Meeting Details

• Moderator: ssm
• Protocol: fma
• Attendees:
  • ssm
  • cmot
  • fma
  • lan
  • lpe
• Start: 09:40
• End: 17:30

Agenda

Handling sensors with the Arduino Nano

• Problem of the two missing pins (A6, A7, which are only readable analog) is discussed
• Several solutions possible:
  • HC-SR04 Single Pin Usage (not working in first tests, needs more evaluation)
  • Rewriting the NewPing library, making it possible to trigger two sensors at a time and wait for both Echos. Saves up 5 pins with 10 sensors.
  • Using two microcontrollers like Arduino Minis

Speed calculation with the accelerometer

• Problem: Quadcopter does not know it's own speed.
• Possible solution: Integrating the acceleration
  • Maybe not working because of drift.
  • Is the drift constant and can it be determined for calculation?
• Also possible: Calculating speed via the ultrasonic sensors and comparing it to the integrated speed if both are avaliable

Next flight tests on Friday

• Next flight tests on 31.07. for testing the speed controlling.