Cecemel
Member level 5
Hi,
I ordered a gps and magnetometer module from eBay for my quadcopter. The gps works fine, but i can’t get the I2C mag to work. (I’m using a Matek F405-CTR running iNav.)
Before i ask for a replacement and have to wait for shipping from China, i would like to make sure this one really is broken.
With the mag connected to the flight controller, i probed the SDA and SCL lines with my scope. After disabling the internal I2C barometer, both lines are constantly high, i only get a second of activity when i set the mag to ‘auto’ in the fc’s settings. I suppose the is the fc ‘scanning’ for devices?
When probing both lines of the mag without them being connected to the fc (with a 2.2K pull-up resistor to 5v), i don’t get any activity at all.
Do i need to get a replacement or is there something else i should test?
Thanks
I ordered a gps and magnetometer module from eBay for my quadcopter. The gps works fine, but i can’t get the I2C mag to work. (I’m using a Matek F405-CTR running iNav.)
Before i ask for a replacement and have to wait for shipping from China, i would like to make sure this one really is broken.
With the mag connected to the flight controller, i probed the SDA and SCL lines with my scope. After disabling the internal I2C barometer, both lines are constantly high, i only get a second of activity when i set the mag to ‘auto’ in the fc’s settings. I suppose the is the fc ‘scanning’ for devices?
When probing both lines of the mag without them being connected to the fc (with a 2.2K pull-up resistor to 5v), i don’t get any activity at all.
Do i need to get a replacement or is there something else i should test?
Thanks