- Tue Feb 10, 2015 7:44 am
#9387
How did you power both the esp8266 and ws2812 with a battery in your previous wifi cup video? From the video it looks like you just plugged the usb to serial converter into the battery, but have you tried connecting it directly to a battery?
From my research step-down converters are rather inefficient (wasted haet and whatnot), so I should be using a step-up converter. I'm trying to power both the esp8266 and a 1m 60 pixel ws2812 (3.6A) via batteries, and I'm pretty lost as to how to wire this thing. I'm thinking I could use two step up converters in parallel from 2 AA batteries, with a 5v to the strip and a 3.3v to the board, with something like these:
https://www.pololu.com/product/2565
https://www.pololu.com/product/2563
I could also run 4 AA batteries with two step downs, which would be cheaper, but obviously much more inefficient. I want to keep price as low as possible (the boost converters basically double the cost of the project), but I also want the batteries to last as long as possible.
What do you think?
From my research step-down converters are rather inefficient (wasted haet and whatnot), so I should be using a step-up converter. I'm trying to power both the esp8266 and a 1m 60 pixel ws2812 (3.6A) via batteries, and I'm pretty lost as to how to wire this thing. I'm thinking I could use two step up converters in parallel from 2 AA batteries, with a 5v to the strip and a 3.3v to the board, with something like these:
https://www.pololu.com/product/2565
https://www.pololu.com/product/2563
I could also run 4 AA batteries with two step downs, which would be cheaper, but obviously much more inefficient. I want to keep price as low as possible (the boost converters basically double the cost of the project), but I also want the batteries to last as long as possible.
What do you think?
