Atheros Wifibroadcast Video for TP-LINK TL-WN722N

Here’s how to implement tx and rx wifibroadcast in 2.3GHz (monitor mode) to capture video with raspivid or picamera and transmit (tx) to the ground station (rx) which a Linux Ubuntu.

You must already compile the kernel PREEMPT for raspian whether to use the 2.3GHz band : kernel raspian PREEMPT building with Atheros hambands 2.3Ghz patch

and also for the PC ground station : Ubuntu kernel building with Atheros hambands 2.3Ghz patch

All information on this subject here : https://befinitiv.wordpress.com/wifibroadcast-analog-like-transmission-of-live-video-data/

Bash script  to transmit video and telemetry text overlayed from raspian with picamera: start_tx_and_recording_with_picamera_video_input.sh

Bash script to display video on ground station : start_rx.sh 

  • Video rebroadcast :
cat $VIDEO | ./tx -p $PORT -b $BLOCK_SIZE -r $FECS -f $PACKET_LENGTH $WLAN
video replay
  • mp4 conversion without compression (play with VLC):
avconv -stats -y -r $FPS -i $VIDEO -vcodec copy $VIDEO.mp4
video conversion

20151207_070457

Pages

Laisser un commentaire

Votre adresse de messagerie ne sera pas publiée. Les champs obligatoires sont indiqués avec *

fr_FR
en_US