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Thread: Teensy 3.5/6 5V Adapter

  1. #1
    Junior Member
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    Aug 2018
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    Teensy 3.5/6 5V Adapter

    Hi all,
    I have a Teensy 3.6 and it is awesome!. However, the pins on the board are 3.3V tolerant and my sensors are mostly 5V. So I cannot use them together without voltage downgrade and upgrade as well as an external power source for the sensors. Because of this, I have developed a PCB that would allow me to communicate safely with both the Teensy 3.6 and the sensors. It is still a work in progress and some testing still needs to be done.
    I would like to make it a commercial product, so that more people would be able to use their sensors and be more attracted to the 3.3V tolerant Teensies because that was also holding me back before getting one. And though, before that I would like to know whether or not it is reasonable to make it available as a commercial product when testing is done, and if there is a market for it. Would any of you be interested in such Adapter?

    Thanks a lot,
    VicDev

  2. #2
    Senior Member+ Theremingenieur's Avatar
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    Such an adapter might be interesting for the small hobby market, but I suspect that the actual 3.3V and even 1.8V technologies which are currently used in new industrial designs will make it down to the hobby market very soon. Most 5V versions of MCU peripheral ICs are already obsolete or are marked as not recommended for new designs.

  3. #3
    Senior Member brtaylor's Avatar
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    I'm just one data point, but all of the sensors I use already (MPU-9250, BME-280, uBlox GPS, SBUS receiver, AMS5915 pressure transducer) are either: 1) already 3.3V voltage input, or 2) 5V voltage input with 3.3V signal, so no need to convert the signal voltages for me. Just need to be careful about adding new sensors to read their spec sheet a few times.

    Brian

  4. #4
    Senior Member PaulStoffregen's Avatar
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    Maybe start by making a small batch and sell them on Tindie?

  5. #5
    Junior Member
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    Yes, obviously it is not industry appropriate and only for hobbyists. I am only a student that's working alone and i developed it just for my robot and thought maybe more people would find it useful. Bridging technology is all I'm capable of at the moment from home

  6. #6
    Junior Member
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    Um, thanks i'll try that!

  7. #7
    Junior Member
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    Is there a schematic of this adapter board?

  8. #8
    Junior Member
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    Aug 2018
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    This is probably a bad decision from a business point of view hahaha but yes there is. Keep in mind I am new to this... Click image for larger version. 

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