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Just posting the tl;dr at the top of the article: The Raspberry Pi Zero uses about 1/3 the power of the A+, or 1/6 the power of the model 2 B. This is pretty
by geerlingguy 11y ago
Just posting the tl;dr at the top of the article:
The Raspberry Pi Zero uses about 1/3 the power of the A+, or 1/6 the power of the model 2 B.
This is pretty awesome, as it's only about twice the power usage of a typical Arduino setup, so battery-powered embedded projects can start considering the Pi as an option. It helps, of course, that this is just $5!
I just got my mini-HDMI adapter in the mail today, so I'll be running a few more tests to see if there are any other major differences between the Zero, the model 2 B, and the A+/B+ (I currently use the A+ for most small projects right now, and the 2 B when I need a little more CPU).
- swiley 11y agoThe power consumption was the number 1 reason I couldn't use the PI in most of my projects so this is super exciting (the number 2 being cost).
- throwawydfje 11y agoif power and cost were 1 and 2 this is pretty good for you! Could I ask what the specific applications were? I'm very interested and wonder what other people have done. May have follow-up questions for you :)
- geerlingguy 11y agoI may also disable the HDMI interface as well, to see if it makes any real difference in power consumption. It's rumored to do so, but I haven't seen any proof that it helps. It can be disabled with the command: /opt/vc/bin/tvservice -o
- geerlingguy 11y agoCan't edit this post anymore, but I'll reply here: I just ran tests with HDMI disabled, and it looks like it does save ~30 mA. Running more tests, will leave a top-level comment with more notes soon.