After having completed my first Arduino project (which can be found here) I wanted to try and create something that had more of a practical use. My idea behind this project was a way of aiding the visually impaired.
By the end of this project you will have created some touch sensitive desk trays which use audio labels that are re-recordable.
Feel free to modify it and make it your own once you have completed these steps.
During this tutorial I have provided serveral links to Arduino's own tutorials and more about Arduino can be found here.
Hovering over the image squares gives you more information.
Total time to complete: 1.5 hours (you do not need to complete all of this in one sitting)
Please note that as always you will need a computer with USB capabilities to program your Arduino.
Step 1: Things you will need
Step 2: Touch sensitive pin with 1 LED
Step 3: Making touch sensitive with 3 LEDs
Step 4: Connecting up the trays
Step 5: Attaching the speaker
Step 6: Attaching the microphones
Step 7: Adding a recording button
Step 8: Finished product
Step 1: Things you will need:
- Arduino Uno (£22.19)
- 9 V Mains Power Supply (500 mA minimum, 2.1mm center-positive plug) (£6.72)
- USB cable type A Male to type B Male (£8.93)
- Solder (£0.89) - missing from images
- 3 * Conductive Desk Trays (£15)
- mini push button (£3.20)
- 3 * LED (£2.89 for 75)
- 3 * 150 ohm resistor (£1.04 for 100) (colour code = brown, green, brown, gold)
- 3* 1 Mohm resistor (£0.20 for 20) (colour code = brown, black , black , yellow, brown)
- Female to Male jumper pins (£1.70)
- Male to Male jumper pins (£5.99)
- 8-ohm speaker with cable (£2.48)
- Solderless breadboard (£2.79)
- 3A Terminal Block (£2.09)
- 3 * Onboard Microphone Voice Recording Playing Module for Arduino (£2.24 each)
Tools - missing from images
- Soldering Iron (£8.99)
- Wire strippers (£2.68)
- Small flathead screw driver (£2)
Materials : £53.73
Circuit Components: £17.50
Tools : £13.67