To simplify the HDMI capturing I removed the HDMI Splitter, HDMI2AV Converter and the USB-Videograbber and replaced it with a HDMI to USB 3.0 Video Capture Card with HDMI Loop Output.
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The digital signage project aims to provide the possibility to control a display which shows different website as slideshow. Therefore a website is embeding a iframe which plays different urls as slideshow.
The project can be found on: https://github.com/Trekky12/digital-signage
Slideshows
It is possible to create different slideshows containing slides. A slide is built from an URL and a duration how long this URL should be shown.
Clients
Clients are organized in client groups. To assign a client to a group the client needs to open the group specific URL in the browser of the client. Alternatively the electron app can be used.
When the client group URL is opened the assigned slideshows are shown. The client changes the URL defined in the individual slides after the assigned duration.
The currently active clients can be seen in the backend.
When the slideshow is changed the new slideshow needs to be send to the clients of a group.
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I have a Adafruit MagTag and designed a custom 3D case because I didn’t like the Snap Fit Case from Adafruit.
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To further improve the PiRadio I created a PCB which addresses all components used and makes the cabling easier.
The PCB handles the power circuit based on the PowerBoost 1000C with the possibility to power-on/shutdown the Raspberry Pi with a simple button press (see https://github.com/NeonHorizon/lipopi/blob/master/README.power_up_power_down.md#a-simple-press-no-hold-power-up-version) and voltage monitoring of the battery (see https://github.com/craic/pi_power#voltage-monitoring-with-an-adc). The battery state is available by two leds.
Additionally the DAC Pins, the WS2812B LEDs Pins and the Button Pins can be connected directly.
