Bring in smartphones or tablets, a simple prebuilt webserver on an ESP32 that they can browse to for controlling LEDs, motors, a radio, anything, that will let them see how electronics is relevant to them and how the connected world works ? On Thu, 5 Apr 2018 10:27 am Andries Tip, wrote: > Hi Neil, > > Mmm. Not sure what topic you want to teach. And an hour is very little > time for explaining and building. And a difficult age too, you need > something to grab their (boys and girls) attention. A flickering light > might not do the trick. Maybe something with a lot of noise? At the end o= f > the hour, a classroom full of noise will certainly be entertaining. When > connected to whatever box/soda can a tiny speaker can produce a lot of > noise. > > Could you get them to build (or finish, if soldering is involved) a small > tunable sound generator kit (two transistors/one 555 plus transistor)? Or > perhaps a DIY electronic guitar (box + elastic bands + piezo pickup + JFE= T > amplifier + external speaker)? Great when you get the unwanted feedback! > > No so much electronics, but just electrics: I was once awoken by a boy > driving around his bicycle in our neighborhood. It's a local, yearly even= t > that children wake the neighborhood up very early by making noise. This b= oy > had a large loudspeaker box wired to the bicycle generator which is > normally used for powering the front and rear lights. The loudspeaker mad= e > a "Whowhoooo" sound because of the alternating current of the generator. > When he drove faster, the pitch would go up. When he drove slower, the > pitch would go down. Every now and then the tire would lose its grip on t= he > generator wheel resulting in amazing sound effects. Made me come out of b= ed > to see what could possibly make such sounds. ;-) > > Cheers, > Andries > > -----Oorspronkelijk bericht----- > Van: piclist-bounces@mit.edu Namens Neil > Verzonden: donderdag 5 april 2018 02:56 > Aan: Microcontroller discussion list - Public. > Onderwerp: [OT] Need ideas for teaching basic electronics > > Can use some thinking help here. I have an hour to teach kids (14-18 yr > old) something about electronics. And perhaps have something they can > take with them. > It should be hands-on and workshoppy rather than lecture. > Any programming that's teachable in that short time would probably be > costly. > And I don't want it to be a soldering class, so if any soldering is > required, I'd do that in advance. > Also, this is in less than 3 weeks so I have to act fast. > > So... any thoughts on what I can do here? > > Cheers, > -Neil. > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .