Posts made by felmue

Hello @Kenzo

I think you might have misread my post. I do not have a Tube Pressure unit so I cannot test this case, sorry.

Thanks
Felix

Hi guys

I tested M5Tab5 (running UIFlow 2.3.1) with all the units I have available and most of them worked ok.

Note: I also got the i2c driver install error, but it didn't cause I2C to actually fail.

GPIO units

• SSR - ok

I2C units (bus speed 100k)

• Env III - ok
• Env IV - ok
• ExtIO2 - ok
• Color LCD - ok
• OLED - ok
• PaHUB - Env IV - ok

I2C units (bus speed 400k)

• PbHUB - ok
• 4Relay - ok

Unit Gesture and AMeter did not work for me with either bus speed 100k or 400k. M5Tab5 seemed to hang in setup and a hard reset was required.

Thanks
Felix

Hello @foofera

hmm, the I2C communication working in setup() suggest the wiring is ok.

Are you using pull-up resistors on intSCL and intSDA?

Have you tried lowering the I2C bus speed?

Have you tried to put a delay between issuing I2C commands in your loop() code?

Have you tried to control a different I2C slave device from your STM32? Does that work in both setup() and loop()?

Thanks
Felix

Hello @xgonc

no, I did not try any other Ethernet library.

Thanks
Felix

Hello @xgonc

maybe try with a short delay() before the first loop?

BTW: the included PoE example works for me.

Thanks
Felix

Hello @bensonwhlee

try adding a delay(500) before calling pbhub.begin(). My above linked code fails to initialize PbHub without a delay.

Thanks
Felix

Hello @wjcarpenter

the battery charging IC is TP4057 and battery voltage is measured via R40 / R41 into GPI38. See second page of the schematics here.

Thanks
Felix

Hello @bensonwhlee

I think you need to use the M5StamPLC library together with M5Unified and M5GFX libraries for it to work properly.

Please find an example here which works for me.

Edit: if you don't need M5StamPLC specific functions then it should be sufficient to add the following line to your setup code:

Wire.begin(2, 1, 400000U);

Thanks
Felix

Hello @teastain

I am afraid I cannot help, sorry. I exclusively use Visual Studio Code with PlatformIO / pioarduino (which so far doesn't have this issue).

Note: Visual Studio Code / PlatformIO doesn't use M5Stack boards and setting up new Cores (M5Stack and others) can sometimes be quite difficult as well.

Thanks
Felix

Hello @peolsolutions

you are starting to confusing me.

Your posts often are quite vague and not specific to M5Stack hardware / software.

Also why would you post a very similar response again about a month after your last one? Doesn't make sense to me.

Care to explain you reason(s) for doing that?

Thanks
Felix

Hello @smily77

according to the schematic GPIO15 is used as reset pin (SOC_EXTRF_RST).

Thanks
Felix

Hi guys

corresponding github issue for reference.

It seems there isn't an easier way just (yet) than using Espressif Library Builder.

Thanks
Felix

Hello @peolsolutions

please stop posting mostly irrelevant information. This topic is about how to remove the magnets - not about what the magnets are good for.

Thanks
Felix

Hello @alexcap

according to the schematic, your SW2 setting and the code example I would say that you should be able to receive GNSS data on GPIO16 with baud rate 38400.

Note: I don't have the M5GNSS module to test myself, so my conclusion could be incorrect. I also do not know if the uBlox GNSS module needs to be activated via software commands in any way.

Thanks
Felix

Hello @paydogs

my M5PaperS3 running the factory test shows about 4.19 V when fully charged and still on USB-C. When I remove external power it drops to about 4.12 V.

Thanks
Felix

Hello @paydogs

I was just about to suggest that from your video it looks like the battery might be flat.

Glad you figured it out.

Thanks
Felix

Hello @scroggyg

the added 5 V power switch I use to fully turn the modem off when I want to use M5Tab5 without modem (without the need to de-solder it.

The other modification to control the POWERKEY of the modem via GPIO (instead of the default auto power on) of the modem is required for two cases:

• firstly to restart the modem in case it becomes unresponsive to AT commands and
• secondly to get it out of PSM (power save mode).

Thanks
Felix

Hello @kuriko

thank you for this information. I just retried M5StampPico with UIFlow1 and changed the Start Mode to USB Mode and back to Internet Mode. In both cases I get the blue light. So I guess it's not connected to the server.

Thanks
Felix

Hello @scroggyg

in UIFlow2 under Hardware you can find the Watch Dog Timer (WDT) module.

I created a example in the UIFlow2 Project Zone: M5Tough_Watchdog_Test_UIFlow2.2.8

Thanks
Felix