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Thread: Prop shield compatibility with Teensy 3.6

  1. #1
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    Prop shield compatibility with Teensy 3.6

    I assume this is a simple question, does the Teensy 3.6 plug straight in to the prop shield with motion sensors? I have a Teensy LC with pins plugged in to my propshield at present and a Teensy 3.6 with no pins soldered at present. Using the Teensy LC as a guide it would appear that the Teensy 3.6 would plug straight in and I assumed that was the case but thought I'd ask to be on the safe side. My prop shield has female sockets soldered so I assume I just solder pins to the Teensy 3.6 including the 5 pins that go across the board and plug it in? This assumes the voltage levels are compatible?

    Anyone?

  2. #2
    Senior Member PaulStoffregen's Avatar
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    Yes, except for the DAC. Teensy 3.6 has its DAC output in a different location than Teensy LC and 3.2. If you want to use the audio amp part, you'll need a short wire to route the DAC signal.

    There's also the obvious matter that Teensy 3.6 is physically 1 inch longer. If mounted above, it will make access to the right side pins for LED signals tricky. Best to use sockets and pins rather than hard soldering both sides to the same pins.

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    With regard to the DAC does that mean I need to leave one pin unconnected? Not intending to use audio at this time, I just want to record accelerometer data to SD card.

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    My 3.6 will be mounted above the prop shield by the way as the prop shield already has sockets soldered in place

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    Senior Member+ MichaelMeissner's Avatar
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    Quote Originally Posted by Experimentalist View Post
    With regard to the DAC does that mean I need to leave one pin unconnected? Not intending to use audio at this time, I just want to record accelerometer data to SD card.
    Yes, if you don't need audio output via the DAC, you can leave the pins in the back of the prop shield unconnected (the prop shield only uses the DAC pin on the back row if memory serves). Note, the prop shield has pull-up resistors for the I2C bus that the accelerometer is connected to, so you don't have to add extra ones on the 3.6.

    IIRC, some EEPROM locations are also used in configuring the accelerometer.

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    Quote Originally Posted by MichaelMeissner View Post
    you can leave the pins in the back of the prop shield unconnected
    So I can just solder the side pins and leave the central pins unconnected on the Teensy 3.6?

    I am presuming I can use the SD card and accelerometer at the same time without conflict?

  7. #7
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    Can anyone show an image of the Teensy prop shield and Teensy 3.6 stacked to show the pin alignment?

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    Quote Originally Posted by Experimentalist View Post
    Can anyone show an image of the Teensy prop shield and Teensy 3.6 stacked to show the pin alignment?
    Don't worry, I've got it now and will post the image for others in due course (o:

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