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Solar Car Challenge Telemetry

Solar Car Challenge Telemetry. Jarrett Dunn. Agenda. Sources Communications Sensors Practical Example. What to look for in a Source. Documentation Reliability Customer support Lead time. Sources. Aliexpress High Failure rate Long shipping times Little to no documentation Cheap!!

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Solar Car Challenge Telemetry

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  1. Solar Car Challenge Telemetry Jarrett Dunn

  2. Agenda • Sources • Communications • Sensors • Practical Example

  3. What to look for in a Source • Documentation • Reliability • Customer support • Lead time

  4. Sources • Aliexpress • High Failure rate • Long shipping times • Little to no documentation • Cheap!! • Ebay • Unknow sources • Questionable quality • Cheap • Adafruit • Reliable • Excellent documentation • Fast shipping • Expensive!!! • Sparkfun • Reliable • Good tutorials • Expensive *** These are Jarrett’s opinions. The Solar Car Challenge does not endorse any of these companies or products***

  5. Essential Parts • Sensors • Processor • Transmission Method • Storage Method • Display

  6. Sensors • Voltage • ADS1115 ($15 Adafruit) • 16 bit • Programmable gain • Speed ($40 Adafruit) • MTK3339 • Temperature ($5 Adafruit) • MCP9808 • Current • Hall Effect ($30 Aliexpress) • Shunt ($22 Digi-Key)

  7. Micro Controllers Pros Real time controllers Single loop Low Speed 8-120 Mhz Limited Memory Cons • Real time controllers • Single loop • Cheap • Easy to program • Lowe Power usage

  8. Micro Controllers • Examples • Arduino • ARM and AVR processor family • Parallax • Basic Stamp • Propeller • Texas Instruments • MSP430 • Simple Link

  9. Micro Computer Pros Cons Expensive Large power requirement Multiple threads/processes Difficult to program Multiple threads/processes • Fast 1 GHz+ • Large Memory • Large Storage • Multiple Threads/Processes

  10. Processor • Raspberry Pi Zero W ($10 Multiple) • I2C Network • Serial Communications • Built in Wifi • HDMI • Substantial Storage

  11. Transmission Wifi Cell

  12. Storage Hosts Database

  13. Display Database

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