I have a couple of lolin boads as well I am using for development. The firebeetle board that is linked is hands down the best esp32 board due to the voltage regulator.
In hibernation with only the RTC clock running I believe it only consumes 0.008mA which is coin cell worthy with a < 1% duty cycle. With the wemos boards my lowest is around 3-4mA which is still fine but considering price is the same I would recommend the firebeetle ones.
Quick question: where are people sourcing their e paper displays? Everytime I think of picking some up I always feel either I'm paying too much or getting too little guarantees.
personally, Digikey/Mouser if I'm scoping and need to know a specific stock count ahead of time, paying the premium for some future-proofing makes sense to me in that regard
for prototypes/one-offs, aliexpress or ebay are fun if you ever only need one (haven't had a DOA yet), and if you email the company directly they may get back with their 'secret menu'
Maybe I'm out of the loop but I never heard of the term energy-autark. Having looked up the definition, it means self-sufficient. Is there a reason for the use of the term autark?
Autark comes from ancient greek αυτάρκης (same in modern greek) which is made up from two words αυτός (he) & αρκώ (v) which means suffice, so self-sufficient.
I wasn't aware that this word existed in English but I love coming across words like these that I am not aware of, though immediately understand.
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[ 2.4 ms ] story [ 55.9 ms ] threadI would suspect that adding a battery would allow to support higher current spikes, which might enable it to drive a bigger display.
Also since this is e-paper, maybe you can just update the display incrementally.
According to the schematic at at least. There is something that kinda looks like a battery in the images.
have to charge mine every few months but also display a lot more information
except for the wemos lolin c3 pico, very tiny esp
In hibernation with only the RTC clock running I believe it only consumes 0.008mA which is coin cell worthy with a < 1% duty cycle. With the wemos boards my lowest is around 3-4mA which is still fine but considering price is the same I would recommend the firebeetle ones.
This project by the same author appears to be the same but newer?
for prototypes/one-offs, aliexpress or ebay are fun if you ever only need one (haven't had a DOA yet), and if you email the company directly they may get back with their 'secret menu'
Hint: click Application, then e-books.
It's a well defined word. Nothing wrong with using it.
I wasn't aware that this word existed in English but I love coming across words like these that I am not aware of, though immediately understand.