Serial connection to Meraki MR18

Installing and Using OpenWrt
3

@tmomas
I've tried almost all possible settings - current is: 115200 8/1/N/N (no flow control)

In the meantime I've found another post here.
This post was ponting me to the right direction - I do need a TTL USB converter.

Unfortunately I don't have one - but I have a bunch of Arduino Nano boards around.
So if sombody needs a really cheap USB TTL converter...

  1. just take a Arduino board (nano in my case)

  2. flash this small sketch on it:

void setup()
{
  pinMode(0,INPUT);
  pinMode(1,INPUT);
}
void loop()
{

}

  1. Connect Pin0 -> RX, Pin1 -> TX and Pin5 -> GND

  2. Plug your adrunio to your computer, identify the Com Port, connect to the Com Port und you are done if you see the "Meraki" prompt