While my kids went out with their mother for Hallowe'en, I stayed home to work on the chair while handing out candy. When I initially planned this project, I broke it down into 5 milestones in the 3 sections of the chair build. Those milestones were:
| # | Turn/Brake/Reverse Indicators | Proximity Sensors | Quote of the Day |
| 1 | 2 LEDs, one for left, one for Right. No reverse or brake lights | None | None |
| 2 | Multiple LEDs to form an arrow shape. Brake and reverse indicators included | None | Brake light blinks message in Morse Code |
| 3 | Speaker included for reverse audio alerts | Rear Installation only | Messages appear on LED; Messages hard coded into Arduino sketch |
| 4 | Same as 3 | Front and rear. Same audible alert for each side. Text alert in rear for tailgaters | Messages on LED controlled by a web interface accessible when Arduino attached to the Internet |
| 5 | Turn signals turn off based on the differential speed of the wheels | Audible alerts for front and rear will be different. Vibration alert in the seat as well | Twitter interface - displays the latest tweets with a certain #hashtag |
Entries for Milestone 5 are my stretch goals, chances are I won't get there in the time I have, but it means I always have something to do.
I have accomplished Milestone 1.5 for the Indicator lights. Both my left and right turn signals work in addition to the reverse light. I am currently having difficulty with the brake light (it is always on) and the system is not calculating the speed properly yet. The sensors are working properly so I know its just a matter of fixing the code. I think the problem is that I'm running out of SRAM memory on the Arduino, it only has 1024 bytes.
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