Is it possible to install the new Bookshelf application on Stretch? I'd like to access this program on a RPi that I don't want to upgrade to a new distribution.

If you wanted to make a mock-up curvette holder, actually quite a robust one. Then use some Lego to create a square section for the holder and the technics logo bit with the holes in fit led/photodetectors nicely. Another expansion, if the students don't already do it, would be use tricolour LEDs a...

there are other solutions available like scratchClient, which provide access to a variety of devices including ADC and port expanders. It runs as a separate python program together with current scratch. I have written this for a scratch physical computing course for 7th grade kids at a school here ...

If I can access an MCP3008 and SPI devices like mcp23S17 (I presume I can do the same things with I2C, I just haven't tried), then that covers nearly everything I would use in a teaching setting. (The other being something like an L293D, which I presume can be handled already) My biggest issue right...

I recently incorporated instrument design into my upper level college Chemistry course. I have the students build a colorimeter that can be used to determine the concentration of red food coloring in beverages. Previously, the students used a multimeter as the display, but this year I wanted to give...

I am looking for suggestions on how to further debug the following problem. I have an Edimax (RTL8188CUS) adapator and a WiPi (RT5370) adaptor on a RPi2. The WiPi has no problems connecting to my school's WAP (either the unsecured guest or the WPA secured staff). The Edimax rarely (but not never) co...

Is there a reason why you don't want to use the Mathematica function, PrimeQ?

There were some license issues recognized with earlier (pre Feb 03 2015) versions of Mathematica on the RPi 2. Check $Version to see if you have the latest (should have the Feb 3, 2015 date) and upgrade if necessary. If your still running in to problems, then the latest version isn't the issue.

I also encountered a problem with RPi 2 and an Edimax wifi adapter; however upon first booting the 15-01-31 raspian image I received a kernel panic error if the edimax was attached. I booted a fresh image with nothing but a USB keyboard attached. and then connected the wifi adapter through a powered...

The segmentation fault isn't the problem at the moment - I'm assuming that since I can operate Jasper via the command line (--local) that the problem is configuring the audio with a USB headset attached.

I'm trying to get Jasper set up and burned the jasper image to an SD card (rather than doing the manual installation). At the moment, I can't seem to get Jasper to speak. First, when I ran main.py manually, I received a segmentation fault due to languagemodel.lm not being found in /usr/local/share/p...

For what it's worth, I performed some benchmarking of Mathematica on the RPi and posted the results here. I observed considerable improvements with overclocking; however, there were negligible gains on my benchmarking functions with changing the memory split.