APM Quadcopter Setup

 https://www.instructables.com/APM-Quadcopter-Setup/

PCB Board design

Kicad Beginner video tutorial.
https://www.youtube.com/watch?v=EPH23zhPg50

Fritzing PCB Tutorial
https://fritzing.org/learning/tutorials/designing-pcb

Export to gerber 

https://www.lioncircuits.com/faq/pcb-fab/how-do-I-generate-gerber-using-fritzing

Ordering from pcbway

https://www.youtube.com/watch?v=DwQGvYaPBGQ

Full process pcb ordering from jlpcb

https://www.youtube.com/watch?v=6iRjZMHVvhs

Ardupilot VTOL

https://www.youtube.com/watch?v=63yH3-an09E

1) Download firmware Plane Official.

2) Platform: Cube Orange.

https://www.youtube.com/watch?v=b7WltZt8CC8&t=1114s

3) Connect to Flight Controller.

4) Config - Full parameter list 

Q_ENABLE = 1

CAN_P1_DRIVER = 1 (Enable)

CAN_P2_DRIVER = 1 (Enable)

BRD_SAFETYENABLE = 0 (disabled) - Because using GPS without a safety switch

GPS_TYPE = 1 (Auto) change to 9 (DroneCAN)

ARSPD_TYPE = 1 change to 8 (CAN)

5) Reboot.

SERVO OUTPUT

1 = Aileron 1

2 = Elevator 1

3 = Throttle

4 - Rudder

5 = Elevator 2

6 = Aileron 2

7 = Disabled

8 = Disabled

9 = Motor 1

10 = Motor 2

11 = Motor 3

12 = Motor 4 

6) Reboot

7) Check SERVO Output Min, Trim, Max.

8) ESC Calibration (Vtol have 2 types of ESC - Quad/Airplane)

Q_M_PWM_MAX = 0 SET TO 1900

Q_M_PWM_MIN = 0 SET TO 1100

9) Write Parameters

10) GPS Setup/ Airspeed setup

CAN_SLCAN_CPORT = 0 Disabled change to 1.

Reboot

OPTIONAL HARDWARE - DRONE CAN/UAVCAN-SLCan Mode CAN1 - Should Detect GPS. 

11) QP Extended Tuning

12) Full Parameter List

Q_ANGLE_MAX = 3000 cdeg Bigger plane reduce this value. (10 - 15) .

https://www.youtube.com/watch?v=WCHXZJN_GG0

QHOVER = Rudder is not moving. (Quad)
MANUAL = All Control surfaces will works. Check all surfaces are in correct way. Apply reverse to correct.

Basic Tuning Page

Airspeed m/s (Setup for Forward Transition)

Cruise = target airspeed

FBW mi = Shut off vtol motors

FBW ma =  maximum speed

Airspeed Ratio = ...

Initial Testing.

Hover mode in Qstabilize mode, and transition to fixed wing to less the jerky attitude with GPS.

https://www.youtube.com/watch?v=GGfpOZUN96A

companion computers for ardupilot

1. Good step by step tutorial but no video tutorial.

https://github.com/ArduPilot/ardupilot_wiki/blob/master/dev/source/docs/raspberry-pi-via-mavlink.rst

2. Same but use bigger pi

https://github.com/ArduPilot/ardupilot_wiki/blob/master/dev/source/docs/raspberry-pi-via-mavlink.rst

3. Video tutorial for item no 2.

https://youtu.be/cZVNndOaYCE

4. Pixhawk and arduino

https://discuss.ardupilot.org/t/mavlink-and-arduino-step-by-step/25566

failsafe ardupilot flysky

https://youtu.be/EcfWWVCo6B0

Ardupilot Constantly beeping ESC and jerky motor

 https://discuss.ardupilot.org/t/constantly-beeping-esc-and-jerky-motor/37679/7

Shubham_Thakur

Jan '20

I found solution to the problem. My tx pwm range for throttle was 1000 to 2000 and throttle range in Mission Planner was 1100 to 1900. I updated the range to 1000 to 2000 in mission planner and the beeping stopped.
Thanks for the help
Cheers.

VTOL Fixed Wing Journey using PX4.

PX4

1. Setup using px4 and select preset firmware.

2. Setup Failsafe. To test failsafe, make sure the drone is armed and test.

2. a. Failsafe RC Loss steps:

2.a.1. Reduce throttle trim to reduce the pwm value under 975 pwm (check with mission planner for pwm value, the set preset value in QgroundControl (Failsafe_thr_, pwm value).

2.a.2. Make sure to armed the drone to test the RTL.

3. Failsafe RTL: Drone will first detect loss of rc signal. Then the flight mode change to HOLD. After few seconds, it will initiate RTL. The drone will follow RTL Failsafe altitude in RTL Failsafe. There are two phase in RTL, one is Return altitude, second is loiter altitude. Suppose the drone will comeback at Return Altitude, then loiter to second altitude then landing.

No cpu load information error

https://blog.csdn.net/Googollll/article/details/120609454

Reinstall qgroundcontrol together with its drivers.

Bootloader atmega 328 arduino

https://support.arduino.cc/hc/en-us/articles/360012048080-How-to-burn-the-bootloader-between-two-Arduino-UNO

This is the steps to burn bootloader by using 2 arduino.