Thank you for your reply!
janisk wrote:This router does not have a hardware required for console to work also, it is not initialized and thus, not available in software even when presented with required hardware as OS is instructed to not to look for such port.
Out of some weird mood I spend another hour with the RB433UL and discovered that indeed the electrical part of the serial console is working.
The downside is that you need a kernel from openwrt to enjoy this feature
- hold reset button during bootup
- provide DHCP and tftp services suitable for booting from the network
- feed an openwrt image build for RB433 via tftp
As soon as the kernel is transmitted, you will see the kernel boot message via the serial console with 115200 baud.
But anyway: this is not the original firmware, thus your answer is valid.
If you require console access better opt for the device with port already present at the time of purchase to avoid all this hassle.
Yes - I learned that lesson
It is just that these RX/TX/GND/3.3V pads looked too promising to me ...
Also, console is not required to manage the router as there are tools and procedures on how to operate the router without console port ...
Our local mesh community uses firmware based on openwrt. Thus I need the serial console to adapt the current RB433 openwrt images to the new RB433UL product. Of course this is not necessary anymore as soon as this initial work of porting is done ...
Again, thank you for your response.