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RGB LED Control with USB Interface: Project by Derek Hall

Explore Derek Hall's project using PWM to control RGB LED's via USB, with goals to create user-controlled color sequences. Follow his journey through challenges, budgeting, demos, and future plans. Discover the practical applications and potential of LED lighting in various settings.

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RGB LED Control with USB Interface: Project by Derek Hall

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  1. PWM RGB LED’svia USB Derek Hall ECE402 Derek Hall

  2. Outline • Goals • Challenges • Budget • Demo • Looking Forward Derek Hall

  3. Inspiration • LED lighting is growing in popularity and practicality • Commercial, residential applications • Color Kinetics, etc. Derek Hall

  4. Goals • Use WUSB-PSoC development kit to control bank of RGB LED’s • Use PWM to “mix” colors • GUI Control • Individual control of red, green, and blue • User controlled color sequences Derek Hall

  5. Steps • PSoC • 3 PWM’s • 8 bits  256 colors • Device communication • PC  USB  Transmitter  Receiver • GUI Derek Hall

  6. Hardware Derek Hall

  7. Challenges • Radio module adapter failure • Poor documentation for interfacing PC-Transmitter • “Easy USB” • Preconfigured bridges for mouse, gamepad, etc. • Requires a second chip, “enCore” • OTP • enCore development kit: $730 Derek Hall

  8. Steps modified • PSoC • 3 PWM’s • 8 bits  256 colors • Device communication • PC  USB  PSoC Eval Board • USB Driver • HID • GUI Derek Hall

  9. Budget Derek Hall

  10. Demo Derek Hall

  11. Looking Forward • PSoC • Add sensing for over-temperature etc • Calibrate luminosity of diodes (mixing) • High Power LEDs • Device Communication • Wireless • USB driver all code needed for enCore? • ZigBee, WUSB, lesser • TI eZ430-RF2500? • GUI • Save & Load sequences • User defined fade times • Options are endless! Derek Hall

  12. Questions, Comments, Snide Remarks Derek Hall

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