Track-o-matic 🚌 📺⌚
Created on 05 Nov 2017
It's a bus tracker but retro
An indoor display that shows arrival times for upcoming buses. It uses a split-flap display for low power usage and a retro feel.
| Part | Cost | Quantity | Total |
| Amazon.com : Elegoo 5 sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 | $13.99 | 1 | $13.99 |
| Stepper Motors (for changing display) | |||
| Amazon.com: Raspberry Pi 3 Model B Motherboard: Computers & Accessorie | $34.50 | 1 | $34.50 |
| Raspberry Pi (wifi, controlling steppers) | |||
| Amazon.com : Clear Acrylic Plexiglass Sheet - 1/8" Thick Cast - 12" x | $14.80 | 3 | $44.40 |
| Clear display case | |||
| Steel Pan Head Machine Screw, Black Oxide Finish, Meets DIN 7985, #2 P | $4.69 | 1 | $4.69 |
| M4 screws for mounting motors and mechanism | |||
| SIM&NAT 12inch / 30cm 40 Pin Male to Female Dupont Wire, 40 Pin Male t | $7.49 | 1 | $7.49 |
| Jumper wires for connecting motor controllers to Pi/power source | |||
| Cosco 20" x 48" Resin Top Folding Table Black | $33.99 | 1 | $33.99 |
| Table for visibility and support | |||
| MakerBot PLA Filament, 1.75 mm Diameter, Small Spool, Black | $18.00 | 1 | $18.00 |
| Black 3D print filament for rotors/stators | |||
| Grafix Medium Weight Chipboard Sheets, 12-Inch by 12-Inch, Natural, 25 | $9.61 | 2 | $19.22 |
| Material for the flaps to be laser-cut | |||
| Spray Paint for Arts & Crafts, Water Based PintyPlus Aqua - Assorted C | $9.99 | 1 | $9.99 |
| Yellow spray paint for flaps text | |||
| Spray Paint for Arts & Crafts, Water Based PintyPlus Aqua - Assorted C | $9.99 | 1 | $9.99 |
| Black spray paint for flaps background | |||
| uxcell M4 Carbon Steel Grade 8 Hexagon Hex Nut Black 100pcs | $7.78 | 1 | $7.78 |
| Nuts for M4 screws | |||
| Project Totals: | 14 | $204.04 | |
| Track 2 Base Budget: | $250.00 | ||
| Preferred Vendor Budget Bonus: | $50.00 | ||
| Remaining Budget: | $95.96 | ||
Tiffany Chiang
16 Jan 2018, 7:58 p.m. EST
6pm: Finished prototype of one split flap module, tested with stepper motor running.
Tiffany Chiang
16 Jan 2018, 8 p.m. EST
8pm: Making adjustments to shaft, re-printing stator and rotor pieces. Designing stencils for bus routes and time.
Tiffany Chiang
16 Jan 2018, 8:59 p.m. EST
9pm: Finished cutting stencils and flaps, spray painting some test flaps.
Tiffany Chiang
16 Jan 2018, 11:09 p.m. EST
10pm: Finished printing another module, spray painted one side of all chipboard flaps black (two coats).
Amukta Nayak
18 Jan 2018, 4:31 p.m. EST
5pm: Created prototype of device enclosure, began printing and assembling additional split flap modules, finished up painting/spray painting flaps