Search found 2 matches

by James Cart
Fri May 03, 2002 5:36 pm
Forum: General Discussion
Topic: Electronic locomotive whistle
Replies: 14
Views: 8809

Re: Electronic locomotive whistle

I made a several different police sirens with switch inputs using an Atmel 2343, 8 pin microcontroller. I used BASCOM basic language to create the sounds, it took about an hour. Bascom is free, the tones were very good. Total cost was about $3.00 for the chip. If your into microcontrollers this is a...
by James Cart
Tue Dec 18, 2001 5:59 pm
Forum: Robotics
Topic: p.p.m to p.w.m conversion
Replies: 6
Views: 5472

Re: p.p.m to p.w.m conversion

Hi Toejam, I don't have any URL's handy, but do a search for RC car speed controllers. There are plenty of examples for the PIC micro, schematics, source code and all. I have also seen simple analog controllers schematics that can do the same thing. I fooled around one afternoon with an analog speed...