0

June 13, 2014 AT 6:00 am

Turn your Raspberry Pi into a live HDTV transmitter @Raspberry_pi #piday #raspberrypi

14307618084 a9f735fce6 z

This tutorial from Alexandru Csete at OZ9AEC shows you how to turn your Raspberry Pi into a live HDTV transmitter:

In a previous post I wrote about using the UT-100C DVB-T modulator on linux and I promised to follow up how to use the modulator with live video sources. In this post I am going to describe how to setup the modulator on a Raspiberry Pi equipped with a RaspiCam camera module, effectively turning the Pi into a live HDTV transmitter.

The setup can be made small enough to be carried by a medium size drone and the range can be increased using power amplifiers. If you do that be sure to comply with the radio regulations applicable in your country. In particular, transmitting with significant power in the UHF TV bands will most likely get you into trouble. Your best bet is to get a ham radio license and use the 23 cm band.

The setup I am using performs the following tasks:

-Capture H.264-encoded video from the camera using the raspivid application.

-Convert the H.264 bitstream to constant bitrate and DVB compliant MPEG-TS stream using ffmpeg 2.2.2.

-Send the MPEG-TS stream to the UT-100C modulator using tsrfsend application.

-In my own setup I also use a 20 dBm power booster to increase the range.

14370765083 1bdcb3d316 z

Read more.


998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — Transforming Today’s Bad Jobs into Tomorrow’s Good Jobs

Wearables — Snap a picture

Electronics — To Y5V or not to Y5V?

Biohacking — Quantified Bob’s Experience with Ketone Esters

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.