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The Cabin >> Raspberry and Other Pies >> A New Raspberry Pi - The Model A+!
http://www.hondosackett.com/yabb/YaBB.pl?num=1415982629

Message started by Fernando on Nov 14^th, 2014, 11:30am

Title: A New Raspberry Pi - The Model A+!
Post by Fernando on Nov 14^th, 2014, 11:30am

At a very low price.... Detailed here:

http://www.raspberrypi.org/raspberry-pi-model-a-plus-on-sale/
Quote: When we announced the Model B+ back in July, we said that we’d also be producing a lower-cost variant, analogous to the original Model A. Since then, James has been beavering away, and today we’re pleased to announce the release of the Raspberry Pi Model A+ at a new low price of $20.

$20? Damn. I just noticed them today on Ebay for $31 to $35! Something to investigate further.

Title: Re: A New Raspberry Pi - The Model A+!
Post by Hondo I. Sackett on Nov 22^nd, 2014, 8:13pm

Where are these better than the b+? yeah it's $15 cheaper but is that the only benifit?

Title: Re: A New Raspberry Pi - The Model A+!
Post by Fernando on Dec 6^th, 2014, 1:40am

Like the Model A compared to the Model B, the Model A+ is the same thing - a Model B+ with only only 1 USB Port, no Ethernet and this time they cut the board almost in half, making it smaller and use less electricity.

In talking with the girl at Tinkersphere, the Model A+ would be great for robotics and sensor measuring. This would replace a lot of projects the Model B+ was being used for because there was no A+ for such a long time.

Otherwise, the Model A+ is still more or less a Model A with "improved ROM", better voltage regulation circuit and smaller sized board.

Title: Re: A New Raspberry Pi - The Model A+!
Post by Hondo I. Sackett on Dec 6^th, 2014, 12:36pm

makes sense. Might work for my remote keypad project. Need a remote keypad to open gates that will talk to the main system to log who came and left.

Title: Re: A New Raspberry Pi - The Model A+!
Post by Fernando on Dec 6^th, 2014, 12:57pm

I got a few keypads (waiting on delivery from China), the A+ board is about the same size as a keypad if not smaller. The KeyPad can go on to the GPIO and the A+ USB can communicate with the rest of the system through a usb-wifi.

To give you an idea of the size of the Model A+, here it is with the Model A, which you know is the same size as the Model B.

http://www.hondosackett.com/Fernando/Models%20A%26A%2b.png

Title: Re: A New Raspberry Pi - The Model A+!
Post by Hondo I. Sackett on Dec 6^th, 2014, 9:00pm

wow, big change

Title: Re: A New Raspberry Pi - The Model A+!
Post by Fernando on Dec 9^th, 2014, 11:51pm

I checked it out, it is smaller than the 0-9 keypad I bought on ebay!

Title: Re: A New Raspberry Pi - The Model A+!
Post by Hondo I. Sackett on Dec 10^th, 2014, 10:07pm

nice!

Title: Re: A New Raspberry Pi - The Model A+!
Post by Fernando on Dec 11^th, 2014, 1:50am

The keypad I got was about $1.25 from China, its about 7.5cm (4.5im) long X 6.5cm (3.5in) wide.
http://www.hondosackett.com/Fernando/3X4%20Keypad.jpg

The A+ fits within the white border of the inside box of this keypad.

I also got a 4X4 key pad which is wider than the first one but it has not arrived yet. It was 85¢ from Hong Kong.
http://www.hondosackett.com/Fernando/4X4%20Keypad.jpg

Just have to figure out the matrix wiring before connecting it to the R-Pi. There are a couple of webpages which shows how to connect other keypads to the GPIO. The program itself is simple. The issue on all of them was the matrix wiring.
The first key pad is 7 wires for 4 rows X 3 columns The second keypad is 8 wires for 4 rows X 4 columns.