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Author Topic: RetroFlag NesPi Case Safe Shutdown Modification  (Read 3363 times)

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Grasshopper

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RetroFlag NesPi Case Safe Shutdown Modification
« on: October 29, 2017, 02:10:15 pm »
As some of you will be aware, the RetroFlag NesPi case is fitted with working power and reset buttons.

Unfortunately, all the reset button actually does is momentarily cut the power. As this can already be done using the power button, the reset button effectively serves no useful purpose in its default configuration.

Because of this, a number of people have devised mods that enable the reset button to trigger a safe shutdown script by shorting one of the Pi's GPIO pins. This is preferable to simply cutting the power, as cutting the power can theoretically lead to SD card corruption if it's done at the same time as the card is being written to.

I therefore decided to apply one of these mods to my case. After considering a number of approaches that seemed overly complicated, I decided to base my mod on the following YouTube video created by Glen Planamento:

https://www.youtube.com/watch?v=kM-xUC7_A_U

Glen's approach seemed far simpler and safer than the alternatives. Basically, all he did was to isolate the reset switch from the rest of the circuitry by cutting some traces on the PCB. He then soldered on some wires to bypass the reset switch. And finally, he connected one side of the switch to ground, and the other to GPIO pin 5.

I did however deviate from Glen's mod in the following ways:

  • In his video, Glen cuts four traces on the PCB to bypass the switch. However, before carrying out the mod, I did a continuity check across all of the pins on the PCB, and noticed that two of the traces are actually a single continuous trace that already bypasses the reset switch. Therefore, you only need to cut two of the four traces, and solder on a single bypass wire.
  • I chose to solder the bypass wire to the underside of the PCB, as I thought this would be neater, and slightly easier to solder.
  • I also decided to connect one side of the switch to a ground connection on the PCB itself, instead of using one of the Pi's ground GPIO pins.

"Patriotism is the last refuge of the scoundrel." - Samuel Johnson

PL1

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #1 on: November 20, 2017, 06:57:21 pm »
Heads up for Amazon Prime members -- the case is on sale for the next 6 hours for $15.99.   :o

https://www.amazon.com/Controller-YIKESHU-8Bitdo-Nintendo-Carring/dp/B073ZC4TZY/

Get 'em while you can.


Scott

thomas_surles

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #2 on: November 20, 2017, 07:19:36 pm »
Its showing full price for me idk.

yotsuya

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #3 on: November 20, 2017, 07:20:46 pm »
Same here. Good job, Scott.
***Build what you dig, bro. Build what you dig.***

PL1

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #4 on: November 20, 2017, 07:27:37 pm »
The "Lightning Deal" sold out already.  :embarassed:

There's still a few $23.99 case/fan combos left. (same link)


Scott
« Last Edit: November 20, 2017, 07:30:57 pm by PL1 »

PL1

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #5 on: November 20, 2017, 08:10:30 pm »
$15.99 "Lightning deal" on the case is available again.   :dizzy:

"Deal is 62% Claimed"


Scott
EDIT: . . . and it's gone again.   :(
« Last Edit: November 20, 2017, 08:16:04 pm by PL1 »

yotsuya

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #6 on: November 20, 2017, 08:21:47 pm »
I bet the boys in school called you a tease...

***Build what you dig, bro. Build what you dig.***


1500points

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #8 on: November 21, 2017, 07:53:56 am »
Good work on your project.
That is a good case for sure.
I've noticed on the FB groups that this case really put a dent in the 3d case sellers.
« Last Edit: November 21, 2017, 08:05:39 am by 1500points »

PL1

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #9 on: December 01, 2017, 10:36:33 pm »
Another heads up for Amazon Prime members, this time with 8 hours of lead time.   :lol

Cyber Monday Deals -- Electronics, Office and Business -- Computers & Accessories -- Computer Components shows that the Retroflag case goes on sale again at 5:40am.


