EDV : my black box project (altimeter, acceleration, yaw, pitch and roll)

I made this project to upgrade my first rocket. All was made with Adafruit components (Feather M0, BNO055 and MPL311A2).

Data recorded :

• altitude
• yaw
• pict
• roll
• X, Y and Z acceleration
• battery voltage

The global cost is around 80$. I can share the source code and other resources if needed.



How I put it in my rocket :



And the results :

• thurst

• altitude, acceleration and flight angle

• yaw pitch and roll

I aslo update this with a processional PCB that I draw on Eagle

Very cool!

Very nice project and results. Given the relatively low set up cost, what are the inherent performance limitations? I would like to see the results of a more enduring flight such as 5000 feet at or near mach 1. Are you planning to expand to utilize either for flight stabilization purposes or to assess "tilt" as per whether to fire up sustainer on a 2 stage rocket?

Fred, L2
ICBM, Camden,S.C.
KG4YGP

Very impressive! Assume it's an iterative design and has a bright future?

FMarvinS said:

Very nice project and results. Given the relatively low set up cost, what are the inherent performance limitations? I would like to see the results of a more enduring flight such as 5000 feet at or near mach 1. Are you planning to expand to utilize either for flight stabilization purposes or to assess "tilt" as per whether to fire up sustainer on a 2 stage rocket?

Fred, L2
ICBM, Camden,S.C.
KG4YGP

Click to expand...

Wallace said:

Very impressive! Assume it's an iterative design and has a bright future?

Click to expand...

According to the documentation (https://www.adafruit.com/product/1893) the barometric sensor can go up to 10km. About the gyro and the Acceleration sensor (https://www.adafruit.com/product/2472) the limitation is 16g. For the moment I can't test it with more enduring flight. If you want to test it I can send you a PCB and the source (free) send me an MP. If you just buy the Feather and the altimeter (without the gyro) the cost drop to 30$ (needed part : https://www.adafruit.com/product/2796 and https://www.adafruit.com/product/1893).

Yes I planned to use it in a more complex rocket with these feature :

• firing second stage
  
• abort second stage ignition when tilt is not good
• flight stabilization

I have also another project (I will post it soon). This one is about data telemetry, recovery with GPS and a rocket that self ignite when all of this system are ready to launch and it countdown is over. A kind of autonomous rocket. And of course an abort button for safety.

Very cool! Did the z-acceleration saturate?

mbeels said:

Very cool! Did the z-acceleration saturate?

Click to expand...

Yes because on this flight I make a mistake. The sensor was set to 4g max, instead of 16g.