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by rhildinger
Wed Jul 11, 2018 9:21 pm
Forum: General discussion
Topic: Setting a static IP address from SD card before boot
Replies: 20
Views: 5772

Re: Setting a static IP address from SD card before boot

Three possible ways. Use a Ubuntu/Debian PC to edit the file. For the sake of completeness, there is actually a 4th way to edit files on the root partition of a Pi SD card, but this method requires $. You can install an extFS driver for Mac that will allow it read and write to Linux ext partitions:...
by rhildinger
Mon May 21, 2018 8:27 pm
Forum: General discussion
Topic: Battery power / power display in termial
Replies: 3
Views: 200

Re: Battery power / power display in termial

drgeoff is right. You would need an i2c voltmeter to act as the battery monitor, and then you would have to derive a voltage to charge mapping, since there is no way to actually measure the charge level of a battery.
by rhildinger
Mon Apr 30, 2018 8:05 pm
Forum: Astro Pi
Topic: Replica Astro Pi Case still available?
Replies: 11
Views: 7513

Re: Replica Astro Pi Case still available?

Looks like your site is down again. Did someone hack you again?
by rhildinger
Mon Apr 16, 2018 2:58 pm
Forum: General discussion
Topic: Driving a single WS2811/WS2812 SMD, not a strip
Replies: 8
Views: 845

Re: Driving a single WS2811/WS2812 SMD, not a strip

Honestly, if you want these 5V addressable LED's to work reliably and consistently, you're going to have to use a level converter to bump the GPIO output from 3.3V to 5V. It's a pain I know, but every other method is essentially a work around that will work for some LEDs but not for others.
by rhildinger
Thu Apr 05, 2018 9:51 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 189
Views: 48565

Re: RPi 3B+ gigabit ethernet bad download speeds.

It wasn't my intention to make a trollbait post, but I guess that's the way it came out....[sigh]... sorry about that...
by rhildinger
Thu Apr 05, 2018 7:41 pm
Forum: General discussion
Topic: RPi 3B+ gigabit ethernet bad download speeds.
Replies: 189
Views: 48565

Re: RPi 3B+ gigabit ethernet bad download speeds.

resiakt (tkaiser),

In all honesty, your posts are becoming childishly tiresome and pointless. What good information you are adding to the thread is being outweighed by your obsession over nonexistent censorship. Please, give it a rest...

-Robert
by rhildinger
Thu Mar 29, 2018 8:35 pm
Forum: Astro Pi
Topic: Replica Astro Pi Case still available?
Replies: 11
Views: 7513

Re: Replica Astro Pi Case still available?

What are the differences between the APEM 104350003 and APEM 8632A switches, besides one being much more expensive than the other? Do they have the same travel/feel? Are the 104350003 switches so much more expensive simply because of their higher reliability rating, or is there something else? Just ...
by rhildinger
Thu Mar 29, 2018 4:07 pm
Forum: General discussion
Topic: Sandisk A2 class micro sd card the Pi performance king?
Replies: 3
Views: 714

Re: Sandisk A2 class micro sd card the Pi performance king?

Doesn't appear to be in general availability yet...
by rhildinger
Thu Mar 29, 2018 2:57 pm
Forum: General discussion
Topic: Sandisk A2 class micro sd card the Pi performance king?
Replies: 3
Views: 714

Sandisk A2 class micro sd card the Pi performance king?

Sandisk has released an A2 application class micro sd card that at least on paper will be the undisputed performance king for the Pi. Only trouble is, it costs as much as 10 Pi 3's and is way overkill for the majority of people. Specs are very impressive: 400GB, A2 application class (4000/2000 minim...
by rhildinger
Thu Mar 22, 2018 7:12 pm
Forum: Astro Pi
Topic: Replica Astro Pi Case still available?
Replies: 11
Views: 7513

Replica Astro Pi Case still available?

I noticed that the website for the Replica Astro Pi flight case is down ( www.astropicase.com ). Are these cases no longer available, or is this just a temporary glitch?
by rhildinger
Tue Mar 20, 2018 4:02 pm
Forum: General discussion
Topic: 3B+ PoE pin description / documentation
Replies: 28
Views: 9404

Re: 3B+ PoE pin description / documentation

Not another HAT, but certainly another compatible add-on board. HAT is a spec which an includes EEPROM for identification. Since the EEPROM would be on the same pins and the same address, you can't really stack them and expect things to 'just work'. Ah, yes - thanks for that clarification! I always...
by rhildinger
Tue Mar 20, 2018 3:51 pm
Forum: General discussion
Topic: 3B+ PoE pin description / documentation
Replies: 28
Views: 9404

Re: 3B+ PoE pin description / documentation

Judging strictly from the early pre-release photos posted on pishop.us, the 40 pin header section looks like it is set up the same way as the sense hat. On the underside of the POE hat board is a surface mount 40 pin header block that allows pass through of pins, so if you stack a double length head...
by rhildinger
Mon Mar 19, 2018 10:11 pm
Forum: General discussion
Topic: RPi 3B+ Heat/CPU related improvements.
Replies: 50
Views: 11158

Re: RPi 3B+ Heat/CPU related improvements.

