Hyperion as replacement for good old Boblight….

After two years of using Boblight, I have made a switch to Hyperion on mine HTPC (Zotac D2550 based one).

When Hyperion came to the Raspberry Pi, I was amazed how well it performs at such a low CPU usage. Hyperion has also a perfect configuration tool, which makes it easy and fast to create a config files.
It also has an Android app, which ATM can display static color only (this will change in the near future), but with this app you can see in real time, how different settings reflects to your LEDs.

So yes Hyperion can now be compiled on x86 based machines. Even more… Hyperion daemon can communicate with boblight-X11 (no need for boblightd daemon) to display light also in visualizations and menus. It has its own Hyperion XBMC addon, which works similar as boblight XBMC addon. And with few scripts you can switch between both, with just a remote press.

Hyperion is faster and uses less CPU power. I’d say around 50% less then boblight. What I also like is how the switch to config file can be defined (/usr/bin/hyperiond /etc/hyperionxbox.config.json >/dev/null 2>&1 &). For example you can have more different configurations on the system and can switch between them with simple .sh scripts. But more about this stuff in the future.

Are you interested??? My next post will be a tutorial how to compile Hyperion on Ubuntu and make a switch to new ambilight.

Note:If you will take a closer look into the config example, you will see Xbox in the name… This is because in the future you will be able to make your HTPC act as ambilight machine also for external units, just like on RPi. Stay tuned….

 

Hyper, hyper,… Hyperion

How to create a standalone ambilight gadget based on Hyperion and Raspberry Pi

Update 1: Now includes effect engine. Also update Hyperion on Android.
Update 2: The installation script takes care now of startup even, if upstart script is not available. The main difference is that you do not need to use rc.local anymore.

 

1. What do you need:

    • Raspberry Pi
    • At least 4GB SD card
    • LEDs (I am using WS2801 based one. I’d recommend you to get those one since they are 8 bit. Also remember that WS2811 based one are not supported.)

WS2801_LEDS

  • USB Video grabber (Use one based on STK1160, since it is supported out of the box in RPi. I assume you can also use one based on UTV007 chip. Somagic based one, do not work under ARM architecture.) This one works eBay link.

USB_Grabber

  • Powered HDMI splitter

HDMI_Splitter_1

  • HDMI2AV converter (it converts HDMI to S-Video signal). Be careful that it is HDMI2AV and not AV2HDMI.

HDMI2AV

  • A good power supply (5V 5A for example this)
  • Power jack

power_jack

  • Few HDMI cables
  • S-video male to male cable or adapter
  • Some wires, solder, soldering iron,…
  • Optional: If you are going to power LED, RPi and HDMI Splitter from one power supply, you can buy on e-Bay this DC splitter. (always double check polarity +/-)

DC_Splitter

 

2. Lets begin….

First download the following image »2013-09-25-wheezy-raspbian.zip« from http://downloads.raspberrypi.org/raspbian_latest and image it to SD card with Win32DiskImager. After that insert newly created SD card into RPi and power it up. Now when RPi is up and on network, SSH into it and execute command:

sudo raspi-config

These two pictures shows, what you need to enable, under advanced settings (SSH and SPI) to get SPI and SSH work.

Advanced OptionsEnable SPI

Then enable root account:

sudo passwd root

You can now insert your USB grabber and check if it is recognized with:

lsusb

If it is,  you should see new port in /dev/video0

(Note: here I am covering only USB grabber based on STK1160 chip. If you have other one, then you have to make it work first, before continuing. Some chip-sets are not working under ARM.)

Now it is time to install pre-requirements:

sudo apt-get update
sudo apt-get install libqtcore4 libqtgui4 libqt4-network libusb-1.0-0 libprotobuf7 ca-certificates mplayer python-dev
cd /tmp
wget -N raw.github.com/tvdzwan/hyperion/master/bin/install_hyperion.sh
sudo sh ./install_hyperion.sh
sudo rm /etc/init/hyperion.conf

(ignore the error at the end of the script “install_hyperion.sh”. It is upstart script related and we will not use it anyway.)

