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by alphanumeric
Mon Jul 08, 2019 3:28 pm
Forum: General discussion
Topic: Connections on Raspberry pi
Replies: 2
Views: 104

Re: Connections on Raspberry pi

This "might" help.
https://pinout.xyz/#
by alphanumeric
Mon Jul 08, 2019 3:22 pm
Forum: General discussion
Topic: Power Supply for multiple RAPI4B+
Replies: 7
Views: 355

Re: Power Supply for multiple RAPI4B+

I have one of these, https://www.adafruit.com/product/658 It's 5V and up to 10A. Barrel connector though. I just plug it into this, https://www.adafruit.com/product/610 panel mount jack. Then feed my Pi, 7 inch touch screen, audio amp, etc with wires and connectors from there. Its a portable bread b...
by alphanumeric
Mon Jul 08, 2019 8:50 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

Is it done by robots yet? Most of the board assembly work is done by robots. The components are too small to be done by hand in any sort of quantity, but other parts are handled by actual humans which is great. IIRC the Sony factory in Wales used to make old CRT televisions and was close to being s...
by alphanumeric
Mon Jul 08, 2019 8:16 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I don't think it was very long ago that the CM3 was released? Might be a while before a CM4 shows up. I just went by what I could find. ;) CM3 was a while ago. The recent (this year) release is the CM3+ series. The CM3+ finally broke past 4GB eMMC. In fact, there is no 4GB CM3+. They start at 8GB a...
by alphanumeric
Sun Jul 07, 2019 4:26 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

To me, some this is why we have a 3B+ and a 3A+. No ethernet of tall USB header on the A series. Nice and slim for embedded projects where a Pi Zero may not cut it. And why we have a Pi Zero, nice small bit of kit with the minimum "most" may want. And there is of course the compute module. IMHO tha...
by alphanumeric
Sun Jul 07, 2019 4:15 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

ON TOPIC: I am still looking forward to the RPi 4B. Though I will definitely be giving it a bit of time before I get one. I am surprised, based on the reports on these forums it appears that the firmware and Raspbian were both released pre-Alpha quality. It almost feels like they released it premat...
by alphanumeric
Sun Jul 07, 2019 4:13 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

That is another thing. I would expect that it would be the Operating System that would scan for an ID EEPROM, though yet they forbid use of those pins. What about those people running on bare metal, or using an Operating that does not scan for the EEPROM? Does the firmware or VC OS also do somethin...
by alphanumeric
Sun Jul 07, 2019 4:04 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

From what I read on the link I posted above, the eprom isn't read over i2c. Its accessed via BCM 0 and BCM 1. Hey, guess what BCM0 and BCM1 are used for by default? I2C0 SDA and I2C0 SCL Ah, Ok, It is i2c (i2c 0), just not the i2c (i2c 1) that everything else uses by default+. Its starting to sink ...
by alphanumeric
Sun Jul 07, 2019 2:59 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

Well, I haven't got a Sense Hat to hand at the moment. I can get hold of one in a couple of days, but I suspect it is using the HAT base i2c address for identification purposes and other addresses for its own functionality. From what I read on the link I posted above, the eprom isn't read over i2c....
by alphanumeric
Sun Jul 07, 2019 2:44 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

Yes, you can have multiple i2c addresses, but the HAT system is designed to use one. Also, what happens if you stack HATs and two or more of them try to claim the same GPIO pins? One or more of them will fail. FWIW I use GPIOs, Audio, one USB port and ethernet on my Pi collection. I used to use com...
by alphanumeric
Sun Jul 07, 2019 2:00 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I thought that when the HAT concept was first introduced (late 2012 or early 2013 if memory serves me), that it was specified that you should be able to stack many HAT's on your RPi. I recall that too but the issue was debated, the pro's and con's argued out, and the opinion was that it would be be...
by alphanumeric
Sun Jul 07, 2019 1:41 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

To me, some this is why we have a 3B+ and a 3A+. No ethernet of tall USB header on the A series. Nice and slim for embedded projects where a Pi Zero may not cut it. And why we have a Pi Zero, nice small bit of kit with the minimum "most" may want. And there is of course the compute module. IMHO that...
by alphanumeric
Sun Jul 07, 2019 12:27 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

