OSHUG Sept 2011 Controlling Power With Microcontrollers @paul_tanner [email_address]
Objectives <ul><li>Control power from MBED  (and Arduino in due course)
Multi-channel (up to 64)
Manage power consumed (avoid polling etc)
Safe even without packaging
Open – to the extent possible </li></ul>
IOT System Model
The Components MBED on Dev Board with RT4 4.33 MHz No relays! Online Compiler
.. and the rest BBSB Wireless- Controlled Socket server to hold/ transmit settings  App
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Oshug 110929

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Talk on controlling power from microcontrollers

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Oshug 110929

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