Scott
EDIT: Sale supposedly went active, but prices are still normal and the sale listing was pulled from Computer Components.   :banghead:
(Screencap is from an un-refreshed browser page.  30 minutes later and it still shows "0% claimed".  :angry:)
« Last Edit: December 02, 2017, 07:18:30 am by PL1 »

Grasshopper

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #10 on: December 02, 2017, 10:11:59 am »
If anyone's getting impatient waiting for RetroFlag to create a SNES version of this case, I've noticed that those cheeky Chinese clone makers have now started selling their NES on a chip boards rehoused in rather nice looking Super Famicom style cases:

It shouldn't be too hard to hack a Pi into one of these cases.
« Last Edit: December 02, 2017, 02:33:24 pm by PL1 »
"Patriotism is the last refuge of the scoundrel." - Samuel Johnson

nitrogen_widget

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #11 on: December 05, 2017, 03:38:14 pm »
My Nespi arrive today. $19 shipped.
Can't wait to put my rpi in it.

I threw a NES and SNES mini image on one of my rpi 3's
It's pretty slick.
took longer to download and write the 3gb image than it did to slide in the card and configure the controller.
I was playing games 15 minutes after first boot.


nitrogen_widget

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #12 on: December 06, 2017, 11:02:01 am »
This Nespi case is nice.
so nice i've given away my 3d printed case to a fellow nerd.
I'm def. doing the shutdown mod.

just need different controllers. The NES replica ones are not very comfortable to hold.
they make my hands cramp. lol

Grasshopper

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #13 on: April 15, 2018, 07:53:07 am »
Well it looks like Retroflag have now introduced a new version of this case with shutdown and reset buttons that trigger scripts. So this mod is hopefully now redundant.

http://retroflag.com/

Interestingly, they're also claiming that someone is producing 'fake' Nespi cases, and it's the fake ones that are causing the low vortage warnings that some people have reported.
"Patriotism is the last refuge of the scoundrel." - Samuel Johnson

JDFan

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #14 on: April 15, 2018, 10:48:15 am »
Well it looks like Retroflag have now introduced a new version of this case with shutdown and reset buttons that trigger scripts. So this mod is hopefully now redundant.

http://retroflag.com/

Interestingly, they're also claiming that someone is producing 'fake' Nespi cases, and it's the fake ones that are causing the low vortage warnings that some people have reported.

Yeah got an E-mail the other day from the supplier I had bought the 10 from last year saying they had the new model in stock now for $13.50 (didn't mention how much shipping would be) - seems they added a switch to either use a script for safe shutdown or the normal immediate shut down/reset. Haven't heard from anyone that has purchased the new model yet so not sure if it works well or not but nice to see them add that in.

antoni

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #15 on: May 06, 2018, 12:41:29 am »
This is the best and easy design on the Internet.

Working with my RPI 3B, and Recalbox
https://github.com/recalbox/recalbox-os/wiki/Add-a-start-stop-button-to-your-recalbox-(EN)

Thank you very much, my button is working.

Grasshopper

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #16 on: June 04, 2018, 06:57:58 pm »
Thank you very much, my button is working.

You’re welcome.

If anyone's interested, there's a very promising looking European SNES / Super Famicon styled Pi case coming out in the next month or so:

https://www.youtube.com/watch?v=Hz9ZAgcxb9Y

If it's as good as it looks in the video, I think it could give the NesPi case a run for its money. Apparently, it has working power and reset buttons, and the possibility of routing two of the USB connectors to the front of the case with a bit of hacking.
"Patriotism is the last refuge of the scoundrel." - Samuel Johnson

Drnick

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Re: RetroFlag NesPi Case Safe Shutdown Modification
« Reply #17 on: June 05, 2018, 03:29:34 pm »
Thank you very much, my button is working.

You’re welcome.

If anyone's interested, there's a very promising looking European SNES / Super Famicon styled Pi case coming out in the next month or so:

https://www.youtube.com/watch?v=Hz9ZAgcxb9Y

If it's as good as it looks in the video, I think it could give the NesPi case a run for its money. Apparently, it has working power and reset buttons, and the possibility of routing two of the USB connectors to the front of the case with a bit of hacking.


Damn, that looks like a nice case,  May finally find a use for that Pi we have sitting around at work, may have to get some 8bitdo controllers as well :)

  
 

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