Podcast
126

MEP EP #126: Space Engineering

Podcast Notes

  • Parker
    • MAX6682 breakout board finished and ordered
      • This is for the thermistors
      • GitHub repo for the board files
    • New Jeep, The Grande Wagoneer
      • A/C doesn’t work as expected
      • Found the FSM and Schematic
      • Schematic has four parts that control the A/C Compressor
        • Evaporator thermistor
          • Turns out this is a standard 5K NTC thermistor
        • A/C temperature sensor
        • Compressor Low Pressure Switch
          • Standard part #4773763
        • Climate Control Box
  • Stephen
    • uTracer update
      • Enclosure will be a Hammond Manufacturing 1441-16CWW
      • uTracer PCB will be a daughter board attached to the relay control board
      • Built in USB -> RS-232
  • RFO
    • Spider silk microphone also senses slightest waft of air
      • “most waft-able air movement sensor ever”
      • 400V field, ~0.5V/Pa
      • Research paper is behind a pay wall :/
    • Voltage Regulator heatsinks – when are they required?
      • Maximum power dissipation is determined by the maximum junction temperature rating, the ambient temperature, and the junction-to-ambient thermal resistance.
      • PDmax=( TJmax-  TA) / RθJA
      • Junction-to-ambient thermal resistance measured in C/W
      • Maximum Power Enhancement Techniques for SOT-223 Power MOSFETs – AN-1028
      • Constructing Your Power Supply —Layout Considerations – SLUP230
    • Jarrett from slack asks “WTF do you do with 2 million free LEDs?”

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Download: MP3
RSS Feed: Link
Twitter: @MacroFab

Runtime: (01:08:35)

Hosts:
Parker Dillmann
Stephen Kriag

Guest:
N/A


MAX6682 Thermistor breakout board Parker designed.

MAX6682 Thermistor breakout board Parker designed.

 

Parker's new ride. 1990 Jeep Grand Wagoneer.

Parker’s new ride. 1990 Jeep Grand Wagoneer.

 

Stephen's mock up of the uTracer enclosure and where the internal components will stack up.

Stephen’s mock up of the uTracer enclosure and where the internal components will stack up.


Special thanks to whixr over at Tymkrs for the intro and outro!