Hi, I would like to make a small arducopter quad with optical flow + laser altitude.
I’ve flown with a px4flow and a benewake mini lidar, but that’s to big and heavy.
I saw this topic, Survey for new tiny optical flow manufacturing
and I can’t find the topic where holybro announced working on a CAN-Flow module.
But i cant’t buy these yet and i don’t mind that i’s not entirely plug and play.
I like this board: https://store.bitcraze.io/products/flow-breakout
Cheap and likely to be able to work with minimal effort.
same flow sensor with serial connection. I think this would be more work to get it to run. But i do have spare uarts.
The VL53 in the bitcraze flow-deck should be plug and play, i2c and there is a driver.
I’ve not yet used a external spi connection on a pixhawk.
From what i’ve read the flow sensor on SPI can be auto-detected (with the apm board).
Is this true?
There is normally no external spi-out port on a pixracer, but is there a way around that?
Like using the SD-Card slot, although i would like to keep the SD, or this: Configuring wi-fi port as SPI port in a Pixracer board.
This omnibus-F4 has a external SPI: https://store.myairbot.com/omnibusf4v6.html
Would that be available when flashing it with the pre-compiled firmware for omnibusf4 (3.6.* - chibios)?
A pixhawk4 has SPI-out, and weighs 16g with all the casing gone, but i would like something smaller (and cheaper is nice to)
But would this work, simply connecting the bitcraze board to the pixhawk4 with spi ? (And i2c for the VL53 sensor)
Or do i need to change the config and compile my own firmware?