Everything for Electronics
Posted in: Nuts and Volts (August 2012)

APM 2.0 gets Upgraded to APM 2.5!

Here goes the full list of changes (you already know all its features):

  •     No more shield/daughterboard: magnetometer and dataflash were moved to the main board, making it easier to assemble, repair and hack.
  •     No more on-board GPS, but we added a new 6-pins DF13 connector for our new GPS cable standard (PX4) and kept the old but reliable Molex (EM-406) connector for old GPS compatibility.
  •     The old radio-modem connector is gone and now is being replaced by our new 6-pins DF13 connector (like the GPS, because both are UART’s. Got it?), this will make it compatible with PX4 and prevents users from blowing up the UART mux.
  •     We added a second protection fuse and diode (you are no longer required to solder it yourself) for extra reverse polarity and short circuit protection.
  •     The old I2C connector is gone and has been replaced by our new 4-pins DF13 connector (yeah PX4 compatible. Oh wait correction… None of both (PX4 & APM2.5) are compatible with each other, we created this standard together as a team, but I have to give the average of the credits to PX4).
  •     Added a “mystery” 6-pin DF13 Connector that will be used later. I know you like surprises so please stay tuned. No big deal but is really cool and will save you some soldering here and there.
  •     Added “Magnetometer Jumper” that allows you to disable the on-board magnetometer, so you can attach an external one.
  •     Added extra LED attached to the PPM encoder (Atmega32-U2) on pin PC7. This will allows us later to use it as PPM status indication and leave those poor TX/RX LED’s do their intended job.

 

 

[Source] http://diydrones.com

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