HA Panel - Fire HD Power Supply

Hardware
1

Hi All,

i am very new to this community, tried some search, but didn’t found a related topic.

I installed a Fire HD10 to show some specific information at the front door. Here, I had already a EIB Cable which can be used for other Hardware, which is directy connected to main electrical setup.

Then the idea came to power the Tablet by this cable to have a “clean” solution and no additional power supply next to the panel, also mounted on the wall.

So I installed a cap rail mounted 5V supply (30W) to keep the Panel always alive and soldered an USB Type C to the cable, but its not powering enough. I am losing battery Charge, so the panel is empty after one day…

I’ve read that USB Typ C, especially if its supplying more than 0,5 A, it has to be “intelligent”? (UBS PD? Are there any other solutions to power the Panel? Are there any connector which can offer this intelligence?

I dont want to add a seperate Power Supply next to the panel, also being mounted on the wall.

2

I’ve used the same exact tablet as a dashboard.

If it can give you a ‘clean’ idea; here is my setup:

I mounted the tablet on the wall, made a hole and installed this outlet: (Which could be done using your cable)

Smart Outlet with 2 USB Ports,Lumary Smart Outlet in Wall Works with Alexa & Google Assistant,15 Amp No Hub Required,ETL & FCC Certified - - Amazon.com

Works perfect with the tuya integration and the usb port is giving more than enough power. With this outlet, you can monitor the charge of the dashboard to be between 20-80 % battery life using an automation.

Then I used:

Amazon.com: Smart Home Mount Tablet Wall Mount Kit with Integrated Power Cable - Fits Fire 10 - White : Electronics

This 3d wall mount first perfectly, and comes with a slim usb charge port that is hidden completly when installed.

3

how long a run is the cable? you’re maybe suffering from voltage drop.

4

Thanks for the Feedback.

The EIB Cable is quite long. At least 10 m. So sure there can be a voltage drop…

I am thinking of using 24 V and then using a step down converter to 5 V…

@Drew514 Thanks for the hint to the case. I printed it on my own…but did not found a “slim” usb Typ C cable so far…

5

Look for “ffc usb c”