[Renzo Mischianti]

Hi all,
I think the problem isn’t only the baud rate, but the communication protocol also.
So It’s more complex work, but if you can find the protocol and generate the key to do the relative request, I can try to generate a version for your 3D printer.

Here is the protocol info for MKS
MKS WIFI for Makerbase Robin: communication protocol and Cura plugin – 3

Bye Renzo

[Renzo Mischianti]

Hi build a specified version with Serial at 250000, without any dynamic management, I attach the firmware.
Please give me a feedback.
Bye Renzo

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[Renzo Mischianti]

Ok, but by default, can we consider that 90% of all firmware is 115200 and 250000?
Thanks RM

[Renzo Mischianti]

Hi NikoloCZ,
thanks for your clarification. So the only 2 options are 115200 and 250000?
Or are there multiple options??
Bye Renzo

[Renzo Mischianti]

Hi Elkez,
Yes, it’s good, if you have trouble you can add it directly to stateName.h file.
Bye Renzo

[Renzo Mischianti]

Hi Norm,
I don’t have an Arduino UNO WiFi, but it seems It uses WiFiNINA as the library, Have you had to change the configuration for an Arduino-like board with WiFiNINA?

Like so:

#ifndef DEFAULT_EMAIL_NETWORK_TYPE_ARDUINO
	#define DEFAULT_EMAIL_NETWORK_TYPE_ARDUINO 	NETWORK_WiFiNINA
	#define DEFAULT_INTERNAL_ARDUINO_STORAGE STORAGE_NONE
	#define DEFAULT_EXTERNAL_ARDUINO_STORAGE STORAGE_SD
#endif

Bye Renzo

[Renzo Mischianti]

You must set the define

#define E32_TTL_2W

Bye Renzo

[Renzo Mischianti]

Hi Elkez,
what is your problem?
Bye Renzo

[Renzo Mischianti]

Hi Fabioo…
I don’t know how to convert It. But EByte grants that the Version byte is that.
Bye Renzo

[Renzo Mischianti]

Hi Ludophot,
if you have the EByte USB adapter, try to reset with It.

It’s strange. I have some Lolin32, and they work correctly.
What kind of defect do they have?

Bye Renzo

[Renzo Mischianti]

Thanks a lot for the information, Роман.
Bye Renzo

[Renzo Mischianti]

Hi fabiooo,
I don’t use AT commands, you can retrieve that info with ModuleInformation, more info in this section.

Do You use currently the AT commands?
Ho do you query that info?

Bye Renzo

[Renzo Mischianti]

Hi wdaum,
if I remember the modules aren’t compatible, they are based on different technologies and EByte has changed the cryptography systems in the various models.
Bye Renzo

[Renzo Mischianti]

Hi Ludophot,
install an antenna; if not, you use It and retry.

The other problem is that I think there is a memory leak. Try to add some checks on the free memory

  Serial.println(ESP.getFreeHeap());

Bye Renzo

[Renzo Mischianti]

I found this tutorial, I think It’s what you need

Serial/UART Firmware Upload

A second firmware upload method is to use serial (UART) upload, which works in much the same way as the standard way of uploading code to an Arduino. Like in the case of the Arduino serial upload this approach relies on a pre-uploaded bootloader. My understanding is that the Nucleo boards already have this bootloader in place.

UART to Nucleo connections

• Connect GND and 5V for power.
• Place a jumper between BOOT0 and VDD to select the serial upload mode.
• Connect PA9 to UART RX
• Connect PA10 to UART TX
• Power cycle to reset board and enter serial upload mode

Serial Uploader Tool

On Windows ST provide a tool for uploading firmware over serial called STM32-Flasher: http://www.st.com/en/development-tools/flasher-stm32.html

For Linux there is a neat command line tool called stm32flash available in the package manager: http://manpages.ubuntu.com/manpages/bionic/man1/stm32flash.1.html

It can be installed with the following apt-get install:

sudo apt-get install stm32flash

I compiled the Arduino example Blink for the Nucleo64 STM32F303 using the Arduino IDE and then fetched the compliled .bin file from the /tmp folder that Arduino creates.

I could then upload to the STM32F303 by running:

sudo stm32flash -b 115200 -w blink.ino.bin /dev/ttyUSB0 

Terminal output:

$ sudo stm32flash -b 115200 w Blink.ino.bin /dev/ttyUSB0
stm32flash 0.5

http://stm32flash.sourceforge.net/

Using Parser : Raw BINARY
Interface serial_posix: 115200 8E1
Version      : 0x31
Option 1     : 0x00
Option 2     : 0x00
Device ID    : 0x0446 (STM32F302xD(E)/F303xD(E)/F398xx)
- RAM        : 64KiB  (6144b reserved by bootloader)
- Flash      : 512KiB (size first sector: 2x2048)
- Option RAM : 16b
- System RAM : 8KiB
Write to memory
Erasing memory
Wrote address 0x08002c5c (100.00%) Done.

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