I bought a couple of M5Stick C Plus a few months ago and now I want to put them into operation. Unfortunately, the battery does not charge. A 68 ohm resistor between bat and 3.3 volts does not help either.
Does anyone have a tip on this?
The voltage at PIN BAT is 2 mV. When I connect a LiIon battery there, it will be charged.
Looks like a cold solder joint. Is something like this known. It is so with all 4 tested devices.
I have accessed the M5Stick C Plus display in Micropyton with lcd.print() in the past. Suddenly this does not work anymore.
from m5stack import *
from m5ui import *
from uiflow import *
lcd.clear()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'lcd' isn't defined
Can someone explain me how to use the internal M5Stack Micropython commands again.
As IDE I use Thonny.
After a restart of Thonny, it works again.
The tip has hit the problem. I have implemented a query of the key A in the callback routine after 1 ms. Only if the key is still pressed the routine is executed. Otherwise nothing is done. Now there are no more key presses from the ghost.
Thanks
@felmue
Thank you for the information.
I will have a look at the links. At first glance it might fit.
Peter
I discovered by accident that the M5Core sends out a command via MQTT, even if the associated button was not pressed at all. Has anyone ever observed something similar. What can be the reason. It only occurs with key A.
I have written a program to control my marquee in UIFlow. Here is the resulting Micropython code:
def buttonA_wasPressed():
global temp, prog_name, lfd_nummer, version, data_update, balkon, wohn_zimmer, testraum, message
m5mqtt.publish(str('whg/balkon/markiese/strg'),str(lfd_nummer))
lab_status.setText(str(lfd_nummer))
lab_status.show()
lfd_nummer = (lfd_nummer if isinstance(lfd_nummer, Number) else 0) + 1
pass
btnA.wasPressed(buttonA_wasPressed)
Unfortunately, the indentations are swallowed. Is there a way to format code?
Peter
alternativ kannst Du auch bei [https://www.distrelec.de/de/manufacturer/m5stack/man_msa?no-cache=true&page=1&pageSize=50](link url) bestellen.
Mit UIFlow 1.8.4 habe ich auch keine Probleme. Der Prefix mqtt/ ist bei mir nicht erforderlich. Lag wohl an der Version der IDE.
@world101
Then M5Stack must have taken over the problem.
I will try again with replacing "\\n" with "\n" with the appropriate text block. But still got to it because my computer had to be reinstalled. I will report back.
I want to output multiline text. If I enter the text as a literal in the properties of a label, the line break is executed correctly. But if the text with the line break is in a variable \n becomes \\n. This means that the line break is no longer executed. Is this behavior intentional?
I think it is a bug that should be corrected as soon as possible.
Thanks a lot
@iamliubo
Thank you :)
I just noticed that it is already implemented. Thank you very much for that. It helps me a lot.
@iamliubo
Thank you for the information. I was aware of the address change in the hardware. That a corresponding adjustment in the UIFlow Ide is planned fills me with joy.
@peter Thanks for the implementation !!!
For some units the I2C address can be changed, so that several identical units can be controlled via one I2C bus. Unfortunately I have not found a way to change the address in UIFlow or micropython.
With the PaHUB this can be avoided, but how can I control several PaHUB?
I am very reluctant to switch to the Arduino IDE. There it seems to work. Why not in Micropython?
@felmue
Please include the use of the PaHUB in the next release of the M5Stick C/plus and ATOM.
Peter
Hallo @papanoel ,
I had the same problem on M5Stck C. In this link https://community.m5stack.com/topic/2852/not-possible-to-connect-pa-hub-on-m5stack-core2/6 I find a workaround for this problem. It works fine: https://www.peters-bastelkiste.de/m5stick-c-und-atom-units-hinter-pahub-betreiben/ and https://www.peters-bastelkiste.de/m5stick-cplus-als-mehrfach-multimeter/ (in german).
I hope in the next revision this will be resolved.
Graetings Peter
Eine schöne Sache. Funktioniert aber wohl nur mit der Arduino IDE?
The Unit PaHub is available as a connection for the Core models in addition to the pins. Unfortunately, this is not the case with the M5Stick C and ATOM models. I ask to introduce this possibility also with these models. I need it urgently!
The power supply problem with the M5Stick C models is known to me. But it can be solved easily with side cutters, Soldering iron and USB charger bypass.
Peter Stöck
Translated with www.DeepL.com/Translator (free version)
Here a link to my usage: https://www.peters-bastelkiste.de/m5stick-cplus-als-mehrfach-multimeter/ (only in german)