@felmue Thanks for your reply. I found the table below on the official M5Stack (https://docs.m5stack.com/#/en/unit/pbhub?id=pinmap) and started from there. That's why I thought all ports had the same functionality ....

0_1617097247162_4ac4b932-044b-4d40-ac0b-9f82a9bf5dee-afbeelding.png

Hello @madaerodog

no, afaik the display doesn't have any internal memory that would need erasing.

I am afraid something got broken or dislodged within your M5Core2, but since you wrote you won't be able to return it, the only thing that comes to mind you could try is to remove the small little white board labelled CORE 2, unscrew the bottom and disconnect the battery. Then try w/o battery and only with USB plugged in.

Note: be careful when removing the bottom as the battery is taped to the bottom but plugged into the main board.

Good luck!
Felix

Same here.

I tried this and this keep displyaing eCO2 400...
Any idea?

from m5stack import *
from m5ui import *
from uiflow import *
import unit

setScreenColor(0x111111)
tvoc0 = unit.get(unit.TVOC, unit.PORTA)

CVO = None
MAX = None

H2T = M5TextBox(53, 19, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
H2 = M5TextBox(0, 19, "H2", lcd.FONT_Default, 0xFFFFFF, rotate=0)
BT = M5TextBox(21, 48, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
TVOCT = M5TextBox(63, 80, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
BTVOCT = M5TextBox(72, 112, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
eco2T = M5TextBox(63, 136, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)
B = M5TextBox(0, 48, "B.", lcd.FONT_Default, 0xFFFFFF, rotate=0)
TVOC = M5TextBox(0, 80, "TVOC", lcd.FONT_Default, 0xFFFFFF, rotate=0)
BTVOC = M5TextBox(0, 112, "B. TVOC", lcd.FONT_Default, 0xFFFFFF, rotate=0)
eCO2 = M5TextBox(0, 136, "eCO2", lcd.FONT_Default, 0xFFFFFF, rotate=0)
Ethanol = M5TextBox(0, 173, "Ethanol", lcd.FONT_Default, 0xFFFFFF, rotate=0)
EthanolT = M5TextBox(62, 173, "Text", lcd.FONT_Default, 0xFFFFFF, rotate=0)

MAX = 1400
tvoc0.set_iaq_baseline(35187, 35502)
while True:
H2T.setText(str(tvoc0.H2))
BT.setText(str(tvoc0.get_iaq_baseline()))
TVOCT.setText(str(tvoc0.TVOC))
BTVOCT.setText(str(tvoc0.baseline_TVOC))
eco2T.setText(str(tvoc0.eCO2))
EthanolT.setText(str(tvoc0.Ethanol))
if (tvoc0.eCO2) > MAX:
M5Led.on()
speaker.sing(196, 1/2)
M5Led.off()
wait_ms(2)

@happyuser thanks to Felix : solution can be found in the other thread about M5Stack LAN W5500.

@hazo
To solve the problem I connected the two internal i2c pull-up resistors to 5V. You need steady hands to cut the copper layer between R3 and C1.

When done, solder a wire between R3 and 5V (on connector J1).
That's all ;-)0_1614856917200_Modified ADC-Unit.jpg

Hello @teastain

getting it to compile is probably as easy as replacing #include <M5StickC.h> with #include <M5StickCPlus.h>. The bigger issue is the larger screen size which will need to be adapted properly. If and when M5Stack engineers will fix that I have no idea. Sorry.

Thanks
Felix

I think my proble0_1614515966296_2tof.PNG m is the same

This is available in the TFT_eSPI base class to canvas, but is not exposed to us.
The following seems to work:

int height = ((TFT_eSPI&)Canvas).fontHeight();

@powersoft, @ajb2k3
Thank you both for your answers.
The board manager url found on https://docs.m5stack.com/#/en/arduino/arduino_development is apparently the old one and still does not contain the M5Paper board, but through the youtube video powersoft recommended I was able to find the correct url and everything works now as expected :)

The HX711 and loadcell don't necessarily return a linear a value. It is more likely to be a curve.. the nature of materials.
You can create a variable and factor all your read values by this amount. For example in your case 500/268 = 1.87... So assign this value to your variable and multiply you readings by this amount. This will be approximate and it will vary for different weight ranges but you can keep refining it until you are happy. You can extend this method over various weight ranges and write conditional statements to apply different corrections for different ranges. Or if you have the smarts you can write a formula for the curve and apply it to your read values.

Hey I am thinking about buying the m5paper and I hope someone here can answer my question.
How much current does the board use in sleep?
Or maybe the more important question is the following.
If I want to develop something like a weather station. And update the display once every 10min, 30min or every hour. And between that the device is sleeping. How long could the battery last?
I don't want exact figures. What I need is some rough estimate like 1week, 1month or whatever.
Would be great if someone knows more and can help

@kevindtimm There is such a thing, all of the sketches appear to be on the M5Paper github pages