There are many many "Hats" out there that aren't really Hats. Mainly because they don't have an ID eprom. I'm fine with that because as far as I know, you can't stack two Hats if they both have an eprom. At least you couldn't in the past. I have several Pi's with stacked Hats on them. The Hats that...
by alphanumeric
Sun Jul 07, 2019 11:26 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I like the 3A+'s for headless setups MotionEye OS, rats had not thought of that application for my 3A+'s which is strange considering I have a bunch Motion Pi's running wired. Its a nice cost saving for me. I run mine over my WIFI anyway. It would be a PITA to run ethernet to them all. And some of ...
by alphanumeric
Sun Jul 07, 2019 9:03 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

There are many many "Hats" out there that aren't really Hats. Mainly because they don't have an ID eprom. I'm fine with that because as far as I know, you can't stack two Hats if they both have an eprom. At least you couldn't in the past. I have several Pi's with stacked Hats on them. The Hats that ...
by alphanumeric
Sun Jul 07, 2019 8:49 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

This should give you more GPIO to play with, https://www.raspberrypi.org/magpi/pi-zero-gpio-expander/ Not an ideal solution for everybody but its doable in a pinch. I mount my DS3231 RTC's to a Proto Hat. It gives me easy access to the GPIO pins. And quit often I add headers for other devices I wan...
by alphanumeric
Sat Jul 06, 2019 8:54 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I have to say, I personally am very happy with the current offerings. I use quit a few Zero W's, some 3A+'s and some 3B and 3B+'s. I'll likely slowly replace my model 3's with the equivalent model 4's. Heh... The largest number of Pis I have in regular use are...Pi2Bv1.1 boards. The oldest I have a...
by alphanumeric
Sat Jul 06, 2019 7:50 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I have to say, I personally am very happy with the current offerings. I use quit a few Zero W's, some 3A+'s and some 3B and 3B+'s.
I'll likely slowly replace my model 3's with the equivalent model 4's.
by alphanumeric
Sat Jul 06, 2019 7:47 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

It stops being a "Single Board Computer" though. No arguing for or against it, just saying.
Total cost, for those that want full functionality is likely going to be more. That likely wouldn't go over very well.
Kind of goes back to buy a B+ or buy an A+.
by alphanumeric
Sat Jul 06, 2019 7:25 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

This should give you more GPIO to play with, https://www.raspberrypi.org/magpi/pi-zero-gpio-expander/ Not an ideal solution for everybody but its doable in a pinch. I mount my DS3231 RTC's to a Proto Hat. It gives me easy access to the GPIO pins. And quit often I add headers for other devices I want...
by alphanumeric
Sat Jul 06, 2019 3:18 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 253
Views: 45779

Re: Raspberry Pi 4 temperature

I went with the Pibow Coupe Ninja for my Pi 4. I have those cases on my 3B+ and 3A+'s and like them. I also ordered the heatsink made to fit that case. Fan Shim was out of stock or I would have ordered one to try out. I don't have any of it in my hands yet to play with though. It should arrive some ...
by alphanumeric
Sat Jul 06, 2019 3:07 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

I like the 3A+'s for headless setups where you want the computing power of 3B+ but don't need all those ports just taking up space. I'm using mine with Motion Eye as surveillance cameras. The Video stream is not too bad on a 3A+. I tried using a Zero W but it just wasn't up to the task. One nice thi...
by alphanumeric
Sat Jul 06, 2019 11:19 am
Forum: General discussion
Topic: Adding second camera to Rpi 3?
Replies: 14
Views: 410

Re: Adding second camera to Rpi 3?

I have my Pi foundation 7 inch screen mounted to an aluminum frame. Being able to bolt the Pi to the back of the display with a nice short cable works out nicely for me. Different strokes for different folks. My setup is portable enough to move it from one room to another with my Pi and monitor in o...
by alphanumeric
Fri Jul 05, 2019 9:15 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3329

Re: The Great Raspberry Pi Computers.

Sorry guys, I was going by memory which isn't what it used to be these days. :oops: Was quit a while back too.

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