Andre van calster's Blog (11)

Adaptation of a ArduPilot Rover to an autonomous DonkeyCar

This video illustrates the adaptation of a ArduPilot Rover to the Artificial Intelligence DonkeyCar environment. This includes the adding-editing of 5 files of the DonkeyCar library. A linear AI model trained by behavioral cloning resulted in a satisfactory autonomous test drive.

Added by andre van calster on December 19, 2019 at 11:01am — 4 Comments

improved inference speed on rpi3 using Intel's NCS1

By using Intels OpenVINO and neural computing stick (NCS1) the inference speed of my neural network is increased from 5 frames per second (fps) to 20 using a RPI3. This enabled a far better obstacle avoidance performance of my drone. More info at

Added by andre van calster on October 13, 2019 at 4:52am — 5 Comments

VTOL testflight

Simple testflight of my E-Flite Convergence equipped with a pixracer flight controller complemented with a "sbus to pwm" home-made circuit to extend the number of servo outputs. Flight stack: Ardupilot Quadplane; Flight mode: loiter.

Added by andre van calster on July 2, 2019 at 9:00am — No Comments

Convolutional Neural Network (2) for advoiding obstacles

By changing the CNN of my previous post CNN (1) into a multi-classification CNN (fly, go left, go right, stop) and adding an appropriate multi-thread python dronekit script, my drone…


Added by andre van calster on July 31, 2018 at 12:49am — 1 Comment

obstacle avoidance using a convolution neural network

Recently I started working on convolutional neural networks (cnn) for obstacle avoidance. With the help of "DroNet" from ETH Zurich and the "Deep Learning for Computer Vision" book from Adrian Rosebrock, I managed to build my first cnn algorithm for obstacle avoidance. The cnn module is written in python, using a keras…


Added by andre van calster on March 12, 2018 at 5:30am — 16 Comments

My XJ470 rebuilt

best viewed with 720p HD settings

This winter I rebuilt my XJ470: added a PiZero with a Picam. This PiZero functions as a companion computer with a python dronekit and a WiFi access point enabling a mavlinkbridge. Hence an android tablet, running Tower, can be connected to this WiFi access point for…


Added by andre van calster on April 17, 2017 at 1:40pm — 4 Comments

testflight xj470

For bench marking my own developed flight controller, I built a Quanum XJ470 drone with a DroPix (Arducopter/PixHawk) flight controller. Some additional features: esc AFRO 30A; motors: SunnySky 980 KV; props 10 x 4.5. My first testflight shows that the drone with the DroPix flies great.

Added by andre van calster on September 12, 2015 at 2:42am — 2 Comments

comment on complementary filtering

Complementary filters enable sensor fusion, are easy to implement and eliminate integrating errors from gyro’s or accelerometers. Normally complementary filters are discussed in the frequency domain.  Using simple Python code a 1st order linear complementary filter for determining the quadcopter ground speed was analyzed in the time domain. The results are…


Added by andre van calster on May 6, 2015 at 9:10am — 2 Comments

FPV testflight 3D printed crossfire

I upgraded my 3D printed crossfire with a Boscam transmitter TS351 and a all-in-one monitor RX-LCD5802. The FPV camera is a GoPro Hero 3. Simultaneously a Sparkfun GPS LS23060 was added. This implied adding code for reading, parsing and processing nmea data. I have chosen a complementary filter approach for fusion of accelerometer data and GPS data. I managed to…


Added by andre van calster on January 7, 2015 at 8:41am — 1 Comment

Test-flights of my 3D printed quadcopters

After tuning my PID parameters for both my 3D printed quadcopters crossfire and miniflame, I succeeded in having some decent test-flights. The flight controller used is an own built controller inspired by KK2, AeroQuad and ArduCopter. Future development: including a GPS module.

Added by andre van calster on October 6, 2014 at 3:38am — No Comments

2nd (3d printed) quadcopter

Having a background in electronics I wanted to build my own flightcontroller. At the same time I decided to build a new quadcopter. Having bought a 3d printer from Ultimaker, I printed a quadcopter frame inspired on the original Crossfire design from MickeyB (thingiverse).



Added by andre van calster on May 18, 2014 at 7:36am — 4 Comments


Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

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