"@Charles, I could but I won't. The PX4 original is in eagle. Re-using the existing open source design and contributing back to it is easily worth $150.
I tried kicad. The libraries are simply awful. Overall it comes across as the brainchild of…"
"@Charles, I did do the board design myself. It's the only way to get what I want and to properly review the layout. That's an extra $150 for the private eagle license. If I ever want to sell these things then that will be an extra $500.
As I said…"
"@Ye, MAX21105 is more accurate than MAX21100 and cheaper. Availability was just a little too late for this project. It is cheaper since it does not have the motion merging engine that we can't use anyway. The interrupt mechanisms are simpler and I…"
"@Bill, Not much market at all so far. I did this to make sure that I have something that fit inside the aircraft.
I don't plan to sell them since I will get into arguments with the local tax man and he will take most of my money away. I might get…"
"@Mark MAX21100 is one of the lower cost sensors. Around $3.50 @ 1k volume. It doesn't make any sense not to put it on. It will make a nice backup autopilot with an extra gps somewhere on the bus system.
The 64Mbit memory is about $1. I would put…"
"@benbojangles, I am not a company so this was funded with my pocket money. Anything other than very simple is too high risk and too likely to need respins. The prototype cost already runs at $1500. MAX21100 cost is low and flexi proto pcb cost is…"
A distributed and scalable autopilot architecture is attractive to me due to space and sensor positioning demands on my airframes. The existing range of autopilots simply doesn't fit. The uNode (microNode) is the result of my desperate attempts to…