Difference between revisions of "SumoBot TP"
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== Sensors == | == Sensors == | ||
Planned: | Planned: | ||
| − | * 2 Sharp | + | * 2 Sharp 10-80cm IR range finders |
* 4 Sharp 4cm IR proximity sensors | * 4 Sharp 4cm IR proximity sensors | ||
* 3 IR reflectance sensors | * 3 IR reflectance sensors | ||
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(8 digital, 2 analog) | (8 digital, 2 analog) | ||
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== Drivetrain == | == Drivetrain == | ||
Revision as of 14:43, 23 January 2011
This is the wiki page for a project TP is working on.
Contents
Overview
LVL1 in Louisville challenged Hive13 to join them in a Mini SumoBot competition (link needed), and from what I hear, the folks on the House Bot team put in quite a showing! This has inspired me to try to build a bot to 'play' with the House Bot. By play, I of course mean "provide as much competition as I can."
Background
I really do intended to put some Mini Sumo background info here (really). I think the House Bot page has links to some background stuff.
For now, I'll just note that
- bot must be no larger than 10cm square
- bot must weigh no more than 500 grams
- bot must look cool
- bot must win (often)
(I added the last two for my own purposes - sue me)
Sensors
Planned:
- 2 Sharp 10-80cm IR range finders
- 4 Sharp 4cm IR proximity sensors
- 3 IR reflectance sensors
- 1 momentary push button (Start)
(8 digital, 2 analog)
Drivetrain
Details to come. Basically, two DC motors in a gear box driven with H-bridges. Each motor will require 3 outputs (A,B,pulse).
Control
For my controller, as usual, I will be using a PIC16F688. "But wait, TP! That thing only has 12 I/O pins!" (10 sensor inputs + 6 motor outputs + ? feedback LEDs >> 12) Huh. Well, that's what they make shift registers for. I just love these little PICs too much. Irony Not Missed: adding the shift registers will take up more space that using a larger PIC with sufficient I/O pins.
I will be using a straight forward, pre-determined decision routine - no fancy AI crap here! (At least for now... this chassis may replace the current platform for SGRC4)
Current Status - Active
- Prototyping of control system underway
Work Log
Nov 8, 2010
I have actually been rolling this around in my head since the announcement of the LVL1 competition in Louisville. Finally got started with breadboarding the control system over the weekend. I have a box full of parts picked out on www.pololu.com that I plan to order some time late next week. Hopeful I can get this bot into the ring before the year is out.
Current Issues
- Did I forgot how to use the ADC in these PICs? It sure feels like it...
Next Steps
- Complete control system prototype
- Order parts
- Begin assembly
- Solder perf-board version of control system
- Ring test down at the Hive
- Tweak decision rountines
- Consider, then completely abandon, possibility of soldering a REAL circuit board
- Build chassis cover
- Kick butt in sumo ring
