Hass gives control back to ALS patient

I have ALS (Lou Gerig’s disease). I am in a wheelchair all day and can not use my hands effectively or speak. I use an eye gaze system and software called grid 3 to control my computer and communicate.

it is difficult to find one system for people like myself that connects to everything I need control of. Enter my challenge.

Starting with a RPi and hass I went after control of my two LG TVs. using the hass api I was able to configure my eye gaze system to inact commands directly as shown below. it doesn’t stop here. I am controlling lights, heating system and more. Recently I purchased a denkovi relay board which I plan to use to control my adjustable bed. My hands are currently too weak to use the hand operated remote.

for someone like me this makes a huge difference.

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I just wanted to encourage you. I’m having SMA and have very little strength in my hands but can control almost anything in my home with Home Assistant. Can you tell me more about the bed integration?

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I have a Drive hospital bed which has a controller with 6 momentary switches. my plan is to tap into the remote and connect a relay to each switch. I will write scripts to move head, legs and the whole bed up and down. There are analog inputs on the relay board that I could use somehow to monitor position and create custom positions. right now I have to wait for my son to finish the semester before I can get working on this project. I will certainly post more as I achieve success.

wow, this is awesome. really cool to see how powerful this software is, and that it can really make a difference in how people function. thanks for sharing

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This is very impressive, nicely done!

It’s great to see that Home Assistant can make a huge positive impact on someones life.

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This is the greatest way to see the positive use of HA!
All the best of luck and use this great community to gain more freedom for yourself! I will follow your development.
@balloob this is something for the blog!

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Wasn’t there a blog post a while ago about a differently abled user? A “part 2” perhaps?

update

https://youtu.be/5zNOGmoTrvE
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Can you share some information about this?

II am in the process of building more details but here is what I have so far.

Link to the relay board? Is there any soldering involved?

yes, soldering iron needed to remove switches and then solder wires to the pin locations of the switches.

here is what the control board looked like before we removed the switches.
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Hi @Andrew_Miller

This is so inspirational, amazing work!

Out of interest, do you know how much voltage/current goes through the pushbutton switches on the controller and do they have a common ground to all switches?

48Vdc
no it is quite complicated. switches are connected to each other. I gave up trying to understand it

… all the things I used to manage. Son helped wire our whole house fan to two Shelly1s. We will never have to search for the remote again. I also did some Nodered work to keep the fan from being on when the AC is on. And of course I can actuate the fan from my eye gaze software as well.
from eyegaze…

Grid 3 has the ability to show a web window so that I can see changes in status. I am working on function to allow incremental changes in temperature and mode for HVAC unit.

Too much fun…

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Finally got a picture of the bed controls and relay board assembly. This is in a small project box on the headboard. Ethernet jack nearby in wall. So far it has worked great. I have scripts that actuate the relays for 2 seconds per run. This keeps me from going too far before I get into trouble. For the head portion I have a second set of scripts set at 1 second for fine tuning my position.


Here is my eye gaze layout, added light control also,.

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