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by Simple
Sat Jan 26, 2019 12:26 am
Forum: General discussion
Topic: sUpPi UPS power supply for Raspberry Pi
Replies: 5
Views: 234

Re: sUpPi UPS power supply for Raspberry Pi

Thanks again The battery in the final design is an efest IMR lipo capable of 3A output and in the range of 350mah. Best I could find. The purpose of the UPS is not for extended operation but for delivering a stable voltage and properly cycling the Raspberry Pi in the events of power losses etc..the ...
by Simple
Fri Jan 25, 2019 9:30 pm
Forum: General discussion
Topic: sUpPi UPS power supply for Raspberry Pi
Replies: 5
Views: 234

Re: sUpPi UPS power supply for Raspberry Pi

Thanks for the reply

It's a lipo 10440 battery (AAA size)
Should last years

Thanks for the interest.
by Simple
Fri Jan 25, 2019 6:04 pm
Forum: General discussion
Topic: sUpPi UPS power supply for Raspberry Pi
Replies: 5
Views: 234

sUpPi UPS power supply for Raspberry Pi

Hello Just wanted to introduce a filesafe UPS for the Raspberry Pi system. No firmware required and simple device tree overlay configuration. Functionality will keep your Pi powered in the event of power loss and shut it down safely and cleanly and also powering and booting the system upon power rec...
by Simple
Sun Jul 08, 2018 3:38 pm
Forum: Graphics, sound and multimedia
Topic: Audio Stream Low Latency
Replies: 12
Views: 7222

Re: Audio Stream Low Latency

Thanks for all the posts.. I am looking for something similar, however, my setup I want to use spotify on my Ubuntu laptop and stream audio to a raspberry pi over a direct ethernet connection between the two that I share the internet with from the laptop. I have attempted to get various methods work...
by Simple
Sun Apr 22, 2018 1:34 am
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

I would also like to confirm to the original poster that the action using a P-CH MOSFET results in the same type of preferable action for me, and potentially them. Using "one that pulls low (9-27) for active-high mode." mine I used GPIO17 and a P-CH MOSFET powering a LED connected to the drain and t...
by Simple
Tue Apr 17, 2018 10:47 pm
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

Thanks Phil

I hoped that the overlays would take care of business by themselves. Wasn't aware that there would be other dependencies.
At least i've got a workaround at the moment. It;l most likely be incorporated better in the not distant future.

S
by Simple
Tue Apr 17, 2018 2:29 am
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

Thanks again Phil 1K resistor and button between pin 37 and 39 and still no action Using the plugin through the Volumio interface and I am able to shutdown using the pin, however, I would prefer using the overlay This could be an issue in using Volumio and some missing packages. volumio@volumio:~$ r...
by Simple
Mon Apr 16, 2018 2:53 pm
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

Message to the original poster GeorgeIoak I've been running my tests with a DMM and wasn't getting the actual logic signals from the pin using the gpio-poweroff overlay until I attached a LED to the pin to notice the same delay that you have. I have been reading the voltage from the internal pull-up...
by Simple
Sun Apr 15, 2018 11:17 pm
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

Thanks again Phil Interestingly, my old school spinny hard drive doesn't shutdown using these overlays. My old method would flush and shutdown the drive on powerdown. I would hear a "click" and the light would turn off. Using the poweroff overlay, it appears to do some action, but then it just keeps...
by Simple
Sun Apr 15, 2018 9:18 pm
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

Thanks Phil Been playing around a little with it and now have the "dtoverlay=gpio-poweroff,gpiopin=5,active_low="y"" working like a charm. It runs high upon power connection and falls low at shutdown (halt), however, "dtoverlay=gpio-shutdown,gpio_pin=6" yields no results when shorting to ground, nei...
by Simple
Sun Apr 15, 2018 6:58 pm
Forum: Device Tree
Topic: Confirmation of gpio-poweroff Behavior
Replies: 19
Views: 8248

Re: Confirmation of gpio-poweroff Behavior

So if I am reading this correctly.. Setting both overlays GPIO21 is just an indicator of the PI status, coming up as soon as it can, and dropping low after all systems flushed? GPIO20 is the input from a button or other method, pulling low, initiating the shutdown process? I ask because for the whil...
by Simple
Mon Mar 12, 2018 2:58 pm
Forum: Device Tree
Topic: Mute GPIO
Replies: 21
Views: 3817

Re: Mute GPIO

Huge thank yous!

Works beautifully!
Exactly what I needed :!:
by Simple
Mon Mar 12, 2018 2:24 am
Forum: Device Tree
Topic: Mute GPIO
Replies: 21
Views: 3817

Re: Mute GPIO

Hello Seems the right place to ask a similar question.. I have a PCM5122 DAC that I built myself and am using the IQaudio DAC plus driver for the time being.. This driver uses the mute function as noted above, and from what I can tell, it has two settings, on all the time (unmute) or only active whi...
by Simple
Mon Aug 21, 2017 2:25 pm
Forum: General programming discussion
Topic: media center driving relays, questions....
Replies: 1
Views: 863

Re: Hello media center type questions

Just wanted to drop in and give a big ol thanks to the vibrant forum community here for all the excellent insight on my project!
by Simple
Tue Aug 01, 2017 7:18 am
Forum: General programming discussion
Topic: media center driving relays, questions....
Replies: 1
Views: 863

media center driving relays, questions....

I plan on constructing a media center using the pi3 and have some questions regarding the gpio in that I intend to use them to drive some relays. I'm planning to make my own boards using the pcm5122 along with a power switch. The toughest part for me at the moment is the relay part. What I'd like to...

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