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A quadcopter, also known as a quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors.

3
votes
3answers
I'm using the telemetry kit from 3DR robotics (433MHz) to interface with Ardupilot Mega 2.6, controlling a quadcopter. The Mission Planner (v1.2.84) by Michael Oborne works well with the telemetry … kit, transmitting flight data (IMU, compass, GPS etc.) from the quadcopter to the GCS and displaying them in their GUI. However, I would like to see the same data in the hyperterminal (windows system …
asked Nov 5 '13 by metsburg
4
votes
5answers
quadcopter to lift using this code: #include <Servo.h> int maxspeed = 155; int minspeed = 0; Servo motor1; Servo motor2; Servo motor3; Servo motor4; int val = 0; int throttleCurveInitialGradient = 1 … +=throttleCurveInitialGradient; } void setAllMotors(int val) { motor1.write(val); motor2.write(val); motor3.write(val); motor4.write(val); } But the issue is, as soon as the quadcopter takes off …
asked Dec 19 '13 by metsburg
13
votes
3answers
In continuation of the question I asked here: Quadcopter instability with simple takeoff in autonomous mode ...I'd like to ask a few questions about implementing a basic PID for a quadrotor … vertical altitude hold on this thing. I was pushing up the RPM to the max limit, which is why the quadcopter kept losing control at full throttle. There was no room for the RPM to increase when it …
asked Jan 13 '14 by metsburg