Hi Philipp
thanks for the clarification with ttyUSB0. Do you have a pin description from the RJ11 connector?
Thanks
Marco

Hello,
I used the RS485-0 (so /dev/ttyAMA) for the serial console and I want change to RS485-1 ( /dev/ttyS0 ).
Do you have a pin description of the RJ11 pins?

According to a spec I found in the Web the Pins are:
1: TXD+
2: GND
3: TXD-
4: RXD-
5: Not used
6: RXD+

I guess pin 1 is on the WLAN ...

Hello ufozone
I am not saying to flash the emmc but replacing the files.
So in the FAT32 partition are the boot files, bootloader, kernel, device tree.
When the system is up I can access the files located in boot ( /dev/mmcblk0p1 )

The problem I have is that I am blind during the first part of the ...

Hi Nicolai,
is there a guide on how to do that with the external IO Module? I don't even see screws to open the RevPi flat...
However, I also want to avoid that.

Normally u-boot is used in embedded systems but if I look at the boot partition I do not see the binary:

smartheit@RevPi468660:~$ ls ...

Hi Nicolai,
thanks for your reply. This is not good. I cannot design a product with an already obsolete Linux Kernel (shipped with 4.19).
So no way to boot entirely from a USB stick?
Marco

Dear Kunbus Support,
I started a project with the RevPi flat. I need to install the buster image ( https://revolutionpi.com/download/5435/ ).
On the kunbus site is this guide:
https://revolutionpi.com/tutorials/images/install-jessie/

The RevPi flat does not have a micro USB port.
So how do I flash ...