LibrePilot Forum

Users => Applications - Autonomous Flight => Topic started by: アイラ on February 20, 2018, 04:10:30 pm

Title: QMC5883L with Revo. Wrong magnetometer?
Post by: アイラ on February 20, 2018, 04:10:30 pm

hi, i've got my magnetometer today and it was labeled as a HMC5883L. but i found the same one on other sites where other people say its actually a QMC5883L, so it seems like i have a QMC5883L. Other sites say its the same magnetometer just made by a chinese factory and that the adress is different.

Is it possible to get a QMC5883L working? the one i got didn't work. I have lent the one from my friend, it has a label with HMC5883L on it and it worked pretty good.

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: f5soh on February 20, 2018, 04:24:07 pm

Cloned QMC5883 version is not compatible with HMC5883, need codes changes, not only the I2C address.
http://wiki.epalsite.com/index.php?title=HMC5883L_Electronic_Compass
http://wiki.epalsite.com/index.php?title=QMC5883L_Electronic_Compass

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: mr_w on February 20, 2018, 08:21:53 pm

Hi アイラ,
I have just ordered one of those new GPS/MAG units with QMC5883L from banggood. I can add support for it as soon as I get it.

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: TheOtherCliff on February 20, 2018, 08:24:55 pm

Do you think it can be automatically detected?

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: アイラ on February 20, 2018, 09:03:16 pm

Well mine did not work, so i think i will order a new one, propably from china, because now its too cold to fly anyways, so i could wait.

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: mr_w on February 20, 2018, 09:40:55 pm

Quote from: TheOtherCliff on February 20, 2018, 08:24:55 pm

Do you think it can be automatically detected?

Most definitely. Pity though that they choose the chip-id register to have value 0xff  :o

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: sam028 on March 11, 2018, 04:03:58 pm

Quote from: mr_w on February 20, 2018, 08:21:53 pm

Hi アイラ,
I have just ordered one of those new GPS/MAG units with QMC5883L from banggood. I can add support for it as soon as I get it.

I used GY-511 from Banggood, there works fine.

Title: Re: QMC5883L with Revo. Wrong magnetometer?
Post by: tarbis on September 20, 2018, 06:27:39 pm

Quote from: sam028 on March 11, 2018, 04:03:58 pm

I used GY-511 from Banggood, there works fine.

How did you know that this module is supported? Is there some documentation about supported modules or chips?