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  1. Looks like all should be that simple, the crystal...

    Looks like all should be that simple, the crystal should be removable using the same method as it is right next to the edge on all. Keeping in mind the 4.0 uses a 24MHz crystal.
  2. Removing the crystal oscillator from a Teensy 3.0...

    Removing the crystal oscillator from a Teensy 3.0 board was surprisingly easy.

    I wasn't trying to save the XO, so I just put a big screwdriver tip in my soldering iron, turned it up to 800F/425C,...
  3. In my continual search for unnecessary accuracy...

    In my continual search for unnecessary accuracy and a tidal wave of information from members here, the EEVBlog forums, and a variety of places around the web, I think I have two paths:

    Use a...
  4. OK, so the maximum frequency out of these GPS...

    OK, so the maximum frequency out of these GPS modules is 10MHz. The internal clock, I'm led to believe, is 48MHz, so an even division of that should be cleaner.

    There is a PLL clock multiplier,...
  5. An idea occurred to me today. I thought I'd check...

    An idea occurred to me today. I thought I'd check and see how accurate the clock in a GPS module is when it is not locked to satellites. I noticed that the NEO-7N and NEO-M8N and NEO-M8Q GPS...
  6. TelephoneBill That is true, however, this would...

    TelephoneBill That is true, however, this would require that I always have a GPS lock.

    Theremingenieur On some level, I'm chasing accuracy for its own sake. However, that -1ppm is only a measure I...
  7. TelephoneBill, yes, that is a good post. I am...

    TelephoneBill, yes, that is a good post. I am very interested in the information there on changing the registers on the chip to adjust the oscillator.

    Although if I can remove the crystal without...
  8. I've not removed a surface mount component this...

    I've not removed a surface mount component this challenging before. I do have a preheater (that hot fan the board sits on) and a rework hot air gun. Maybe a tiny nozzle and the preheater...

    Thank...
  9. Teensy 3.6 crystal accuracy and how to improve it

    I'm not new to electronics, but I am fairly new to Arduino and very new to Teensy.

    For my first real project, I'm working on this in stages. The plan is start with a frequency counter with a GPS...
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