PX4FLOW not working with TFMINI Lidar

vissin · March 3, 2018, 2:41pm

Hi,

I recently started using PX4 (Using a Pixhawk 1 board with PX4FMU-v3). I got both a PX4FLOW and TFMINI sensor. While I am able to make each of them work individually, but not together. The PX4FLOW is connected on the i2c bridge while the TFMINI is connected to the SERIAL 4/5 port. I have a few hypothesis why this might be happening

PX4FLOW only works with LIDARs connected to i2c ports
PX4FLOW driver only has support for certain LIDARs

Can someone help? Thank you!

vissin · March 4, 2018, 8:15am

Figured out what was not working. The PX4FLOW starts first and takes precedence as the range finder. If I disconnect PX4FLOW and load with TFMINI first, followed by connecting PX4FLOW and starting the driver manually I can get both to work together. When I start the PX4FLOW manually I get a message warning me that PX4FLOW is not the rangefinder.

I want to automate this boot sequence. Is there a way by which I make TFMINI driver start before the PX4FLOW driver on my PIXHAWK? Right not the sequence is PX4FLOW first, and the LIDAR I have to start using extras.txt on my SD CARD.

Thank you for helping!

Jorgehsmp92 · June 17, 2018, 9:09pm

Hello, I have the same problem. Did you find any solution? Did you follow any guide to make tfmini and px4flow work well?

Thank you in advance!

adam · July 13, 2022, 12:04pm

I also use TFmini plus and PX4FLOW and I have the same problem
Using a Pixhawk 4 FMU-v5.
I found two problems
The firse problem is IIC underpowered.
So i cut Vcc and GND connected to my RX1002 and is LED work.
But it didn’t work on QGC so i found the second problem.
IIC cable is different so i change orange and white line and px4flow finally show on the QGC！