Hello all,Yes I am new so the first question to fly is pros and cons between the ArduPilot and Paparazzi Project components?I will just sit back and listen to the words of experiance.ThanksGorden
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What Olivier didn't mention is that the MCU used on Paparazzi, the LPC2148, is an order or magnitude more capable than the Atmega168/328 used in the Ardupilot.
- 512kB Flash vs 16/32kB
- 32kB Ram vs 2kB/1kB
- 32-bit core vs 8-bit core
- 60 MIPS vs 20MIPS
So the paparazzi board will keep going long after the ardupilot has run out of horsepower. Whether or not you need this horsepower is another matter - if you don't know enough to know whether or not you'll need it, you probably don't need it. If you want to start crunching large state vectors through estimation filters for very accurate control, you probably want the paparazzi board. As Olivier said, both can be upgraded to IMU stabilisation, and the LPC2148 will come into its own at that point. Paparazzi also uses, as standard, the u-blox 5 chipset which is about the best commercial one you can get at this level for dynamic applications like this (it is usable with the Ardupilot as well, although I believe ardupilot only currently supports the slower, universal and more cpu-intensive NMEA interface, vs the native, faster, but vendor-specific binary interface. You need the binary interface to put the ublox 5 into the optimal dynamic mode).
Ardupilot is cheaper - really it is just a breakout board for an Atmega168 - the 'project' is the code and the other users' collective experience.
I would say you can't go wrong with Ardupilot, especially if you're unsure. One day you may want to graduate to Paparazzi - you'll know when you do, and you'll know enough to appraise the differences yourself.
I echo Olivier - if you're just starting out, go with Ardupilot - you've really nothing to loose.
Replies
- 512kB Flash vs 16/32kB
- 32kB Ram vs 2kB/1kB
- 32-bit core vs 8-bit core
- 60 MIPS vs 20MIPS
So the paparazzi board will keep going long after the ardupilot has run out of horsepower. Whether or not you need this horsepower is another matter - if you don't know enough to know whether or not you'll need it, you probably don't need it. If you want to start crunching large state vectors through estimation filters for very accurate control, you probably want the paparazzi board. As Olivier said, both can be upgraded to IMU stabilisation, and the LPC2148 will come into its own at that point. Paparazzi also uses, as standard, the u-blox 5 chipset which is about the best commercial one you can get at this level for dynamic applications like this (it is usable with the Ardupilot as well, although I believe ardupilot only currently supports the slower, universal and more cpu-intensive NMEA interface, vs the native, faster, but vendor-specific binary interface. You need the binary interface to put the ublox 5 into the optimal dynamic mode).
Ardupilot is cheaper - really it is just a breakout board for an Atmega168 - the 'project' is the code and the other users' collective experience.
I would say you can't go wrong with Ardupilot, especially if you're unsure. One day you may want to graduate to Paparazzi - you'll know when you do, and you'll know enough to appraise the differences yourself.
I echo Olivier - if you're just starting out, go with Ardupilot - you've really nothing to loose.