Px4Flow: Trouble getting any response over I2C

[ppoirier]

Yes Loiter is the preferred mode for OpticalFlow.
Rangefinder is a TFMINI with I2c Arduino interface == the cheapest you can get

How to make the TFMINI rangefinder talk I2C

[image] The Benewake TFMINI is a small Laser RangeFinder that has a lot of potential as a replacement for the Sonar. Its in the same price range as the Maxbotix and it has a range up to 12 Meter indoor and 6 Meter outdoor. It comes preconfigured in binary output at 115200 Bauds and we can change the mode by issuing these commands through the Benewake console (http://benewake.com/en/down.html) or using Realterm: The command of standard output is 42 57 02 00 00 00 01 06 The command of pix …

I think the nominal noise is more a PX4 type of sensor signal ?
As a substitute we can look at FIX,FIY - optical flow X and Y axis innovations (mrad/s) , here is the graph from my last test with 3.6

I also updated the discussion about 3.6 and Loiter mode with Optical Flow, just amazing !!

New Loiter testing

OMG @Leonardthall The new Loiter with OpticalFlow is soooooo much FUN !!! Its fast and agile on the sticks, and rock solid when I let it fly no inputs. Please note that these test are made indoor with no GPS attached, just PX4FLOW and a TFMINI Lidar. Here is the Y axis of OpticalFlow and PX4Flow IMU and Pixracer IMU The amplitude is equivalent to the manual alignment tilt&roll test like in the OpticalFlow wiki, but this time it is inflight !! [image]