BedREST

A nodejs based REST service for controlling a Reverie MotionSIGNATURE adjustable bed foundation equipped with a Bluetooth LE controller.

This service is also reported to work with the Purple PowerBase which appears to use the same controller as the MotionSIGNATURE.

Requirements

You'll need a Bluetooth LE capable Bluetooth adapter and software stack. I used a Raspberry Pi running Raspbian with a usb-bt4le adapter which seems to perform pretty well for me. The noble project has more information about compatible operating systems and Bluetooth adapters.

Installation

Install a recent version of nodejs, clone this repository, and then form a command prompt type:

npm install

Configuration

In order for BedREST to see your bed you'll have to give it the MAC address of the bed(s) you want to connect to and give them friendly labels. You can do this by editing bedrest.js and editing the following:

this.beds = { "01:23:45:67:89:0A": "bed1", "01:23:45:67:89:0B": "bed2" };

This would tell BedREST to look for and connect to two different beds on startup.

Running

To run the service just open a command prompt to the working directory and type:

node bedrest.js

Please note that this service doesn't presently have any type of authentication built in. Don't run this on a computer directly connected to the Internet unless you want strangers controlling your bed.

Making Requests

By default BedREST runs on port 8080 and listens for commands with this pattern:

/bed/<label>/<command>/<value>

Where label is the name of a bed you assigned in bedrest.js and command is one of the following:

Command	Needs Value	Range	Description
headup	No	N/A	Start elevating the head position.
headdown	No	N/A	Start lowering the head position.
footup	No	N/A	Start elevating the foot position.
footdown	No	N/A	Start lowering the foot position.
stopmotion	No	N/A	Stops head and foot motion.
headposition	Yes	0 - 0x64	Sets the absolute head position.
footposition	Yes	0 - 0x64	Sets the absolute foot position.
massageheadup	No	N/A	Start increasing the head massage intensity.
massageheaddown	No	N/A	Start decreasing the head massage intensity.
massagefootup	No	N/A	Start increasing the foot massage intensity.
massagefootdown	No	N/A	Start decreasing the foot massage intensity.
stopmassagemotion	No	N/A	Stop head and foot massage immediately.
headmassage	Yes	0 - 0x0A	Set the absolute head massage intensity.
footmassage	Yes	0 - 0x0A	Set the absolute foot massage intensity.
fullbodymassage	No	0x41 - 0x44	Start a full body massage.
flat	No	N/A	Flatten the head and foot positions.
zerog	No	N/A	Put the head and foot positions into "Zero G" mode.
antisnore	No	N/A	Put the head and foot positions into anti-snore mode.
memrecall1	No	N/A	Recalls memory position 1.
memrecall2	No	N/A	Recalls memory position 2.
memrecall3	No	N/A	Recalls memory position 3.
memrecall4	No	N/A	Recalls memory position 4.
memsave1	No	N/A	Saves current position to memory position 1.
memsave2	No	N/A	Saves current position to memory position 2.
memsave3	No	N/A	Saves current position to memory position 3.
memsave4	No	N/A	Saves current position to memory position 4.
lighttoggle	No	N/A	Toggles the under-bed night-light on and off.
lightbrightness	Yes	0 - 0x7C	Adjusts the night-light brightness.
lighttimer	Yes	0 - 0xFFFF	Sets the number of seconds until the light automatically turns off, 0 to disable timer.
status	No	N/A	Gets the current position and massage status of the bed along with the version of the protocol and the last heartbeat time.

If the command you're trying to send requires a value it should be sent in hex, without any leading 0x. For example sending decimal 100 (0x64 hex) to the 'mybed' bed and 'headposition' command would look like this:

POST http://localhost:8080/bed/mybed/headposition/64

Commands that don't require a value should simply omit it, for example the 'flat' command:

POST http://localhost:8080/bed/mybed/flat

There's an example web application located in the interface/ folder.

