I followed Dirk description further up in this thread.
- Connect USB-TTL Serial Modul FT232RL GND to GND on Gateway and RX from UART to TX on Gateway
- Plug in USB Modul to PC –> red light in corner of module turns on
- Turn on Gateway –> flashes blue for a few seconds, then turns off
- In Putty, select COM3 (Speed 115200, Data bits 8, Stop bits 1, Parity None, Flow control None) –> Open
- Connect TX from UART to RX on Gateway. No additional LED turn on on UART
I only used TX,RX and GND(connected to the metal case of the button). As you see lack of steady hand of soldering I used tape to connect the wires.
USB UART
Cables to easily to connect:
Send following command a couple of times:
psm-set network.open_pf 3
Verify with:
psm-get network.open_pf
Check Port 9898 192.168.0.147 is your gateway ip:
sudo nmap -Pn -sU 192.168.0.147 -p 9898