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PWM RGB LED’s via USB

PWM RGB LED’s via USB. Derek Hall ECE402. Outline. Goals Challenges Budget Demo Looking Forward. Inspiration. LED lighting is growing in popularity and practicality Commercial, residential applications Color Kinetics, etc. Goals.

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PWM RGB LED’s via USB

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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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