Streaming Updates

If you want to receive streaming updates for the position of the bed you can connect to the server from a websocket connection like this:

let ws = new WebSocket("ws://localhost:8080")
ws.onmessage = (msg) => console.log(JSON.parse(msg.data))

When you adjust the position or the massage level of the bed you should start to see updates in your console like this:

{
    "bed": "alice",
    "address": "00:01:02:03:04:05",
    "status": {
        "headPos": 30,
        "footPos": 65,
        "headMassage": 0,
        "footMassage": 0,
        "unknown1": 0,
        "unknown2": 0,
        "checksum": 0
    }
}

Bluetooth LE Technical Details

The Bluetooth LE module for the Reverie MotionSIGNATURE bed advertises the following service UUID:

1b1d9641-b942-4da8-89cc-98e6a58fbd93

The bed then uses a custom 128-bit characteristic:

6af87926-dc79-412e-a3e0-5f85c2d55de2

That characteristic is flagged to accept indicate and write requests. All of the following commands are write requests.

Command List

Name	Command	Arguments	Description
Head Up	0x550154	None	Start elevating the head position.
Head Down	0x550356	None	Start lowering the head position.
Foot Up	0x550257	None	Start elevating the foot position.
Foot Down	0x550451	None	Start lowering the foot position.
Stop Motion	0x55FFAA	None	Stops head and foot motion.
Set Head Position	0x5551NNCC	0 - 0x64	Sets the absolute head position.
Set Foot Position	0x5552NNCC	0 - 0x64	Sets the absolute foot position.
Head Massage Up	0x553164	None	Start increasing the head massage intensity.
Head Massage Down	0x553366	None	Start decreasing the head massage intensity.
Foot Massage Up	0x553267	None	Start increasing the foot massage intensity.
Foot Massage Down	0x553461	None	Start decreasing the foot massage intensity.
Stop Massage Motion	0x550055	None	Stop increasing or decreasing foot or head massage intensity.
Stop Massage	0x553560	None	Stop head and foot massage immediately.
Set Head Massage Level	0x5553NNCC	0 - 0x0A	Set the absolute head massage intensity.
Set Foot Massage Level	0x5554NNCC	0 - 0x0A	Set the absolute foot massage intensity.
Full Body Massage	0x554NCC	1 - 4	Start a full body massage, four different varieties (1-4).
Flat	0x550550	None	Flatten the head and foot positions.
Zero G	0x551540	None	Put the head and foot positions into "Zero G" mode.
Anti-snore	0x551643	None	Put the head and foot positions into anti-snore mode.
Mem Recall	0x551NCC	1 - 4	Recalls memory position 1 - 4.
Mem Save	0x552NCC	1 - 4	Saves current position in memory position 1-4.
Light Toggle	0x555B	None	Toggles the under-bed night-light on and off.
Light Brightness	0x555ANNCC	0 - 0x7C	Adjusts the night-light brightness.
Light Timer	0x555FNNNN	Seconds	Sets the number of seconds until the light automatically turns off, 0 to disable timer.

Note: CC in the above table is checksum. Checksum is calculated by xor-ing all of the preceeding command bytes together.

For instance take the "Set Head Position" command (say we're trying to set the value 10):

55 51 0a 00

The checksum would be:

0x55 ^ 0x51 ^ 0x0a = 0x0e

Reading the Current Status of the Bed

If you subscribe for notifications on the characteristic you should get one of three message types:

Name	Pattern	Description
Protocol Version	0x56:VV:VV:VV	The version of the protocol, V's are an ASCII string (e.g. '1.0').
Current Status	0x55:00:HH:FF:MH:MF:U1:U2:CC	Current status of the bed where: HH = Head Position FF = Foot Position MH = Massage Head Level HF = Massage Foot Level U1 = Unknown, varies per bed but doesn't seem to change otherwise. U2 = Unknown, varies per bed but doesn't seem to change otherwise. CC = XOR checksum of the previous bytes.
Heartbeat	0x55:66:11	Unknown, but appears to be a heartbeat of some kind. Data doesn't appear to change.

swedishborgie/bedrest