Ok so hyperion is installed and almost ready to go. We just need to make it autostart.

sudo nano /etc/rc.local

And add the following startup commands in it. You can experiment with mplayer switches to find the sweet spot and feel free to share it:

/usr/bin/gpio2spi </dev/null >/dev/null 2>&1 &
/usr/bin/mplayer -tv driver=v4l2:width=72:height=58:device=/dev/video0 -vo fbdev -fs -fps 15 tv:// </dev/null >/dev/null 2>&1 &

The hardest software part is done. Now you need to create configuration file for Hyperion.

Go to https://github.com/tvdzwan/hyperion/wiki/configuration  and download config tool. Also read the manual, so that you will know how to create it :)

After you have created config file “hyperion.config.json” copy it to /etc/ and replace it with present one. The easiest way to copy file is with WinSCP and root account or. you can copy into /tmp directory and then move it with cli command.

sudo mv /tmp/hyperion.config.json /etc/

 

Scripts….

If you want you can create additional scripts under /media/scripts/ which you will be able to execute if you would like to use different inputs on USB grabber. For example as standalone ambilight to process TVs internal tuner like DVB-S, C or T. Check connection diagrams for an example. To use S-Video out, your TV must support this feature. You will also need the connector with In/Out switch like this one on the picture below.

Scart

Those scripts are easy and they can look like (TV_ambilight.sh):

#!/bin/bash
killall mplayer
killall hyperiond
/usr/bin/mplayer -tv driver=v4l2:width=72:height=58:input=2:device=/dev/video0 -vo fbdev -fs -fps 15 tv:// </dev/null >/dev/null 2>&1 &
/usr/bin/hyperiond /etc/hyperion.config.json </dev/null >/dev/null 2>&1 &

Notice the command switch :input=2: This defines the yellow input on USB grabber.

If you own an Android phone, then I’d recommend to download ScriptKitty.google-play-logo1.jpeg.

With this app and root access to your RPi you will be able to execute scripts, that you have create under /media/scripts/ with your phone. This way you can switch different video inputs or. make scripts whatever you like to do for you.

For Hyperion there is also a nice app on GooglePlay which allows you to control Ambilight from your phone over network.
I’d also recommend this app to find the perfect light calibration for your leds. You can simulate in real time every settings and later put it into Hyperconf tool to create perfect config file. Also consider buying full version to support developers. Click on icon below to download it.

Hyperion

 

Hardware part

I will not cover any details on hardware part since it is covered on official Hyperion site https://github.com/tvdzwan/hyperion/wiki/hardware

Connection diagrams:

Drawing1 Drawing2

Since I am using a good power adapter, I am able to power all devices with a single power brick. So I am powering RPi over GPIO pins, HDMI splitter, HDMI2AV does not need any power, since it is juiced over HDMI and of course LEDs.

diagram_custom

Note: this should be your last step and make this one when you are certain, that everything is working as it should and triple check wires (polarity +/-) before connecting to power, because you can destroy them easily. Also for every connection use separate GND.or. it is possible that LEDs will flicker.

 

How can I connect my RPi to WiFi with CLI???

First you need compatible USB Wi-Fi adapter.With the following commands you can connect RPi to your Wi-fi network.

Now lets connect to Wi-Fi over CLI:

wpa_cli
> scan
> scan_results
> add_network
> set_network 0 ssid "your_SSiD"
> set_network 0 psk "YourPassword"
> enable_network 0
> save_config
iwconfig

command will show your current wireless config.
Using the

ifconfig

command to show you ip address for the wlan0 interface.

 

Feel free to buy me a house…

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Below are few pictures and links, just to get some ideas….

In development stage as you can see…Quick preview of ambilight on XBOX 360 and Raspberry Pi: First time played on TV

2013-11-25 16.45.00-large 2013-11-25 21.12.31-large 2013-11-25 21.12.42-large 2013-12-02 07.47.16-large 2013-12-02 07.48.03-large

O2 can do…. O2 Joggler XBMC mod

This morning I saw that it is over a year since my last update I have made for O2 Joggler device. This was originally made from me XBMC for O2 Joggler. There is so much going on at the moment, so I think I will wait until 14.04 Ubuntu comes out and also Gotham XBMC. Then I will create another image for you out there.

And even on this device I have tried Ambilight :)

XBMC for O2 Joggler Ambilight POC