a137x/opensleep

platform for sleep hacking and research

OpenSleep

The development of the hardware and software for this system started and most of it was done during my first semester at the Fluid Interfaces Group of the MIT Media Lab. This technology was used for many projects, Dormio being the most notable. This project is part of a larger iniatiative called Engineering Dreams, which seeks to build technology that interfaces with the sleeping mind.

Hardware

Components

Qty	Value	Device	Where
2	.1uF	CAP_CERAMIC0603	Digikey: 399-1095-1-ND
1	1uF	CAP_CERAMIC0603	Digikey: 399-5090-1-ND
1	1K	R-US_0503	Digikey: YAG1237CT-ND
2	100K	R-US_R0603	Digikey: YAG1235CT-ND
3	1x2	1X2-SMD-HEADER	Digikey: S1113E-36-ND
1	1x3	1X3-SMD-HEADER	Digikey: S1113E-36-ND
1	1x5	1X5-SMD-HEADER	Digikey: S1113E-36-ND
1		RFD22301	Digikey: 1562-1016-ND
1	SPDT	SLIDE-SWITCH	Digikey: 401-2014-1-ND
1	Color	LED-1206-SMD	Digikey: 516-1436-1-ND
1		HR-SENSOR	Adafruit: 1093
1		FLEX-SENSOR	Adafruit: 1070
2		EDA-ELECTRODE-CABLE	OpenBCI
2		EDA-ELECTRODE	OpenBCI

PCB

Design

Schematic

Layout

Fabrication

You can either mill the PCB yourself using a CNC mill, or buy one from a PCB manufacturer.

Mill it

The original PCB for Doormio was made using a Roland MDX-20. All the PNG files used to mill the board can be found in the following folder:

/hardware/PNG

Order it

Oshpark!

Software

Web App

Run the app:

node web_app/app.js

Open the app:

http://localhost:3000

Mobile App

Acknowledgements

Adam Horowitz led the experiment design and execution to validate the system, Oscar Rosello the interaction and form factor, and Eyal Perry the iOS app development, signal processing and classification (and great mustache). Matthew Ha continued the development of the iOS app and analysis of biosignals for sleep staging.