This little compass module is perfect for Arduino and micro-controller projects and has “bread board” ready pin pitch, this could also be used to relocate to an external compass, on flight controllers that are having mag problems from the proximity to the electric motors. The breakout board includes the HMC5883L sensor and all filtering capacitors as shown. The power and 2-wire interface pins are all broken out to a 0.1" pitch header.
Specs: Interface: I2C 2.16-3.6VDC supply range Low current draw 5 milli-gauss resolution Dimensions: 17.78x17.78mm
Go to copter.a r d u p i l o t DOT c o www.link there are very detailed instructions how to align the external compass and how to disable the internal compass by cutting a track on-board the APM2.5, setup details, etc.
Go to copter.a r d u p i l o t DOT c o www.link all the connection details are there. HKPilot Mega V2.5 is the exact clone of APM2.5 so follow these specific instructions and do not forget to cut the track on your HKPilot 2.5 for disabling the internal compass.
Even though its the same HMC5883l . I bought 2 different versions ,one was L883 2202 and it was ****,very temperamental like my misus. The other had a L883 2106 ,smaller board and works perfect. Installed it in a puck with a ublox 6m gps and mounted it on a naz gps post. The apm2.5 loiter is as locked in as my naz-m . The effort of external mag is well worth it.
Haven't used wii,extra sensors can be added using adapter boards. Huge Mwii community on rc grou p.
Valkman * theres a how to in the ardupilot 2.5 wiki . Its really straight forward ,once you cut the trace,your new mag is pretty much plug and play. Do the live calibration and you're good to go. Very important to point the board the right way forward.If you get the "toilet bowl affect,turn the board a few degrees in the opposite direction (mag board ).
This is now replaced with HMC5983. I bought the newer version for half this price.
For once I am happy a part is BO just when I was about to buy!
This is exactly what I needed for my 550 DJI clone, I was getting 40 degrees shift on my mag this has reduced to zero thanks to being able to move the mag away from all the electrics. As a bonus my gps seems happier, fitting was easy just had to cut trace connection from the mag and change one line on the sketch. picture in files tab of my setup.
At that price it would be nice to have a 4 pin DF13 connector cable for I2C connector included or at least sold separately for connecting to HKPilot Mega V2.5 (or APM2.5). PRODUCT ID: 074000072 is pretty much the same, but the included cable is also no good for APM2.5. You can visit copter.a r d u p i l o t DOT c o www.link there are very detailed instructions how to align the external compass and how to disable the internal compass by cutting a track on-board the APM2.5, setup details, etc.