Hi,
Thought I post this here too. I made very simple "drawing" robot using l293 chio and cheap gear motors. The whole robot costs only about 35-40? including arduino.
The robot was made for Arduino-intro course, which was quite short. So it's simple to do. BUt I think it can be improved upon quite much.
If interested check my site here
Interesting robot, something I have long thought about playing with, but have never gotten around to it. A suggestion:
I would re-draw your schematic and the breadboard representation to avoid the "rats-nets" layouts you currently have (especially the schematic; the breadboard layout, I realize, may not be as straightforward, but it can be done better). This will just make it easier for your visitors to understand what is going on.
If you made it so that your robot could raise and lower the pen (maybe with a solenoid - you would probably also need to add encoders to the wheels to track distance), you could re-create a classic LOGO turtle device; write a simple interpreter for the Ardunio for LOGO, and LOGO commands/programs could be sent over the serial link for the turtle to execute - see these wikipedia articles for a start:
Finally - I think the "work" that the robots produced was actually quite beautiful, in a "Jackson Pollock" sort-of way...
Great job!
this was great, thanks for posting. I just made a bot with servos for wheel motors and simple objects avoidance. Ill pick up an h bridge and two dc motors and try this out.
Thanks for the replies! Happy that it was useful for some!
I would re-draw your schematic and the breadboard representation to avoid the "rats-nets" layouts you currently have (especially the schematic; the breadboard layout, I realize, may not be as straightforward, but it can be done better). This will just make it easier for your visitors to understand what is going on.
Yes, I definitely agree on that. I just quicly sketched them out in fritzing... : I'll make better ones very soon.
If you made it so that your robot could raise and lower the pen (maybe with a solenoid - you would probably also need to add encoders to the wheels to track distance), you could re-create a classic LOGO turtle device; write a simple interpreter for the Ardunio for LOGO, and LOGO commands/programs could be sent over the serial link for the turtle to execute - see these wikipedia articles for a start:
This is very nice idea! Even the solenoid thing would be great by itself. But utsing LOGO would be really great! One of my first steps to programming besides vic-20 and BASIC, very nostalgic idea
Just to let you know, I made bit clearer scheme and breadboard layout.