Connect to the board
tio /dev/ttyACM0
Press reset 2 times
wifi_mode ap ap_set espeed -a open wifi_txpower -u 83 iperf -s -i 3 -t 360
wifi_mode sta sta_connect espeed wifi_txpower -u 83 iperf -c 192.168.4.1 -i 3 -t 360