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### can I still use my APM1 board?

Before ordering APM2, I wanted to show a young college kid how to use arducopter, but I have APM1.

Could i still use APM 1.0?

Dara

### BeagleBone: Neural Network Control

http://nn-os.org/ provides a new computing environment for Neural Network Control applications of all sorts.

Essentially the environment is comprised of two components:

1. Neural Network adaptive learning, currently back-propagation

2. Petri Nets with

### Book: Neural Network Control of Nonlinear Discrete-Time Systems

by J. Saranpagani

Taylor and Francis Group

An encyclopedia like list of all known NN applications to control systems all the way from 1940s to now with MATLAB and some C code.

All the math explicated with explicit calculations so the coding can be mor

### Ideas for simulation input to NN

I got this generous input from one of the XFOIL's usergroup. These ideas give a better simulation for the copter than the one's I have hacked already since the suggested tools are more mature and worked on by the experts in the field.

Amazing thing I

For those interested to develop control systems for rotor crafts:

I was told  that the simulation aspect and calculations for the phase-space can be obtained from this software, rather wri

### Offline Training: Take-off in Winds

Hello

Finally got to the actual control algorithm for the Neural Network based guidance system:

The test cases were variety of take-offs, straight or bowed or even crashes

### NN accuracy for quad copter

Helllo

Single layer of 64 neurons with 8 input and outputs and learning rate set to 0.1.

Training cases created for vertical take off. The Universal Approximate was constructed for smooth function:

CONTROL: Vn+1 --> Vn

V is {motor1, motor2, motor3, mot

### Book: Machine Learning

For our 2 layer network I am using calculations similar to this book.

There are other forms of machine learning that probably would benefit arducopter.

Dara

### Slow User Trainer

Hello

As a beginner Arducopter user, I think an NN application to take off and land Arducopter semi-manullly is great.

In other words a super slow take off indoors or outdoors can allow the new user to learn the controls at an RC and learn the caveats

### Offline Training Data for QuadCopters

Hello

Based upon the calculations in the paper:

ROBUST NEURAL NETWORK CONTROL OF A QUADROTOR HELICOPTER

C. Nicol,C.J.B. Macnab, A. Ramirez-Serrano

An analytical simulator was coded in Mathematica 8.x for quadcopters:

### Need these parameters for ArduCopter

1. Drag Coefficient

2. Thrust Coefficient

3. Rotor Inertia (I assume this depends on the motors)

These are needed to train a particular ArduCopter off-line. And would you be kind and mention how can I measure those for my own ArduCopter.

D

Does anyone has Quad Copter simulation data for a simple vertical take off?

If possible could I have an ASCII dump?

Could we have one with a bit of wind?

I would like to use  this data for off-line training for a NN control to test.

D

### Exact Solution for Quad Copter

This paper provides an exact solution for quad UAV control system.

My belief is the NN solution is far more applicable for actual field usage of larger VTOL UAV with heavy payload in myriad of weather conditions.

Dara

ieee_tcst_2006.pdf

### Remarks on review of NN control for UAV papers

Hello

None of the papers specify the actual input-output for their NN software, which was odd and moreover it seems the claim that the NN usage does NOT use any of the e

### Input output vectors for adaptive learning stabilizer

It would be useful if the arducopter gurus help me to understand the input parameters to NN i.e. the configuration of the copter while in flight, my understanding:

Assumption: desired Roll, Pitch and Yaw to be 0 radians and height H fixed. Not worryin

### NN Software: FANNTool

Hello

I wrote to the developers and they can support cross-compiling into Arduino board, and I believe they rare not compute intensive for our purposes.

100% OPEN SOURCE + GUI visual programming

There are several mo

### carbon fiber tips of legs peel off and break

Hello

In cold weather and hard ground, the tip of the fiber carbon legs peel off at first, and then they break off. I assumed the new legs are made from carbon fiber.

I do not see what purpose these tips serve but make the landing harder on the frame.