OK - I know I shouldn't have, but I just had to. The new Raspberry Pi is out - the Model B+. So I ordered one a few days back and it arrived today. It won't go astray as I plan to have two units on my own layout - one will drive wireless control of the layout and the other will be for programming locos at the workbench.
The Model B+ is the higher-spec variant of the Raspberry Pi. It replaced the original Model B in July 2014. Compared to the Model B it has:
- More GPIO. The GPIO header has grown to 40 pins, while retaining the same pinout for the first 26 pins as the Model B.
- More USB. There are now 4 USB 2.0 ports, compared to 2 on the Model B, and better hotplug and overcurrent behaviour.
- Micro SD. The old friction-fit SD card socket has been replaced with a much nicer push-push micro SD version.
- Lower power consumption. By replacing linear regulators with switching ones we’ve reduced power consumption by between 0.5W and 1W.
- Better audio. The audio circuit incorporates a dedicated low-noise power supply.
- Neater form factor. They’ve aligned the USB connectors with the board edge, moved composite video onto the 3.5mm jack, and added four squarely-placed mounting holes.
Anyway so it arrived and as soon as I had pushed some food into my face after work, I pulled the package out and plugged in all of the cables on my table and inserted a MicroSD card I already had imaged with my Raspian "June 2014" and JMRI "3.8".
As expected it all just worked fine. So the next trick and test I wanted to see was to not use the powered USB hub. So I pulled the hub out and inserted the Wireless Adapter into the R-Pi itself.
Power was switched on and it all fired up and again I was able to drive a train. Happy happy, joy joy.
So this now leads me to the next test I must do once I can get some time at the club - that is to hook the setup into the N Scale Exhibition layout and test how far away I can get and it still work. Also to see how many can drive at the same time too.
Maybe it will all be a ripper and the new Pi has enough power to drive the adapter and hence cost and size of the setup will be lower for connecting to the layout. Now I can't wait till next club day for me!