About

Gender

Male


About Me:

UAV enthusiasts, but new to the field of flight controllers.


Please tell us a bit about your UAV interest

I am currently invovled in an project where I have to build an radio controllable paramotor and then construct a low cost autopilot for the paramotor.


Activity Feed

Steven Chang posted a discussion
Hi I have an LSM303DLH Magnetometer i got from Sparkfun (http://www.sparkfun.com/products/9810)and my GPS is the FV08 or EB85 by SANJOSEI used the tinygps library for obtaining the GPS dataand I got another library for my magnetometerProblem is when…
Mar 25, 2011
Steven Chang posted a discussion
Hi Does anyone know when the failsafe MUX will be available again?its been on back order for more than 3 weekshttp://store.diydrones.com/product_p/br-0001-10.htm And on the schematic diagram it says TINY85but the store description says Attiny45which…
Feb 13, 2011
Steven Chang replied to Ronald's discussion FailSafe MUX Pins
"Does the onboard uController perform the switching from input A to input B. Or is the uController suppose to use another port on the failsafeMUX board to select which input ports to read from?"
Feb 13, 2011
Steven Chang commented on Chris Anderson's blog post New product in the DIY Drones store: 8-ch PPM encoder
"BTW I know my PPM encoder board does not have the crystal"
Jan 27, 2011
Steven Chang commented on Chris Anderson's blog post New product in the DIY Drones store: 8-ch PPM encoder
"Hi
I've just went through all 8 pages of this topic
I watched the video showing when and when not to blink the blue led too
but I am still confused as to where should I start
I have:
3 servos
A PPM encoder board
How do I knw which resonator mine…"
Jan 27, 2011
Steven Chang replied to Steven Chang's discussion interface Arduino I2C with multiple sensors
"so how will the master distinguish between which slave device it wishes to read from?
I saw a fn from the Arduino Wire library calle Wire.begin(address)
i'm guessing address should contain the address of my magnetometer and altimeter?
if so how do I…"
Jan 24, 2011
Steven Chang commented on Sami Finnila's blog post Paparazzi: The Plug and Play autopilot..?
"Hi 
since I have 2 servo and a motor connected to my receiver
does this mean to connect from my receiver to the PPM encoder
I will need to cut my servo wires to extract the power, gnd and signal?"
Jan 24, 2011
Steven Chang posted a discussion
Hi I am trying to building a flight controller with Arduinofor that, I need a magnetometer and barometric…
Jan 24, 2011
Steven Chang posted a discussion
Hi guysI'm looking at using this HMC5843 magnetometer for my flight controllerHas anyone been having trouble reading the heading angle using this product?http://store.diydrones.com/HMC5843_Triple_Axis_Magnetometer_p/br-hm... are there…
Jan 21, 2011
Steven Chang commented on FAKHRE ALAM's photo
"Hi Fakhre

do u also have the arduino sketch for measuring airspeed?

I'm a bit confused as to why I'm reading 230 from the pressure sensor when
the sensor is stationary."
Jan 20, 2011
Steven Chang replied to Steven Chang's discussion TinyGPS distance calculation
"Short description of  TinyGPS
 
"TinyGPS is designed to provide most of the NMEA GPS functionality I imagine an Arduino user would want – position, date, time, altitude, speed and course – without the large size that seems to accompany similar…"
Jan 4, 2011
Steven Chang posted a discussion
Hi there I have a EB-85 gps connected to an ArduinoI used TinyGPS from http://arduiniana.org/libraries/tinygps/ andwas able to obtain NMEA sentences from my GPSand also display then on the serial monitor of the Arduino IDE I then modified the code…
Jan 4, 2011
Steven Chang commented on Jason Short's photo
"Thanks!
i'll definitely try with Rhino then
unless I can find an already available parafoil soliworks file online
 "
Dec 12, 2010
Steven Chang commented on Jason Short's photo
"Hi jason
 
I need to draw a parafoil which looks like this
Is it possible to draw this using solidworks?
I attached a photo of it

 
As for the lines, I'll only need 4 lines, one from each corner."
Dec 12, 2010
Steven Chang posted a discussion
Hi guysI logged GPS data of the same path way at two different time of a day.Now I'd like to display these two paths on the same Google Earth screen.I already converted both GPS files into KML files Does anyone have experience on this?So something…
Dec 8, 2010
Steven Chang replied to Riccardo Kuebler's discussion GPS NMEA to Kml conversion
"Hi guys

If i have 2 kml files
how do i display path A and path B on the same screen for comparison"
Dec 8, 2010
More…