Faisal Shah's Blog (4)

$69 1000mW FHSS Transceiver (900MHz)

* 900 MHz Frequency Hopping Spread Spectrum Transceiver

* Point-to-Point and Point-to-Multipoint Network Topologies

* Transmitter Power Configurable from 1 mW to 1 W

* RF Data Rate Configurable from 38.4 to 500 kb/s

* Serial Port Rate up to 460.8 kb/s for Streaming Applications

* 128-Bit AES Encryption

* Separate Serial Port for Diagnostics

* Analog and Digital I/O for Sensor Applications

*… Continue

Added by Faisal Shah on January 8, 2010 at 2:29pm — 15 Comments

CHR-6d Inertial Measurement Unit (6DOF) - with



* IMU weighs less than 1.5 grams

* .8" x .7" footprint

* Customizable FIR digital filter

* TTL UART communication interface

* 16-bit ADC resolution

* +/- 400 deg/s gyro dynamic range

* +/- 3 g accelerometer dynamic range

Sophisticated onboard… Continue

Added by Faisal Shah on October 28, 2009 at 11:02am — 4 Comments

Closed loop autopilot simulation with FlightGear - Part 2

Figured out how to close the loop!

Programs can interface with FlightGear through FlightGear's property tree. Very powerful.


If you run FlightGear with the --httpd= option, it will run a webserver on http://localhost: where you can browse the property tree and refresh the current values. Alternatively, in FlightGear you can type "/", and the property… Continue

Added by Faisal Shah on October 25, 2009 at 11:02pm — 5 Comments

Closed loop autopilot simulation with FlightGear - Part 1

I don't have the cash right now to buy a plane, ArduIMU, an auto pilot, and associated hardware. So, while I'm saving for the hardware, I want to play with the various algorithms out there in a simulation environment - to gain a deeper understanding and feel for it. I want to be able to code in C, so I can use the code directly in the hardware autopilot when I reach that point.

I want to use a flight dynamics model to generate sensor inputs to the autopilot (3 axis gyro, 3 axis… Continue

Added by Faisal Shah on October 19, 2009 at 10:30pm — 3 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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