Hello @lenswerks

afaik Unit CatM GNSS (U137) uses a SIM7080G which can not use both, a LTE and GNSS, at the same time due to some shared RF circuitry.

See this posting on Stack Overflow.

Thanks
Felix

That was painful but figured it out.
Must be better ways but this works where lastWord will be the exact SMS message sent.

log(receivedMsg); // Display the received message

receivedMsg.trim(); // Remove any trailing or leading whitespace, including newlines // Find the last newline character or any other delimiter expected) int lastNewlineIndex = receivedMsg.lastIndexOf('"'); // Extract the substring after the last newline character String lastWord = receivedMsg.substring(lastNewlineIndex + 1); lastWord.replace("\n", ""); lastWord.replace("OK", ""); lastWord.replace("\r", ""); // Removes all carriage return characters

PA Hub is a I2C expander. That means it modifies/replaces the device addresses so it can handle more devices even with the same address. To make this work the software has to decode the "new" address of the device.

PB Hub is a GPIO expander. That means, it simple adds GPIO ports and convert them to one upstream I2C. As with the PA Hub the software has to decode the data.

PDM microphones usually have an output which is electrical close to I2C but still different in the data part (e.g. no addressing). PA Hub is for I2C so it will not work. PB Hub may work if it is fast enough to read the clock and data and decoding the data stream on the Controller. I'm not sure if this is really fast enough.

I have a project in UIFlow2 and need the BIN file for M5Launcher; are BIN files saved in the cloud, or only created when downloading to my device?

Hi @robski,

Thanks for your comment. Yes one Kmeter works alone.

Yeah, it's possible! You just need to make sure the modules use different communication protocols or assign different pins if they're both using something like SPI. The CC1101 typically uses SPI, and the PN532 can use I2C or SPI—so setting the PN532 to I2C might make things easier.

As an alternative to USB, you can program it wirelessly using an OTA (Over-The-Air) update via Wi-Fi or use an external programmer like an ESP32-based ISP to bypass the USB connection entirely.

Hello @turgu

FWIW: in M5PaperS3 the eInk display is directly controlled by ESP32S3.

In M5Paper the GPIO WaitBusy() checks is GPIO27 which comes directly from IT8951 so I guess if the line never goes HIGH either IT8951 is not (properly) powered or defective.

Anyhow, have you tried to change the code to ignore the busy state of IT8951; maybe add some small delay instead.

BTW: I measured GPIO27 and when M5Paper is running it's being pulled up. I don't see a pull-up resistor in the schematics so I guess IT8951 is pulling it up (when not busy).

Thanks
Felix

For improved performance, use a Raspberry Pi 4 (4GB), which Robocraze sells. They are the authorized seller of Raspberry Pi Boards in India. For the last two months, I have been using this configuration without any problems. Conflicts over power or networks may be the source of your issue. Have you looked into if the M5Stack Unit V2 is using the USB excessively? Consider using a separate power source for the M5Stack or a powered USB hub.

@teastain looks like it is available to be used with Uiflow2 now
CoreMP135 with Uiflow2

@kuriko
I just got my RoverC Pro & JoyC, and two M5StickC PLUS2, and I am trying put them together.
But I can't find the sample code for them (1. Rover C Pro + M5StickC PLUS2 / 2. JoyC + M5StickC PLUS2).
Does it mean Rover C Pro & JoyC only work with M5StickC PLUS ?

@dm4401
The documentation of UiFlow2 is a bit hidden: https://uiflow-micropython.readthedocs.io/en/latest/index.html
UiFlow2 can of course use PWM, you need to add this function in the Hardware on the left.
We recommend using the online version of UiFlow2, because UiFlow1 is being phased out. The offline version of UiFlow1 has long stopped updating.

@ewoodier84

I am using chrome, I will try a cache clear. This applies both to new button blocks and existing in all projects. Any button blocks that had buttons B or C selected have reverted to button A in all of my projects.

Edit: Clearing cache did not work but on another laptop I can see all three buttons, definitely some kind of local issue.

@mohammedalmusimie
have you adapted the codes to CoreS3?

@ChuckInDallas Yes.

Hello @gadgetguy

I can confirm that enabling RFID prevents M5Dial from connecting to WiFi.

After enabling RFID in M5Dial.begin(cfg, true, true), try M5Dial.Rfid.PCD_AntennaOff() to temporarily disable RFID while using WiFi, then after disconnecting from WiFi enable RFID again with M5Dial.Rfid.PCD_AntennaOn().

Thanks
Felix