Hello @sbeeker

UIFlow2 doesn't use API keys. (Only UIFlow1 used them.) Are you sure you installed UIFlow2 firmware onto your M5Stack
device?

Use M5Burner from here to install UIFlow2 firmware (as an example for M5Core2) then use your browser to go to UIFlow2.

Thanks
Felix

Hello @YO3HJV

yes, I measured the current from the battery with this mA-meter and also used the AXP192 registers.

Thanks
Felix

Hello @YO3HJV

glad to hear you figured it out.

I was just setting up a test to see if I get this 400 mA power loop too with my M5Core2; but I do not.

When I set input mode I see about 82 mA drawn from the battery. When I set output mode I see about 99 mA drawn from the battery. (Note: an LED is connected to the Grove port.)

In case your still interested in my UIFlow2 test program. It's in UIFlow2 Project Zone called: M5Core2_Input_Output_Test_UIFlow2.4.6

Thanks
Felix

Hallo @Studi97

die M5Stack DAC2 Unit wird ueber I2C angesteuert und soweit ich weiss, unterstuetzen alle M5Stack Cores I2C.

Fuer folgende M5Stack Cores, die hier aufgelistet sind, gibt es Beispiel Programme.

Thanks
Felix

Hello @studi97

ja, ich denke, das ist machbar; allerdings hat M5Stack, soviel ich weiss, keinen wasserdichten Temperatursensor im Sortiment.

Moegliche Komponenten:

0-10V Steuerspannung: M5Stack Unit DAC2.

Wasserdicher Temperatursensor: DS18B20

Viel Erfolg!

Thanks
Felix

Hello @Shipbrook

M5Unified uses Wire1 for internal I2C and Wire for external I2C.

The example for SHT40 incorrectly uses Wire which causes issues as soon as other internal I2C communication is required, e.g. reading battery status.

The quick way to fix this is replacing Wire with Wire1 in below line:

//if(!sht4.begin(&Wire, SHT40_I2C_ADDR_44, SHT_SDA_PIN, SHT_SCL_PIN, 400000U))
if(!sht4.begin(&Wire1, SHT40_I2C_ADDR_44, SHT_SDA_PIN, SHT_SCL_PIN, 400000U))

The better way is to get the actual port used by M5Unified for internal I2C and the use that information:

i2c_port_t PortIn = M5.In_I2C.getPort();
TwoWire * WireIn = (PortIn == 1) ? &Wire1 : &Wire;
if(!sht4.begin(WireIn, SHT40_I2C_ADDR_44, SHT_SDA_PIN, SHT_SCL_PIN, 400000U))

Thanks
Felix

Hello @daniyyel

ah, ok. So the correct documentation is here.

Have a look at the code examples in Quick Start Guide to see how the M5IOE1 needs to be programmed to turn on power etc.

The function is called SIM7028_EN() and first turns on power then resets the modem.

Thanks
Felix

Hello @daniyyel

I guess you already read the official documentation here?

What have you tried so far? How do you power it? Could you share some code?

Thanks
Felix

Hello @ShawnHymel

IMU is on the topside of the board. See here.

Thanks
Felix

Hello @obolland

according to the schematic GNSS_TX becomes M5-RXD which is then available (depending on set dip switch) on GPIOs: 3, 13, 16, 34 or 35 which translates to pins 13, 22, 15, 26 or 2 on the M5 Stack bus.

BTW: Since you are not stacking the module you can set all dip switches to 'on' at the same time (if you like).

Note: I do not have the M5Stack GPS Module v2.1 so I cannot test this myself.

Thanks
Felix

Hi guys

it looks like another unfortunate regression. If I burn UIFlow2 firmware 2.4.2 onto my M5StamPLC I can control the relay and LED just fine.

Unfortunately the UIFlow2 firmware source code in github repository uiflow-micropython (at the time of writing this) is still on version 2.4.2. So it's impossible to tell what has changed between 2.4.2 and 2.4.3 causing this issue.

Thanks
Felix

Hello @jhfoo2

well, in my experience and with my M5PaperS3 it takes a couple of readouts (e.g. M5.update()) until the return value from the touch controller goes back to 0.

Please let me know if you find a more elegant solution.

Thanks
Felix

Hi @jhfoo2

well, in my case, without the 1 second delay the UI label wasn't fully updated on the display. Or in other words, ESP32 already went into light sleep while in the background the display was still finishing to update. (In your case it might be ok without the delay as the print() takes some time.)

Edit:
I think the reason for not getting the touched X, Y is that internally the wake-up code already read the touch IC registers and by doing so cleared the values. But I could be wrong about that as it is simply a guess.

I updated my example M5PaperS3_Light_Sleep_Test_UIFlow2.4.3 in the UIFlow2 Project Zone to read touch coordinates after wake-up from touch. It's a bit tricky as M5.update() needs to be called repeatedly until the number of touch points drops back to 0.

Thanks
Felix

Hello @Wambo6000

maybe you are hearing what's described on the product page here: "Abnormal Device Noise".

Thanks
Felix

Hello @jhfoo2

please have a look at the UIFlow2 Project Zone example I created: M5PaperS3_Light_Sleep_Test_UIFlow2.4.3

Thanks
Felix

Hi guys

I looked at some of the comments - they are all dated from last year. I did not see anything recent. That makes me believe that the commenting feature has been turned off.

Thanks
Felix

Hello @alex9

it looks like yes, GPIO0 is TX pin for RS485. See pinmap here.

The platformio.ini example can be found here.

Running a quick search I did not find an RS485 example, sorry.

Edit: Maybe try this RS485 library.

Thanks
Felix

Hello @JohnSal

I think you only need to add one RGB unit but with number set to 6 instead of 3.

Thanks
Felix

Hello @HappyUser

just curious, which SIM module did you settle on?

Thanks
Felix

Hello @hotellonely

yes, it looks like the drop-down box needs fixing. In the mean time you can use all GPOs on the 14 pin header via some custom code blocks.

I created an example in UIFlow2 Project Zone called M5CardputerAdv_ExtPin_Test_UIFlow2.4.2

Thanks
Felix