Step 1 - What you need
Remember: Just stay motivated and you will be easily able to build your own glasses! If the links to a product should have changed, just search for it by their name.
Material list
| # | Product Name | Quantity | Comment | Link | Price |
|---|---|---|---|---|---|
| 1 | QTR-1RC Reflectance Sensor (2-Pack) | 3 | The sensors to measure the position of the eye. You need only 4, but in case of breaking one, 6 is the safer quantity. | Amazon | $21 |
| 2 | Parallax Emic 2 Text-to-Speech Module | 1 | External text-to-speech module | Adafruit | $59,95 |
| 3 | 3.5mm angle/straight jack cable (AUX, 1.5 m) | 1 | AUX cable, which is needed when using an external speaker | AliExpress | $3,45 |
| 4 | Insulated braided copper wire (3m) | 1 | Connections to board and glasses | AliExpress | $1,80 |
| 5 | Arduino-compatible nano board (ATmega328, mini-USB) | 1 | More compact Arduino compatible with the Uno | AliExpress | $2,66 |
| 6 | USB 2.0 cable (EASY male A > male mini-B, 0,5m) | 1 | To connect Arduino Nano to Pc | AliExpress | $1,48 |
| 7 | USB 3.0 cable (male A > female A, 1,8m) | 1 | Converts to the connection cable of the glasses | AliExpress | $1,46 |
| 8 | Metal film resistor (20 Ohm, axial, 2W, 5%) | 3 | Resistor for keep-alive circuit of power supply. Select "2W 20R" | AliExpress | $1,20 |
| 9 | Metal film resistor (220 Ohm) | 1 (100pcs) | Resistors for LED & keep-alive circuit of power supply | AliExpress | $0,57 |
| 10 | NPN TO-92 transistor (40V, 0.6A, 0.625W) | 1 (20 pcs) | Transistor for keep-alive circuit of power supply | AliExpress | $0,65 |
| 11 | 8 Ohms 2 watt speaker, 36mm | 1 | Internal speaker | AliExpress | $2.98 |
| 12 | Usb 3.0 Type A Connector "G46" | 1 (5 pcs) | AliExpress | $1.11 | |
| 13 | 3,5mm Audio Jack Socket | 1 (10 pcs) | AliExpress | $1.97 | |
| 14 | Status LED | 1 (100 pcs) | AliExpress | $1.25 | |
| $100,90 |
Tools and consumption items
- Pliers
- Rubber band
- Wire stripper
- Voltmeter
- Insulating tape
- Nail file
- Sandpaper
- Soldering iron
- Solder wire
- Knife
- Double-faced adhesive tape
- A helping hand or something to fix it
- Ruler
Video: Circuit board order
Mentioned Links:
Video: 3D printed materials
Mentioned Links:
Notes
- If you are already very experienced in Arduino projects, it is also possible to download the wiring diagram and use a normal circuit board
- The case is not mandatory, but we highly recommend it