I would like to know if BCM43438 supports ad-hoc mode, as I am planning to purchase 3, or more, Pi 3 to setup a network.
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Yes, it does:
pi@rp3:~ $ sudo iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=1496 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
pi@rp3:~ $ sudo iwconfig wlan0 mode ad-hoc
pi@rp3:~ $ sudo iwconfig wlan0 essid fufutos
pi@rp3:~ $ sudo iwconfig wlan0 channel 11
pi@rp3:~ $ sudo iwconfig wlan0
wlan0 IEEE 802.11bgn ESSID:"fufutos"
Mode:Ad-Hoc Frequency:2.412 GHz Cell: Not-Associated
Tx-Power=1496 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
pi@rp3:~ $ sudo ifconfig wlan0 10.0.0.3
pi@rp3:~ $ ping 10.0.0.10
PING 10.0.0.10 (10.0.0.10) 56(84) bytes of data.
64 bytes from 10.0.0.10: icmp_seq=1 ttl=64 time=10.8 ms
64 bytes from 10.0.0.10: icmp_seq=2 ttl=64 time=24.9 ms
64 bytes from 10.0.0.10: icmp_seq=3 ttl=64 time=31.1 ms
64 bytes from 10.0.0.10: icmp_seq=4 ttl=64 time=12.0 ms
64 bytes from 10.0.0.10: icmp_seq=5 ttl=64 time=12.1 ms
^C
--- 10.0.0.10 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4004ms
rtt min/avg/max/mdev = 10.878/18.240/31.129/8.256 ms
(.10 is another random machine on my network with the same ad-hoc settings, of course).
/ji
JayEye
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