On Tue, Nov 16, 2010 at 11:19 AM, C. Scott Ananian <csc...@laptop.org> wrote: > On Mon, Nov 15, 2010 at 4:19 PM, <fors...@ozonline.com.au> wrote: >>> Just make sure you keep in mind the difference between the specification >>> and what is likely to be acceptable. One value is better suited to >>> personal tinkering, the other to widespread propagation. >> >> Good point. As background to my questions Turtle Art 103 now supports sensor >> input. >> http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors >> >> As the specification stands, no teacher is going to conduct science >> experiments with external voltages. If the specification is changed to +-9v >> then they will have the confidence to conduct experiments with caution. > > Why not use 1.5V alkaline cells? Or measure voltage from a lemon > battery? I can think of any number of safe experiments.
Why not indeed. See http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#Lemon_battery -walter > --scott > > -- > ( http://cscott.net/ ) > _______________________________________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/listinfo/devel > -- Walter Bender Sugar Labs http://www.sugarlabs.org _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
