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  • Is the processor still the mega2560?
  • APM 2.0 has the latest sensors (gyro, barometer, accelerometers), better internal wiring, better future support from a firmware base, is smaller, and just a revision of the APM 1.0. One plus is all the sensors are digital and thus noise is far less of a problem. Again, APM 2.0 is just a very good revision with the latest sensors and a couple of better features. THe kicker is the new APM 2.0 is cheaper than the old APM 1.

     

    APM 1.0 with oilpan is good and does everything APM2.0 does. It has a barometer that is slightly less sensitive, it uses analog sensors and then a digital to analog converter chip to read the anolog sensors. The GPS module is always external, and the kit comes with the magnetometer (AKA compass) which is a built in feature of APM 2.0.

     

    There are one or two things not yet compatible with APM2.0

    Optical flow-basically taking an optical mouse sensor instead of using sonar

    The spektrum satellite reciever adapter (This whole idea is really for super lightweight indoor quads because you are using the smaller Spektrum module which in theory has less range and features). Being APM2.0 is lighter and smaller than APM1.0, just use the full radio reciever and it doesn't matter.

    Neither of these is considered a great loss and optical flow is very experimental.

     

    The following sensors are optional and work 100% with either APM

    Airspeed-mainly for planes, not so much helis

    Current sensing

    Voltage sensing

    Sonar

     

    The bottom line is APM2.0 is better in every respect, has the same basic sensors (better versions though), works with all the important sensors, should one day work with the expermental sensors/adapters. It has a smaller lighter footprint, no soldering, no fuss just plug it in and use it. It's also an amazing $200.

    The older APM 1.0 costs $249 the last time I checked, has older analog sensors, and required good soldering skills to assemble. The only gotcha is the optical flow sensor works with this board but not APM2.0. Again, that's not a reason for me to recommend APM 1.0 over 2.0.

     

     

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