jamesh wrote:
Mon Mar 19, 2018 3:48 pm
I've already had one cockwomble on the blog stating I need psychiatric help, so I'm pretty much prepared.
"Cockwomble" is now my favorite word. I shall be overusing it with impunity to annoy my coworkers...
by rhildinger
Mon Mar 19, 2018 7:49 pm
Forum: General discussion
Topic: 3B+ PoE pin description / documentation
Replies: 28
Views: 9404

Re: 3B+ PoE pin description / documentation

It seems PiShop.US is jumping the gun a bit, I don't believe they know they actual price, as the POE HAT isn't actually launched yet. but yes, at least they are not confusing it with an older POE solution for the PI. I wish we could see the back of the board, so we could see how much electronics th...
by rhildinger
Mon Mar 19, 2018 4:48 pm
Forum: General discussion
Topic: 3B+ PoE pin description / documentation
Replies: 28
Views: 9404

Re: 3B+ PoE pin description / documentation

pishop.us has the POE hat up on their website for $49.95, though not in stock yet. Is that going to be the actual sale price of the POE hat, or is that an early misprint from pishop.us? The price seems a little high...
by rhildinger
Wed Feb 08, 2017 8:22 pm
Forum: Compute Module
Topic: It you want/need I/O board only
Replies: 8
Views: 1472

Re: It you want/need I/O board only

My fear was that the deal might be too good to be true, since the cost through digikey was so much less than through any other vendor. I thought digikey may have made a stocking mistake or something similar and had mislabelled a bunch of older CMIO boards for sale as v3 boards. Glad to see that I ha...
by rhildinger
Tue Feb 07, 2017 5:39 pm
Forum: Compute Module
Topic: It you want/need I/O board only
Replies: 8
Views: 1472

Re: It you want/need I/O board only

Thanks for the heads up! These are also available from the U.S. digikey website for $37 (vs. $120 from alliedelec.com): http://www.digikey.com/products/en/development-boards-kits-programmers/evaluation-boards-expansion-boards/797?k=compute%20module&newproducts=1 I ordered one, let's hope it's the ri...
by rhildinger
Wed Jun 22, 2016 2:44 pm
Forum: General discussion
Topic: Breathing new life into the compute module platform
Replies: 1
Views: 672

Breathing new life into the compute module platform

I realize there is a separate subforum for the compute module, but I wanted to post this here so it comes to the attention of those who don't peruse that subforum often. I apologize if I have broken any forum rules... Anyway, there is group in the UK who are building a general purpose motherboard fo...
by rhildinger
Mon Jun 20, 2016 5:30 pm
Forum: Compute Module
Topic: Raspberry Pi Compute Module Motherboard
Replies: 9
Views: 4432

Re: Raspberry Pi Compute Module Motherboard

Have you managed to test the mpcie slot with either of these two types of small SSDs: 1. mPcie SSD drive 2. mSata SSD drive I figure the mSata drive is definitely out since you electrically defined the slot as mPcie, but I'm curious if an mPcie-based SSD drive would work correctly... Thanks! -Robert
by rhildinger
Thu Jun 16, 2016 9:47 pm
Forum: Compute Module
Topic: Compute module 3 details?
Replies: 40
Views: 16727

Re: Compute module 3 details?

Whether it works in the original carrier board I'm not sure, as that supplied the core voltage regulator's VBAT from the 3V3 / 1A regulator, which might not be beefy enough for the 2837 running at full tilt. It's a simple mod to divert unregulated, unlimited 5V on the CMIO to VBAT instead - I've do...
by rhildinger
Thu Jun 16, 2016 5:02 pm
Forum: Advanced users
Topic: Neopixel on Raspi 3
Replies: 13
Views: 28271

Re: Neopixel on Raspi 3

Thanks, yes, I tested with a meter and I am sure that the Level-converter Chip - 74AHCT125 is working. Now I need to test the GPIO. However, I wonder if GPIO will ever have an issue. I wonder you are running into the same issue that we have with driving the HUB75 RGB matrix display panels. The prob...
by rhildinger
Fri Jun 10, 2016 5:23 pm
Forum: General discussion
Topic: Small 2 Port USB Hub?
Replies: 17
Views: 3059

Re: Small 2 Port USB Hub?

Java,

Do a google search on "Pogo pin pi zero usb hub". There are several iterations of these hubs that mount to the bottom of the pi zero and use pogo pins to make the power and USB connections back to the pi zero. I think one of these may be just what you are looking for.

-Robert
by rhildinger
Thu Jun 09, 2016 11:36 pm
Forum: Compute Module
Topic: Raspberry Pi Compute Module Motherboard
Replies: 9
Views: 4432

Re: Raspberry Pi Compute Module Motherboard

Couple of questions about this motherboard: 1. One of the nice things about the CM IO board included in the dev kit is that GPIO pins 0 through 47 are accessible via header, not just 2-27 that are exposed through the 40 pin HAT connector. Are GPIOs 0, 1, and 28-47 exposed on this motherboard? 2. How...
by rhildinger
Thu Jun 09, 2016 6:11 pm
Forum: Compute Module
Topic: Raspberry Pi Compute Module Motherboard
Replies: 9
Views: 4432

Re: Raspberry Pi Compute Module Motherboard

Very cool! I especially like ditching the micro USB power connection. I'll be backing you guys for at least the My-Pi motherboard. I only hope the RPi foundation comes through with the CM3...

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