check LAN max speed- iperf3

apt install iperf3

#on server 192.168.0.10
iperf -s


#on client
iperf -c 192.168.0.10


root@lp-arm-3:~# iperf3 -c 192.168.0.10
Connecting to host 192.168.0.10, port 5201
[  5] local 192.168.0. port 50976 connected to 192.168.0.10
port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  11.4 MBytes  95.6 Mbits/sec  248   48.1 KBytes       
[  5]   1.00-2.00   sec  10.9 MBytes  91.2 Mbits/sec  260   38.2 KBytes       
[  5]   2.00-3.00   sec  10.9 MBytes  91.7 Mbits/sec  251   38.2 KBytes       
[  5]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec  245   48.1 KBytes       
[  5]   4.00-5.00   sec  10.8 MBytes  90.7 Mbits/sec  277   36.8 KBytes       
[  5]   5.00-6.00   sec  11.3 MBytes  94.9 Mbits/sec  247   38.2 KBytes       
[  5]   6.00-7.00   sec  11.1 MBytes  92.8 Mbits/sec  231   52.3 KBytes       
[  5]   7.00-8.00   sec  10.9 MBytes  91.7 Mbits/sec  260   46.7 KBytes       
[  5]   8.00-9.00   sec  10.8 MBytes  90.7 Mbits/sec  241   50.9 KBytes       
[  5]   9.00-10.00  sec  10.9 MBytes  91.7 Mbits/sec  245   46.7 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec   110 MBytes  92.5 Mbits/sec  2505             sender
[  5]   0.00-10.05  sec   110 MBytes  91.9 Mbits/sec                  receiver

iperf Done.

Ref- https://www.jeffgeerling.com/blog/2025/exploring-wifi-7-2-gbps-on-raspberry-pi-5

Adafruit_DHT22 python3 issue fixed – RuntimeError: Unknown platform

git clone https://github.com/adafruit/Adafruit_Python_DHT.git

cd Adafruit_Python_DHT


if [ $(cat /proc/cpuinfo | grep Hardware | wc -l) != "1" ] ; then
  cat /proc/cpuinfo > /etc/cpuinfo 
  echo -e "\nHardware       : BCM2709" >> /etc/cpuinfo 
  mount --bind /etc/cpuinfo /proc/cpuinfo
  echo "Mounted cpuinfo with Hardware info"
fi

python3 setup.py install

https://stackoverflow.com/questions/72554099/error-installing-adafruit-dht-for-python-on-raspberry-pi-400