Moving ahead.
by
on 8th November 2008 at 10:01 PM (879 Views)
The students are making good progress learning C on the Junebug. Today I am changing the connectors on old PC speakers so they can be used with outside two pins on the connector at the USB end of the Junebug. I am going to use a resistor to limit the current to about 20 ma as measured with meter. That will allow the speakers to be used with one output pin or as a bridged setup. Last year we had 3 students working with speakers and the sound was horrid. I may add a few ohms for my sanity.
I have ordered small keypads that I hope to interface with PICs. They require 9 pins which is too much for the Junebug so we will be looking at using 18F2321's or better on BB's. I have made a prototype of a small target board that includes the ICSP connector. The board has pins to fit a BB. The idea is that this little boards will save some time getting various projects setup.
A while back I ordered 20 of the 24x1 line wintech LCD displays sold as LCD-111 by alltronics. They have a fine pitch connector and do not work directly with a BB. I need to solder an adaptor board to convert them to .1 inch for BB use. I also have 595's to build add on adaptors that will convert them to serial use.
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