MEP EP#50: The FX Development Board has landed!

Parker Dillmann |   |  Alexa Killswitch, Conference McConference Face, FX Dev Board, Its Gif not Jif...., MacroFab, MEP, Peeqo, Podcast, Space Echo, The Hertz Locker, The Thunder Ohm

MacroFab Engineering Podcast

Stream:

Download: MP3
RSS Feed: Link

Runtime: (24:50)

Hosts:
Parker Dillmann
Stephen Kraig

Guests:
N/A


Figure 1: The FX Development Board has landed!

Figure 1: The FX Development Board has landed!
Figure 2: Alexa Kill Switch.

Figure 2: Alexa Kill Switch.

Podcast Notes

  • Continuing from last weeks discussion of the two conference room names at MacroFab HQ.
    • Emmett Naughton on twitter says: Conference Room A: The Hertz Locker and Conference Room B: The Thunder Ohm.
    • Parker is making plaques for the conference room doors now out of PCBs.
  • Space Echo Update! Last week Parker and Stephen asked for some clarification on some old school audio measurements so they could calibrate the Space Echo.
    • Steve Kuehn a self proclaimed gray beard from Austin says the following. 0 dBm in the audio business refers to voltage level that will produce 1milliWatt into a 600 ohm load. But over the years, it refers to a voltage level even if you are not aren’t using a 600 ohm load so it is a little of a misnomer. If you do the math, 0 dBm is the same as 775mVrms sine wave signal source. -50dBm would be 2.45mVrms.
  • FX DEV BOARD IS LIVE!! Check out the Crowdsupply page and get one! See Figure 1!
    • Dual solderless breadboards
    • 2.1 mm dc input jack for use with AC-to-AC wall wart
    • +/- 15 volt @ 200 mA power supplies with over-current protection
    • +1.25 to 9 V @ 150 mA adjustable power supply
    • Split voltage rail (1/2*9 Volt Rail) @ 15 mA for use as a virtual ground
    • User selectable power supply or 9 V battery
    • User selectable power supply connections to breadboard
    • ¼” input and output jacks directly connected to breadboard
    • “True bypass” switching to automatically switch circuit on and off
    • Multiple integrated potentiometers
    • Useful diagrams and tables written directly on silkscreen
  • Amazon Echo Kill Switch by Sparkfun
    • ALEXA KILLSWITCH. See Figure 2.
    • Build a power switch for the Amazon Echo that can be activated from a voice command
    • The idea is simple: you say a particular phrase, such as “Alexa, trigger kill switch,” which activates an IFTTT applet that calls a function on the Particle Photon. The Photon controls a transistor that cuts power to the Echo.
    • To turn it back on, you’ll need to press the button on the breadboard or create another IFTTT applet that causes the Photon to reconnect the power.
  • Arduino powered Honeypot
    • A honeypot is a device meant to attract/pre-occupy hackers, by providing something like a red herring to them; in this case, a system which looks and feels like an ancient bank credit card processing gateway from the 1980’s… complete with slow-speed 1200 baud, and uppercase-only text.
    • To see it for yourself, just use PuTTY (or actual telnet) to m80.ddns.net, port 23.
  • Peeqo – Robot that responds with gifs
    • Best IoT “companion” robot of all time.
    • Screen on the front with eyes. Has a complex animatronics inside for movement.
    • Ask it to do tasks and it will respond with a relevant gif and act accordingly if it feels like it.
    • Build Log!

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