Faisal Shah
  • Male
  • Houston, TX
  • United States
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Faisal Shah's Discussions

SCXL004DN Differential pressure sensor (0 to 4in H20)

Started this discussion. Last reply by Doug Weibel Nov 20, 2009. 2 Replies

This is super expensive on DigiKey ($85), but it is being sold on electronic goldmine for cheap! $8.95!!)…Continue

Interfacing 5V sensor with 3.3V uC

Started this discussion. Last reply by jstoezel Nov 25, 2009. 12 Replies

I'm considering using the MPX4115 absolute pressure sensor for altitude, and the MPXV5004DP differential sensor for speed. These are both 5V parts, and my microcontroller is 3.3V. What would be the…Continue

How many switches/pushbuttons/LEDs to use, and for what

Started this discussion. Last reply by Jake Brown Nov 13, 2014. 5 Replies

I'm putting together schematics for my YADIYA board (…Continue

Gyro Vibration Immunity: Differential gyro's

Started this discussion. Last reply by Heinrich Mueller Dec 14, 2009. 1 Reply

For those of you who have read the comments in my other thread: http://www.diydrones.com/forum/topics/yadiya-yet-another-diy…Continue

 

Faisal Shah's Page

Faisal Shah's Blog

$69 1000mW FHSS Transceiver (900MHz)

Posted on January 8, 2010 at 2:29pm 15 Comments



* 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

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

Posted on October 28, 2009 at 11:02am 4 Comments



http://www.chrobotics.com/CHR6d.php



FEATURES



* 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

Closed loop autopilot simulation with FlightGear - Part 2

Posted on October 25, 2009 at 11:02pm 5 Comments

Figured out how to close the loop!



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

http://wiki.flightgear.org/index.php/Property_Tree



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

Closed loop autopilot simulation with FlightGear - Part 1

Posted on October 19, 2009 at 10:30pm 3 Comments

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

Comment Wall (1 comment)

At 9:24pm on January 23, 2011, mahmood said…

Faisal Could you do a video tutorial of the closed loop autopilot simulation with flight gear

, for those of us who dont get the code aspects, that would really help.

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