2 W’s power consumption
When I completed my review of Raspberry Pi Zero 2 W, I mentioned I would test the power consumption of the board later. It took a while, but I’ve finally come around it using Otii Arc from Qoitech and Otii software to provide some pretty power consumption charts, and even energy consumption. Since the Raspberry Pi Foundation recommends a 5V/2.5A power supply, I’ll first try to get as close as possible as 2.5A, then I’ll go through tricks to reduce idle power consumption to less than 75 mA / 375 mW, and finally check the energy consumption under various CPU core count and frequency.
I started with the latest Raspberry Pi OS Lite “BullEyes” image and connected my Raspberry Pi Zero 2 W board to Qoitech Otii Arc tools as shown below. It used to cost around $500, but now pricing starts at $699, and it’s a great tool for people developing battery-powered devices, and I admit it’s a bit over the top, but the purpose of this post, but it still does the job.
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