General > General Technical Chat

Learning Simple Programming for a Ten Year Old?

<< < (12/12)

RJSV:
   A tiny bit of hardware device knowledge won't hurt.
Included here, photo shows a FLIP-FLOP bistable circle of ten inverting light sensing switches. (You have seen, elsewhere, on the FORUM.

   Two gates in a circle can form a latching element, on or off, but alas...the light beam won't bend, no matter how hard I pushed, (lol).  Tried moving really, really FAST, but the beam was 'gone' before I could swivel the little garden light.

   No effort learning, and nothing to short out.  That's how 'The Coding' should be.
   Ten or twelve, is good, as even number around.  It's easier to switch the FLIP-FLOP logic using a dark thick business card, blocking whichever 'state' is ON.
A tight beam flash torch or laser pointer works too, in opposite logic polarity.

   Hardware stores generally charge way too much, $7 and up,  each.  I used local thrift 'dollar' store, got 60 of them, at buck 25 each, on a flat (boxed mass set).

RJSV:
LOL,. others in house are on ZOOM...No bandwidth left to send my photo...it just hangs, lingering on the post, but text makes it in.

RJSV:
Photo.

Nominal Animal:
A local company here sells cheap IR photoreflectors (since I will be reading "down", close to the surface, whether surface is white/reflective or dark/absorptive) in SMD; I could get 100 of them for 10€.  I basically want enough of them to detect which directions the bot is allowed to go.

Mouser has Sharp GP2S60 series photoreflectors in stock, for less than 6€ for 10.

For a custom bot, a surface-facing camera, say a cheap OV2640 with a wide angle lens, could be used to "read" markings/instructions drawn on the surface.  I'm surprised nobody has made such a toy yet, especially since interfacing an OV2640 to an ESP32 is a commonly done thing, and you can get the modules for literally under five euros/dollars.  It would of course need to be central to the bot, to be really useful, so the bot chassis would need to have a rather large hole in the middle for the camera.

Navigation

[0] Message Index

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod