HDMI whisperer: Unterschied zwischen den Versionen

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==How==
==How==
The [LINK] cheap chinese HDMI switch we got has an IR remote control that comes with a 3.5mm audio connector to plug in a cape with a TSOP383.
The [LINK] cheap chinese HDMI switches we got have an IR remote control that comes with a 3.5mm audio connector to plug in a cape with a TSOP383.


This receiver was plugged into the audio port of a Laptop and the generated audio was captured.
This receiver was plugged into the audio port of a Laptop and the generated audio was captured.
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That gave us 5 different Audio files.
That gave us 5 different Audio files.


The files were post-edited using ?? and now we can simply play them and aattch the audio out from the raspberry pi directly to the HDMI switch IR receiver port with a small piece of voltage converter logic inn between.
The files were post-edited using audacity and now we can simply play them and attach the audio out from the raspberry pi directly to the HDMI switch IR receiver port with a small piece of voltage converter logic in between.
 
 


==Data==
==Data==

Version vom 22. November 2015, 11:59 Uhr

Language: English
Subpages:
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HDMI whisperer
No-Logo.png
Gestartet: 21.11.2015
Involvierte: User:Phaer User:m68k User:Pk
Status: active
Beschreibung: It's a custom built remote control interface for our cheap chinese HDMI switches
Shutdownprozedur:
Zuletzt aktualisiert: 21.11.2015


What

Our HDMI switches provide only a classic infrared remote control, to control them via the Slackomatic we will replace the infrared receiver with a few wav files and a small custom built amplifier.

How

The [LINK] cheap chinese HDMI switches we got have an IR remote control that comes with a 3.5mm audio connector to plug in a cape with a TSOP383.

This receiver was plugged into the audio port of a Laptop and the generated audio was captured.

That gave us 5 different Audio files.

The files were post-edited using audacity and now we can simply play them and attach the audio out from the raspberry pi directly to the HDMI switch IR receiver port with a small piece of voltage converter logic in between.

Data

Wav files with the recoded ir commands:

  1. HDMI 1
  2. HDMI 2
  3. HDMI 3
  4. HDMI 4
  5. HDMI 5


Schematic

Circuit (n.b: the input is actually 3.3V instead of the shown 5V):

miniatur,left