input method ( keyboard)

[fredvol]

Idea:
I think it could be very useful to be able to put some markers in the log.
The idea is to ask the test pilot to push some buttom at the begining of the manoeuvre and at the end.
The most important to be able at the end of the manoeuvre to discard the test ( collapse too small , or too big for exemple) for the analysis software to be able to ignore the datas:

There is 3 strategy :

• send the data as sensor
  -send data as radiocommand
  -send data via debug port

Here the list of the different option to send data to the device:

• Wifi : might be possible to make a apps with button, i m not sure if the data can be send
• I2C: looks like the port is share with GPS , need to see how to send data and to log them
• UART
• mirco usb serial port
• Rc in

Could be interesting to see where the air speed sensor should be plug.

Looks like the driver should be added in the source
to be investigate

[fredvol]

One option can be to use a I2C splitter:

https://store.mrobotics.io/mRo-JST-GH-GPS-Port-to-I-C-Bus-Splitter-p/mro-jstgh-gps-i2c-split-mr.htm

an other one active ( for managing the 5V voltage)
https://store.mrobotics.io/ProductDetails.asp?ProductCode=AUAV-I2C-HUB-MR

with this kind of keyboard:
https://www.instructables.com/id/Arduino-Nano-I2C-Matrix-Keypad-With-PCF8574PCF8574/

also on the next step an small screen can be added to confirm the test pilot that the device is fully ready before taking off ( exemple: the GPS sattelite reception )

[fredvol]

regarding the RC in here some info:
https://docs.px4.io/v1.9.0/en/assembly/quick_start_pixracer.html

https://docs.px4.io/v1.9.0/en/getting_started/rc_transmitter_receiver.html

https://www.dronetrest.com/t/rc-radio-control-protocols-explained-pwm-ppm-pcm-sbus-ibus-dsmx-dsm2/1357