Successfully reported this slideshow.
Your SlideShare is downloading. ×

OpenLoggage - open source data logging platform

Advertisement

More Related Content

Advertisement

Related Books

Free with a 30 day trial from Scribd

See all

Related Audiobooks

Free with a 30 day trial from Scribd

See all

OpenLoggage - open source data logging platform

  1. 1. Why OpenLoggage 0 Motivation: 0 What happens to my luggage after check-in counter at the airport? 0 Hot? Cold? Dropped? Opened? 0 Open = 0 open source hardware and software 0 “crystal-clear” 0 Loggage = 0 log + luggage
  2. 2. Disclaimer 0 Rules & regulations 0 Does FAA allows luggage monitors?
  3. 3. Features 0 In scope 0 Temperature 0 Light (see if luggage was opened) 0 Shock/drop (accelerometer) 0 Log  microSDcard 0 Out of scope 0 GPS due to antenna 0 On the fence 0 Built-in li-ion charger 0 Serial or USB interface
  4. 4. Requirements 0 Battery operated: Low power 0 Physically Robust: single pcb board 0 Breadboard not acceptable
  5. 5. Step 1: block diagram
  6. 6. Power Management Tip 1 0 Drop from 5v to 3.3v 0 Drop from 16Mhz to 8Mhz 0 Set uC into Sleep mode 44.1 32 0.495 0 5 10 15 20 25 30 35 40 45 50 Arduino Arduino Sleep OLGA w/ sleep Arduino Current Draw Improvement Current
  7. 7. More info 0 Blog posts in sept/oct 2013 0Calculating Arduino Uno power draw http://gadgetmakersblog.com/arduino-power- consumption/ 0Calculating Atmel328 power draw 0http://gadgetmakersblog.com/power-consumption- arduinos-atmega328-microcontroller/
  8. 8. Power Management Tip 2 0 Switch Power to peripherals 0 User microcontroller pin if <30-40mA 0 User FET to if >30-40mA
  9. 9. Power Management <30mA 0 uC pin to control power 0 Add jumper for multimeter 51uA
  10. 10. Power Management >30mA 0 Add Fet to switch power 0 Remeber to make ALL lines inputs!!! Idle current= 20mA Active current = 50-60mA
  11. 11. Low Price! $2 vs $6.50 0 Fake USB to Serial IC (blog post) 0 http://gadgetmakersblog.com/2/
  12. 12. Prototype #1
  13. 13. Next Steps 0 Make smaller 0 uC from DIP to QFP 0 Fix bugs 0 Remove test points
  14. 14. Thank you! 0 Twitter: @RamosIgorS 0 Site: OpenLoggage.com 0 Site: GadgetMakersBlog.com

×