@os88 said in 5V stops working m5stickc:
//#include <M5StickC.h>
I only had the problem, when i uploaded my code the StickC was on. If i turned it off, i was not able to turn it back on with the power button.
Just like you i had commented out the m5stack.h code.
//#include <M5StickC.h>
Have you tried it when the code Is not uncommitted?
Is it the 5volt at the grove connector. Or the unit side?
Project target: a simple page turner that can work with sheet music apps like PiaScore and mor on an iPad mini 2.
Why: my sister in law was searching for a simple pag turner with the options to see for more features for the band. By connecting more page turners in groups.(not yet implemented)
Requirements:
Things used:
M5stack Atom Lite
M5stack tailbat
2 footswitches
Small piece of pcb
Headers
And 2 small cables with connectors
And a 3d printed case.
I’m writing the steps from the download the setup of the software (on windows) coming soon!!
Result:
I did not use the 2 button option via the groove connector.
Because of the voltage split. It will consume a small bit of current. But everything i could save is for the battery livespan.
So the esp is running at 160Mhz and not 240. I tried 80, but the consummed current was below the 50mA and the tailbat will turn off after 30 sec.
This was the initial pcb for testing.
But because i only need 3 pins i made a new one. ( post will be updated later)
I did some investigation.
If the Atom Lite or Atom is downclocked to 80MHz the tailbat will turn off because of the to low power consumption .
If I change it to 160MHz, it will stay on.
So how can i alter the tailbat to support the Atom with low power consumption?
I've a Atom Lite and the TailBat.
I'm programming the Atom Lite with arduino ide.
the only function (in my code) that I'm using is Bluetooth HID.
after about 35 seconds the tailbat is shutting off. because the current consumption is not high enough.
If I use more features the tailbat stays on.
what can I do the keep the tailbat powering the atom lite?
@kees i did not invent it myself... i did find the sugestion for it on the website bleow. It is tip 4.
https://www.savjee.be/2019/12/esp32-tips-to-increase-battery-life/
And now is it time to reset your password on the community site
I want to thank @m5stack for tacking action. To setup https on the community site.
@crami25 i have 2 of them.
Downside is that they need to be removed for charging. Second is, by bypassing the voltage regulator, you will nat be able to use the voltage. So an wxternal battery status indicator is required.
@crami25 thanks for the advice. I've used branded and unbranded powerbanks. The modern powerbanks require a minimum current consumption. the older don't.
@Kees I've build a page turner based on BLE. This is for an iPad Mini 2 sheetmusic. so about 4 pushes per minute. with the LCD on.
In the code I use the front button to set the brightness. (but still on) I also use the screen as battery indicator.
I'm also running on 2 cores. I'm still figuring out how to get some parts to run on one core and the other part on the second core.
the other thing I've done is to change the corespeed. to 80Mhz. instead of the 260.
@crami25 the question was not related to the M5Stack but to the M5StickC. And most powerbanks will only work for a few minutes. this because the current is to low and the powerbank will cute off the power.
The 18650C will provide 3.7V direclty to the LDO regulator. to convert it to 3.3Volt.
With a powerbank you will loose power. from the step up converter. 3.7V to 5V and later a step down, from 5V to 3.3V
@ajb2k3 Sorry, I thought you were located in the Netherlands.
@Kees You need to have the M5Stick in place to charge the 18650C.
the 18650C will pass the USB-C 5V to the M5StickC. According to other posts are the internal Bat and the 18650 in paralel. I do not know if there is a safety system between the internal Bat and the external Bat.
the internal Bat is 80mAh (from version 2020.3 it is 95 mAh) the project that I work on runs about a bit over 1 hour. I was not able to completely drain the external bat. so after 16 hours I stopped my test.
so the external bat is 2000mAh that will be for me about (2000/80) 25 hours + 1 hour on the internal battery. after 1 year I will lose about 20% of the capacity. so that will be about 20 hours.
You are waiting on a 18650C?
The store around the corner do have them in stock.
Make sure that you have the M5StickC with the metal inserts, otherwise you are not able to keep the stick in place.
Better to change your password everywhere except here. And wait till it is set to HTTPS
I’ve not yet tested. But I’m building a BLE macro keyboard with it. On the internal M5stickC with lcd on i’ve got about 1 hour running. With no deepsleep. And I assume you can only charge it with the stick in place. (Not yet verified) . I will do my measurements tomorrow
I've been short in this community forum. But as of day 1, I've been asking myself why the forum is not on HTTPS.
This because all generated accounts do sign in with the password send over the internet in clear text.
I’m one of the lucky ones that has that webshop that sells them, only a few block away. It is cheaper than Conrad. But they ship from the Netherlands to customers in Europe.
Their website is dual language. And the link is provided above. It is Tinytronics.
But you can also do pickup. But for you the travel would be more expensive than for me.
It is only a 5 min walk.
If I read it correctly. Is the mega328 on the module stepper flashed with version 0.8c
Source of the information is on Github
If you follow the link below and look at line 28.
https://github.com/m5stack/stepmotor_module/blob/master/Firmware for stepmotor module/GRBL-Arduino-Library/settings.h
@grafolabs
I think this is the video
https://youtu.be/nMsCwqCE5c8
It is clear in explaining the PaHUB with UIFlow