Since I last posted to the blog, we've made quite some progress:
- We have interfaced the Atmel to a USB-1408FS Measurement Computing DAQ
- We have interfaced the DAQ to a computer running Matlab (without the data acquisition toolbox)
- We have installed an electronic barometric pressure sensor in the RV-6 so that we can measure altitude with the microcontroller.
- We have written Matlab code to run a control loop aimed at keeping the barometric pressure constant (ie altitude hold.)
Long story short it’s awesome. Check the video below.