PX4flow revival

The 1st spill on a body part in 25 years of chemistry experiments. That was a fast run to the shower. Never saw someone use the showers in college, but it must have taken quite a cleanup.



Also noted the boards don't float unless they're dry.



Unfortunately, no-one wanted to pay for a radar experiment, so it's 1 more shot at a better optical flow system.



The PX4flow is expensive, heavy, & fragile. Its sonar module is insufficient, so you need to replace it with a more powerful module. It only reads the UART output of the MB1043.


The trick is the more powerful module outputs a different protocol, so you need to pass the sonar readouts through the mane microcontroller to be translated & then to the PX4flow. There's also the glue logic to invert the UART voltage.


The PX4flow requires a brand new airframe with more capacity. It won't withstand any crashes. The mane problem is building a suitable airframe with some form of crash resistance.





The Turnigy micro quad seems to have the most capacity of any indoor system.




20% of the T1811-2900kv motors from Hobbyking have broken wires, so you need to order around double the required number. They seem to use a Y winding with 3 strands per winding.


Getting the propellers on the motors takes some doing. Getting more capacity would probably take stacking 2 micro quads, a $200 beast.