Summary
Forgetfulness plagues not only seniors, but people of all age groups. In my first electronics project, I decided to address this problem by designing and building an Arduino locator device, with a watch-like transmitter, and mini receiver tags to attach to commonly misplaced items.
Goal: To provide seniors and other a stress-free way of locating the objects they commonly misplace.
Design Criteria:
- Broadcaster: Must be wearable, lightweight, and well-designed for both functionality and aesthetic.
- Receiver tags: Must emit easily detectable visual and audio signals – bright flashing lights and a loud noise.
- Size: The transmitter must be a convenient watch-like size so as to not hinder users. Receiver tags should be small enough to easily attach to even small objects such as keys.
- Range: Must be large enough so that objects tucked away under/behind other objects, will receive a signal. The target range is around 40 feet.
- Batteries: Must have a fairly long life and be rechargeable.
Prototypes
Prototype 1 (Breadboard)
| Transmitter | Receiver |
 |
 |
Prototype 2
| Transmitter | Receiver |
|
|
|
|
|
|
Tech Used
- Arduino Open Source Platform: 2 Duemilanove and 3 Pro-Mini’s
- Piezo buzzers and LEDs
- 3 sets of 433 mHz transmitter and receivers
- 3D printer
- Autodesk Inventor 2012
Features to Work On
- Design smaller sizes of transmitters and receiver tags using a smaller battery
- Design an easier way to attach/detach battery
- Explore GPS tracking of misplaced items
Leela Amladi 