1473149-4, another Brick in the IoT, Capcom, CSP-2, Design Challenge, DS90C365A, LVDS, MacroFab, macrofab engineering podcast, Meetup, MEP, NTAG213, NXP, Podcast, Raspberry Pi, RPI3

MEP EP#62: Yo Ho Ho and a Technological Bottle of Rum

Download: MP3
RSS Feed: Link
Twitter: @MacroFab

Runtime: (40:45)

Parker Dillmann
Stephen Kraig


Podcast Notes

  • If you enjoy listening to MEP, please let others know about us! Tell a coworker, loved one, friend, or share it on “social media”.  We might reward your love for us by sending you a free koozie! Tell others how much you love us, then send us an email to podcast@macrofab.com with the codeword that we’ll mention during the show, plus your mailing address. Each show has a different codeword, so keep an ear out!
  • MacroFab and Mouser Electronics have teamed up to create a free monthly meetup in Houston (April 26th) for anyone involved with hardware & electronics engineering or manufacturing. Hosted on the last Wednesday of every month, these meetups are designed to build a community of professionals who want to learn from one another, gain new insights on emerging electronics technologies, and expand their network.
    • Sign up here!
    • What to expect
      •  Networking
      • Fireside chats with Q&A
      • Individual project sharing and discussion
      • Door prizes
      • Refreshments
  • Parker has been working on the next step of the RPI3 LVDS project.
    • Pinout the SODIMM connector for the RPI3 Compute Module. See Figure 1.
      • Part number 1473149-4 by TE Connectivity
      • LVDS DS90C365A IC is net listed up
      • Trying to use the PWM function to control the backlight of the LCD.
        • GPIO40 is PWM0 on the RPI3
      • Still to be done
        • Power 1.8V, 3.3V, 12V
        • SD card
        • HDMI
        • USB and a USB Hub
        • Break out all the pins
        • Test points for clk signals and data streams
  • Stephen has a challenge for the listeners.
    • Goal: Design for a ring of LEDs that surround a control knob on a synthesizer and light up according to the position of the knob
    • Requirements
      • The circuit must connect to a potentiometer (this can be a dual gang version) example: rv16a01f
      • The ring of LEDs must be centered on a 12mm radius around the potentiometer.
      • Whole circuit must not be larger 1.2” W x 1.2”H x 1.2”D
      • PCB can solder directly to pins on potentiometer
      • Multiple PCBs is acceptable if needed
      • Color of the LEDs does not matter although green or red is preferable
      • Number of LEDs is 16 minimum and 32 maximum
      • LEDs are arranged on a 300 degree arc (potentiometer has 300 degrees of rotation) starting at 240 degrees and ending at -60 degrees
      • The circuit will receive external 5V power so it must have through hole pads for power and gnd
      • CHEAP CHEAP CHEAP! Do this for as cheap as possible
  • Rapid Fire Opinion (RFOs)
    • Revealing Capcom’s Custom Silicon Security – Hackaday
      • Capcom developed their arcade boards to die with their secrets through a “suicide” system. System name CPS2
      • Basically all the game code was encrypted and the key was stored in volatile ram kept alive by a battery.
      • Reminds Parker of the reflow oven that MacroFab currently use.
    • NXP chip checks your booze – Electronics Weekly
      • The Tag uses NXP’s NTAG 213 Tag Tamper technology which checks the origin of the bottle, detects if the bottle has been opened, and creates an URL for the bottle.
      • Stick it on, and if someone tries to remove it, the NFC chip will separate from the tag, rendering it unusable.
      • Example Tag that uses the NTAG213
      • Datasheet
    • IoT Startup Bricks Customers Garage Door Intentionally – Hack A Day
      • Garadget remotely bricked an unhappy customer’s WiFi garage door for giving a bad Amazon review and being rude to company reps.
      • “Technically there is no bricking, though,” the rep replied. “No changes are made to the hardware or the firmware of the device, just denied use of company servers.”
      • What happens when this fine firm to go bankrupt? Do all their openers stop working?

Figure 1: RPI3 CM Board Parker is working on.
Figure 1: RPI3 CM Board Parker is working on.

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