Introducing The Sleepy Pi - A Sleep mode and Arduino I/O brd


6 posts
by fuffkin » Fri Jun 14, 2013 8:42 pm
Hi All,

I’ve been testing some Sleepy Pi prototype boards and am just about to order some next revision boards.

I’d like to offer some of this batch of boards to the community to test / use and generate some valuable feedback.

The Sleepy Pi is essentially a Smart Power Management board for the Raspberry Pi that includes a low power Arduino that stays powered when the Raspberry Pi is off. In this way it can reduce the overall power used by the RPi, particularly when powered from batteries in applications where the RPi doesn’t need to be on all the time. You can think of it as adding a “Sleep” mode to the Raspberry Pi, because the Arduino can periodically wake the RPi up to perform a task and then put it back to sleep. As a side benefit you also get some Arduino I/O to play with, like Analogue Inputs and PWM’s.

Sleepy-Pi-Concept-Diagram.jpg
Sleepy Pi Block Diagram
Sleepy-Pi-Concept-Diagram.jpg (43.1 KiB) Viewed 15242 times


Key benefits include:

    - Reduce the effective Power consumption of the Raspberry Pi
    - Power directly from batteries up to 17V
    - Adds Arduino I/O to the Raspberry Pi such as Analogue In or PWM
    - Break out the Raspberry Pi GPIO & Arduino I/O to screw terminals
    - Prototyping area and expansion headers for daughter boards
    - Power button for manual switch on/off
    - “Wake” or “Sleep” in response to events or triggers such as:
      - Analogue value crosses a threshold
      - Digital input changes
      - Specific time to “wake” via Real-time Clock
If you think you might have a cunning plan to use a Sleepy Pi and have some time to put in to test it, then please let me know either by a comment here or contacting me via the website at http://www.spellfoundry.com

If you are interested in more information, then please stop by the website and sign up for updates.

Jon
Sleepy Pi - Extend RPi battery life with a plugin Power Management & Arduino I/O board
http://www.spellfoundry.com
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Location: United Kingdom
by munkee1337 » Mon Aug 05, 2013 11:58 am
Hi I wouldnt mind doing some testing with this. I am looking to work on a low powered car tracking device (run purely off AA batteries for example) and I am currently battling with the best way to get the most efficient power usage out of the pi without having to touch the cars electrics. This project looks ideal as I have actually now started to move my thinking towards using an arduino and completely ditching the pi from the project. Looking at your proposal I would still be able to use the pi though which is excellent.

Im thinking of wiring up a motion sensor to the arduino to detect movement of the pedals when someone gets in to the car. This would then call the pi to boot up where GPS logging can begin. I would then be able to push the data out every minute to my web server for tracking ui.
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by fuffkin » Mon Aug 05, 2013 12:19 pm
Munkee,

I like your style, a devious and cunning application (so cunning you could pin a tail on it and call it a weasel)! It's just the sort of cross-over project this was designed for - something that the arduino is under-powered and the Pi is a bit too hungry. This combines the best of both worlds.

Either PM me with your details or drop them on a contact form over on the web-site.

Jon
Sleepy Pi - Extend RPi battery life with a plugin Power Management & Arduino I/O board
http://www.spellfoundry.com
Posts: 92
Joined: Thu Mar 07, 2013 10:50 pm
Location: United Kingdom
by sghsmorgan » Tue Oct 15, 2013 6:52 am
I'd love to test one! I'm building a RasPi Car Computer, and would like to turn on & off via ignition.
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Joined: Sun Jan 06, 2013 5:48 pm
by fuffkin » Tue Oct 15, 2013 7:45 am
Hi sghsmorgan,

Cool project! As a general update, we've got some Beta testers putting the boards through their paces right now and so far so good. I would hope to release the first boards for sale sometime early November, so keep checking back - I'd love you to use a Sleepy Pi.

If all you need to do is switch on / off the RaspPi with the ignition, then you might want to also have a look at https://www.shopstarter.com/p/1312527055/raspberry-pi-car-power-supply-ignition-switch/ from http://www.mausberrycircuits.com/ - it might be all you need.

Regards

Jon
Sleepy Pi - Extend RPi battery life with a plugin Power Management & Arduino I/O board
http://www.spellfoundry.com
Posts: 92
Joined: Thu Mar 07, 2013 10:50 pm
Location: United Kingdom
by fuffkin » Fri Nov 29, 2013 6:26 pm
Hi All,

Just a quick note to say that the first batch of boards is now in production and expected back within the next couple of weeks.

As the Thanksgiving / Black Friday / Cyber Monday thing seems to have spread to this side of the pond as far as discounts go, I've opened up the store early for pre-orders on the first batch with 20% off until the end of Monday 2nd (US PST) :D
Sleepy Pi - Extend RPi battery life with a plugin Power Management & Arduino I/O board
http://www.spellfoundry.com
Posts: 92
Joined: Thu Mar 07, 2013 10:50 pm
Location: United Kingdom