Mini E-Paper : Unbelievable Battery Life
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- čas přidán 18. 04. 2024
- You don't see this very often on this channel: an E Ink or e-Paper display. It's the smallest I could find. If you remember in the past, I used some bigger E Ink displays like the Lilygo T5, M5Stack Epaper, a soldered 6" display, and a soldered 10".
E Ink displays are usually bigger, and the reason why I don't use them more often is that they are slower than LCD or AMOLED displays. But they have they place in game.... stay tuned and you will find why!
🔗Links:
🔧Parts:
LilyGo Mini E-Paper : www.lilygo.cc/6Sq8kq
🛠️CODE: github.com/VolosR/epaperClock
RTC library: github.com/adafruit/RTClib
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PATREON: / volosprojects
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#esp32 #espnow #iot #arduino #epaper #eInk - Věda a technologie
Love your videos! You inspired me to get a T-display-s3 and I love it!
I'm so glad! Thank you :)
I love your projects. I learn so much from them and I wish I had your ideas. Thank you for releasing these videos and the code to help us all learn.
The board is awake for 2s, so this results in 28 mA during 2/60 of the time and 1.25 mA during 58/60 of the time. So this averages out to a current of 2.14 mA. 500/233 is 233.463 hours or 9d17h27m but this will more likely be 7d18h46m due to the fact that the battery reaches a voltage below 3.3V when discharged 80% and most likely the board will then stop working
I also think it will be 7 days max. But we will see.
Love your stuff
hi volos, could you make a project for example a flipper zero with your own hands, you just have a huge talent in terms of technology, thank you if you read😃
Shame these displays are relatively expensive. Would have been nice to have used them in a project I have where I wanted to keep a count, and status flags.
Adorei a ideia, já vi algumas etiquetas de preço, com essa tecnologia, será que podemos colocar um esp32 com uma etiqueta destas???
How do you do battery level monitor?
What I'd love to see is this concept, but in a full color T3 E-Paper version.
I have done ESP32 clocks using the internal RTC and I update from NPT server once or twice per day to keep accurate.
Yes, i also use same system, bu never on battery.
Volos, shouldn't a version with T-U2T last longer, considering USB chips often draw batteries when in sleep - i know lilygo has become very good at making low power devices, and it's possible they've solved this problem (looks like they managed it on some of the esp32 boards).
When it comes to arduino, and standard developer esp8266 modules, I have noticed the usb chip often takes a lot of battery (that's why the arduino pro mini is an excellent for low power option).
I'm really interested to see in how long the battery will last and whether the USB chip will use the battery during the sleep cycle.
_P.s. I recently received the M5stickC plus2 that I ordered after your video, but I didn't have a chance to investigate the power consumption._
1.2mA when sleeping?
How much is the display supposed to draw when in standby mode?
seems like the sleeping current should be able to be less than 1.2 ma.
12 days?
Isn't 1.2mA sleep current also quite a lot to be called as low power device?
Yes, it's power hungry. I don't know if it's normal for that display or it's a problem with the microcontroller's step down converter not being an ultra-low quiescent current one.
500mAh = 30000mAm
28mA*1s+1.25mA*59s=28mAs+73.75mAs=101.75mAs = 1.7mAm
30000mAm/1.7mAm= 17690 times
17690 times 1m = 295h = 12,3 days.
As it will take less than 1 s to wake up en go back to sleep, it will be longer then 13 days but no more then 17
Question is : is the battery really 500mAh and won't it stop if battery gets to low in voltage for ESP32 (before empty)
how about running this project without RTC ? how big time shift there will be after for example 24hours ?
maybe few minutes, i dont know, i used built in rtc long time ago this way, but it was not accurate. Built rtc is fine if you set it every few hours for example using wifi, but wifi is out of question for this project.
I use GPS time as well.
Very strange that Lilygo not install RTC oscillator on GPIO15 and GPIO16. Maybe this is a kind of conspiracy?
16 Days😀
odlicno ali samo za ljude koji dobro vide
pozdrav za tebe i za mojeg novog kolegu pcelara
ovde jutros bilo nesto ispod nule tako da ce ova godina biti reko bih losa
nadam se da greshim
svako dobro
Kod nas je sve procvjetalo, i prije par dana tuca pala prvo i zatim snjeg, sada na nijednoj vocki cvjeta nema. Kazu da ce bit katastrofa za pcele ovdje.
@@VolosProjects nazalost i ja mislim isto a jedini profit mogu imati samo uvoznici voca i povrca
Pozdrav
18 days
57 days
we will see :)
I hope it will be that long!
@@VolosProjectsDid you code something to monitor the battery level so that once it gets below a certain voltage, the display can warn you? Perhaps clearing the display and push a dead battery symbol to it, the set the S3 to totally shut down at that time, no longer consuming any power at all....
Possible??
74 дана
13 days, 9 hours, and 37.5 minutes.
Nice calculation , but you never know wit thase batteries, but i hope it will last more than 10 days :)