model_car_wash_demonstration.mp4
A model car wash project with the primary objective of efficiently and effectively controlling six DC motors simultaneously.
| Quantity | Component | Name | Notes |
|---|---|---|---|
| 10 |  |
2 Hole Screw Terminals | Used to attach any wired components to the printed circuit board (PCB). |
| 1 |  |
LED | Signals whether the circuit board is powered on or not. |
| 1 |  |
330 Ohm Resistor | Limits the electrical current flowing through the LED to prevent damage. |
| 3 |  |
TB6612FNG Motor Driver | Controls the speed and direction of the motors attached to the circuit board. |
| 6 |  |
DC Motor | The primary component in the project that will be controlled by the motor drivers and microcontroller. |
| 1 |  |
Teensy 4.1 | Gives the motor controllers instruction on how to operate within the circuit board. |
| 1 |  |
4 AA Battery Latch | Will hold the 1.5 volt batteries used to power the circuit board. |
| 1 |  |
2 Pin Rocker Switch | Bridges the power between the batteries and the circuit board, which powers the board on and off manually. |
| 1 |  |
5V Step-Down Buck Converter | Reduces higher input voltage to a stable 5 volts output to the microcontroller. |
| 4 |  |
1.5V AA Battery | Used to power the circuit board. |
| Quantity | Component | Name | Notes |
|---|---|---|---|
| 6 |  |
Female 6 Pin Header | Used to make the TB6612FNG motor drivers removable. |
| 2 |  |
Female 24 Pin Header | Used to make the Teensy 4.1 microcontroller removable. |
| Pin Name | Digital Pin | Analog Pin | PWM* Enabled |
|---|---|---|---|
| AIN1_1 | 14 | A0 | Yes |
| AIN2_1 | 15 | A1 | Yes |
| BIN1_1 | 16 | A2 | No |
| BIN2_1 | 17 | A3 | No |
| PWMA_1 | 18 | A4 | Yes |
| PWMB_1 | 19 | A5 | Yes |
| AIN1_2 | 20 | A6 | No |
| AIN2_2 | 21 | A7 | No |
| BIN1_2 | 40 | A16 | No |
| BIN2_2 | 41 | A17 | No |
| PWMA_2 | 24 | A10 | Yes |
| PWMB_2 | 25 | A11 | Yes |
| AIN1_3 | 26 | A12 | No |
| AIN2_3 | 27 | A13 | No |
| BIN1_3 | 38 | A14 | No |
| BIN2_3 | 39 | A15 | No |
| PWMA_3 | 22 | A8 | Yes |
| PWMB_3 | 23 | A9 | Yes |
- Pulse-Width Modulation: controls motor speed.
| Without Components | With Components |
|---|---|
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pcb_demonstration.mp4
DO NOT connect to power or power on the Teensy and connect to the USB port concurrently. Doing so can damage the microcontroller.
Follow this guide if you want to use power and the USB port concurrently.