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Oshug 110929

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Talk on controlling power from microcontrollers

Talk on controlling power from microcontrollers


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  • 1. OSHUG Sept 2011 Controlling Power With Microcontrollers @paul_tanner [email_address]
  • 2. Objectives
    • Control power from MBED (and Arduino in due course)
    • 3. Multi-channel (up to 64)
    • 4. Manage power consumed (avoid polling etc)
    • 5. Safe even without packaging
    • 6. Open – to the extent possible
  • 7. IOT System Model
  • 8. The Components MBED on Dev Board with RT4 4.33 MHz No relays! Online Compiler
  • 9. .. and the rest BBSB Wireless- Controlled Socket server to hold/ transmit settings App
  • 10. Demo
    • Cookbook http://mbed.org/cookbook/Homepage
    • 11. Module Schematics http://mbed.org/cookbook/Reference-Design
    • 12. Compiler + libraries + code https://mbed.org/compiler/
    • 13. Pachube feed/ app http://www.virtual-techno.com/ae/pages/ae_one_switch.php
  • 14. Why MBED
    • Why not?
    • 15. KTN subsidised session
    • 16. Faster (ARM) processor
    • 17. Plenty of RAM and flash
    • 18. Great range of libraries incl. TCP sockets
    • 19. Do we like the IDE? Well, yes.
  • 20. Issues
    • MBED TCP socket lib - polling, really?
    • 21. Power management (power down radio chip)
    • 22. Nicer JSON library (not one-bite)
    • 23. MBED not all open source - “Manode” anyone?
    • 24. So..
    • 25. Arduino/ Nanode version – uIP w. TCP sockets
    • 26. Checkout XMPP and MQTT
    • 27. Publish the design and source (but how?)
  • 28. DC Lighting Version http://www.virtual-techno.com/ae/pages/ae_orb_control.php
    • Tricolor power LED LX1610RGBW/A
    • 29. Driver chip DS3658
    • 30. Resistors 68R (..10R)
    • 31. Pachube
    • 32. Custom app