[Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

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Camble
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[Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby Camble » Mon Feb 06, 2017 7:18 am

I've decided to open another pre-order thread for the BangGood edition of my Safe Shutdown Switch.

For issues with your PCB, please include your E-mail address in your PM. I cannot use your PayPal transaction ID to look up your details.

You can also contact me on Discord


Update 28th Feb 2017: The order process has been started! I'll update as the boards are being assembled. Anyone can still place an order for now.

Update 18th Mar 2017: I received an Email this morning to say that the boards have been assembled and are ready for shipping. I should have them very soon!

Summary:
  • Works with BangGood / GearBest or any generic power supply module
  • Works with software to issue a shutdown command to the Pi
  • Keeps system powered until Pi shuts down
  • Works with original DMG-01 switch
  • Optional DPDT switch (included)
  • Low battery sensing (alerts at 3.3v)
  • Protective diode for your keep-alive pin (prevents GPIO22 from being pulled to 5v)
  • 2oz copper rated for 1A (tested up to 1.5A @ 5.1v)
  • Screw hole!
Image

Header pads are shape-coded:
  • Square Power Output Headers (Vout/Gnd)
  • Octagonal Power Supply Headers (Vin/Gnd/B+)
  • Circular Raspberry Pi Headers (3.3v/Shut-off/Keep-on/Low Battery GPIO)
Supplied:
  • Safe Shutdown PCB v1.0.
  • DPDT Switch.
Required:
Wiring guide:
  • Octagonal Vin is the positive voltage connection on the BangGood supply.
  • Octagonal Gnd is the negative voltage connection on the BangGood supply.
  • Octagonal B+ is the positive battery connection on the BangGood supply.
  • Square Vout is the positive connection for supplying your components with power.
  • Square Gnd is the negative connection for supplying your components with power.
  • Circular 3.3v is the 3.3v pin (physical pin 1 or 17)
  • Circular On is the keep-alive pin, usually BCM/GPIO22 (physical pin 15)
  • Circular Off is the shutdown pin, usually BCM/GPIO27 (physical pin 13)
  • Circular Low is the low battery pin, usually BCM/GPIO17 (physical pin 11)

Additional things to note:
  • The power output headers can be connected to a power distribution strip instead of directly to the Pi.
  • Low battery sensing voltage can be altered by replacing R1 and R2 with different value resistors.
  • If you do not wish to use the low battery sensing, you must bridge B+ with PP1 or amend the power monitor script.
  • After low battery shutdown, the power switch must be placed in the OFF position to prevent further battery drain.
  • You may need a tiny blob of hot glue to prevent the PCB from rotating around the screw hole.
  • The final product will be green, to match the colour of the BangGood supply.

Image

Please remember to install the Power Monitor script, otherwise the Pi will not shut down.
Also add the following line to /boot/config.txt, or the PowerBoost will not stay on while the Pi shuts down.

Code: Select all

dtoverlay=gpio-poweroff,gpiopin=22,active_low="y"

Please take care when handling and soldering these boards. They include static-sensitive components and have a low thermal mass. Damaged boards with burnt traces or pads cannot not be replaced.

Here's some nice pictures of the fully assembled product. (click for higher resolution)

Also available:
I also have a limited quantity of the following heatsinks. Help keep your temperatures down passively.
Click the images below to add to your order! They come with thermal tape to fix them on.

This spiky heatsink fits the Raspberry Pi CPU.
Image
Image


[+] More Pictures
Image
Image
Last edited by Camble on Sat Mar 18, 2017 3:21 am, edited 2 times in total.

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xne0n
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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby xne0n » Mon Feb 06, 2017 9:19 am

Cool ! Ordered one ✅

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby Jetpro » Tue Feb 07, 2017 1:09 pm

Ordered one
Thanks by advance

KB

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby DanielL » Tue Feb 07, 2017 2:54 pm

Sorry if it's already mentioned, but I don't understand how to pre-order one of this Safe Shutdown boards
I really want one of them :(

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby Jetpro » Tue Feb 07, 2017 11:18 pm

Hello

clic on add to cart on the first post (you must have a PayPal account)

regards

KB

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby DanielL » Tue Feb 07, 2017 11:43 pm

My Adblock has deleted the button :o

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby Camble » Wed Feb 08, 2017 5:26 am

DanielL wrote:Sorry if it's already mentioned, but I don't understand how to pre-order one of this Safe Shutdown boards
I really want one of them :(


You have PM

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby crisruv » Thu Feb 09, 2017 1:55 am

Will you also be posting up wiring diagrams? I've been out of the circuit engineering game for a while and basically will try my best to figure it out.. but would be interested in wiring diagrams specifing GPIO details if possible... etc.

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby marcushg » Sat Feb 11, 2017 8:05 am

i still have some safeshutdown from powerboost edition, is it possible to use them with the banggood supply (i also have a couple of those)? thanks...

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Re: [Pre-Order] Safe Shutdown v1.0 for BangGood/GearBest/Generic power Supply

Postby Camble » Mon Feb 13, 2017 4:50 am

marcushg wrote:i still have some safeshutdown from powerboost edition, is it possible to use them with the banggood supply (i also have a couple of those)? thanks...


Nope! That's why two editions exist.


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