EP#126: Space Engineering

EP#126: Space Engineering

  • 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?"

Tags: 1441-16CWW, electronics podcast, Grand Wagoneer, ITS OVER 9000 LEDS?!, Jeep, MacroFab, macrofab engineering podcast, MAX6682, MEP, Podcast, Spider Silk microphone, uTracer, Voltage Regualtor Heatsinks, waft-able

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EP#32: Erroneous Enclosures of Enormous Energy

EP#32: Erroneous Enclosures of Enormous Energy

Podcast NotesStephen brewed a batch of beer over the last weekend with his new electric brewing setup. It is not complete yet but it does work. Stephen converted his brew kettle to include a 4500W hea...

9 Syys 201627min

EP#31: Embedded Brewing with Arduinos

EP#31: Embedded Brewing with Arduinos

Podcast NotesParker designed the Macro Duino! Basically a Arduino clone using Type C USB, a FT230X as the USB UART bridge, and proper power switching with the Ti TPS2113A. See Figure 1. Also supports ...

2 Syys 201633min

EP#30: You won’t believe this ONE WEIRD Engineering trick

EP#30: You won’t believe this ONE WEIRD Engineering trick

Podcast NotesParker is working on streamlining the Selective Solder Process at MacroFab. Writing a script that will take XYRS data and generate the G-Code for the machine.Design work on a calibration ...

26 Elo 201634min

EP#29: Modular Toilet Humor

EP#29: Modular Toilet Humor

Podcast NotesStephen is currently working on DipTrace part libraries and templates for DRC and CAM file generation. Should have an article out next week about it. GitHub repository for DipTrace files ...

19 Elo 201627min

EP#28: Dissolving Energon Cubes

EP#28: Dissolving Energon Cubes

Podcast NotesStephen has been running tests on the Energon Cube for the SSPS. So far everything is working great. Check out Stephen's blog post update:  Super Simple Power Supply "SSPS" Design (Part 3...

12 Elo 201631min

EP#27: If There is a Bug, You Can Fix It

EP#27: If There is a Bug, You Can Fix It

Podcast NotesOur Guest this week is Kwabena Agyeman who runs OpenMV. See Figure 1.The OpenMV project is about creating low-cost, extensible, Python powered, machine vision modules and aims at becoming...

5 Elo 201636min

EP#26: Super Simple Buss Bars of Power

EP#26: Super Simple Buss Bars of Power

Podcast NotesStephen has been working on making the copper buss bars for the SSPS Energon cube. See Figure 1.We calculated that the resistance of the copper buss bars is 0.00458 ohms or 4.58 mohm. Our...

29 Heinä 201631min

EP#25: Lousy Datasheet Buyouts

EP#25: Lousy Datasheet Buyouts

Podcast NotesStephen has completed the SSPS Analog board. See Figure 1. Testing will begin early next week.The Macro Amp that Stephen has been working on is almost done. He just needs to solder the th...

22 Heinä 201631min

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