Playing with the WeMos 8266 D1 (Wemos esp-wroom-02 Pocket 8266 D1 mini WIFI Module --ESP8266+18650 Battery)
$ stty -F /dev/ttyUSB0 115200 cs8 -cstopb -parenb -icanon min 1 time 1
$ while true; do cat -v < /dev/ttyUSB0 done
Scanning...
2 networks found :-)
1: Volumio (-67) S
2: klipwerf 2.4 (-59) S
Scanning...
2 networks found :-)
1: Volumio (-65) S
2: klipwerf 2.4 (-60) S
Scanning...
2 networks found :-)
1: Volumio (-65) S
2: klipwerf 2.4 (-62) S