KorczynskiMcCall

Back to Psych 221 Projects 2013

Active LED Illumination: Wireless Communication

Background

• Talk about Camera
• Talk about LED Experiments

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Figure 3

Design Goals

• Enable multiple programmable light sources for experiments
• Synchronous wireless trigger that can handle 500fps speeds

Figure 4

System Overview

Transmitter

Receiver

How it works

Combine efforts of both transmitter and receiver

Components and Cost (Bill of Materials)

Transmitter

1. Arduino Pro Mini - $9.95 [product]
2. Parallax Transceiver - $39.95 [product] [datasheet]
3. 74AC157 Multiplexer - $0.15 [product] [datasheet]
4. 3 56Ω resistors
5. 2 3-pin headers (0.1" spacing)
6. 3 Green LEDS - [datasheet]
7. Perfboard - $5.95 [product]

Total Transmitter Cost: $56

Receiver

1. Arduino Uno (or cheaper alternative)- $29.95 [product]
2. Parallax Transceiver - $39.95 [product] [datasheet]
3. 74HC138 Demultiplexer - $0.35 [product] [datasheet]
4. 4 150Ω resistors
5. 1 3-pin header (0.1" spacing)
6. 4 Green LEDS - [datasheet]
7. ArduinoShield - $4.95 [product]

Total Reciever Cost: $75 (or $56 with cheaper Arduino)

Conclusions

Here is where you say what your results mean.

References - Resources and related work

• Jameco Electronics Catalog ([1])
• The Importance of Flash Sync Speed [2].

Appendix I - Code and Data

Code

Transmitter: Transmitter code for Arduino

Receiver: Receiver code for Arduino

Camera_Emulator: Camera Emulator

Data

zip file with my data

Appendix II - Work partition

Design Planning/Schematics: Allison and Corey

Wireless Transmitter Xbee Testing: Allison and Corey

Final Component Selection: Corey

Firmware and Testing software: Corey

Soldering/Assembly: Allison

Presentation and Wiki: Allison