DIY Drones

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

GSM Cellular phone as telemetry modem

Because they are expensive, and you still have to add an antennae, battery holder, etc ... Just buy a used motorolla c168i cellular phone from ebay. Buy the one which is locked to AT&T for $20 sh…

Tagged: long distance communication, telemetry modem, cellular telephone, cheap wireless, wireless modem

Replied Aug 20

MediaTek MT3329 GPS 10Hz

Where is the documentation to interpret the binary messages the MT3329 is spitting out? The datasheet only includes the NMEA string output - not the 'compressed' binary data output.

Replied Jun 24

Ardupilot Shield V2 schematics?

Is there any specific reason? The eagle files for the Ardupilot are posted, for which this is a shield board. Anywhoo, thanks for replying - I've been lazy, I'll just take out the half hour and make…

Replied Nov. 15, 2009

Ardupilot Shield V2 schematics?

Can I get the eagle files for this. I've asked a few times in a couple of different places ... Is there any issue in posting the eagle schematic and layout? How about the footprint for the pressure s…

Replied Nov. 15, 2009

 

Faisal Shah's Page

Latest Activity

Faisal Shah replied to Rob Jackson's discussion 'GSM Cellular phone as telemetry modem'
Because they are expensive, and you still have to add an antennae, battery holder, etc ... Just buy a used motorolla c168i cellular phone from ebay. Buy the one which is locked to AT&T for $20 shipped, it will be 10 dollars cheaper than the unlocked…
August 20
Faisal Shah commented on bGatti's blog post 'Fareed's Recommended Book - Patent law lead to Innovation, Steam engine, Revolution'
David, It was very concerning of me to read the following: "I also misjudged how much things cost, .... ... I am still going through it, although it is now very possible OpenPilot won't survive long enough for me to learn enough. This would be a s…
August 4
Faisal Shah commented on bGatti's blog post 'Fareed's Recommended Book - Patent law lead to Innovation, Steam engine, Revolution'
David, your contribution to OpenPilot is commendable and the community is in gratitude for your efforts, and the efforts of any and all contributors. But seriously dude, going in debt because of OpenPilot :) ?? Get your priorities straight, take ca…
August 3
Faisal Shah commented on Chris Anderson's blog post 'DIY Drones passes 10,000 members!'
Thanks to those of you, both well-known and behind the scenes, who help make this community as vibrant and helpful it is!
July 7
Faisal Shah commented on jasonshort's blog post 'Ardupilot 2.6 MediaTek Parser'
Thanks for the protocol jason. Two questions: 1) How was the mtk3329 protocol changed? Is there a command to modify the protocol to NMEA string, customized binary, etc ... ? Do you have to have a relationship with MediaTek to do it, or is there a co…
June 29
Faisal Shah commented on jasonshort's blog post 'Ardupilot 2.6 MediaTek Parser'
Is the data format of the 'custom DIY drones' GPS firmware available somewhere? I can infer it from the code, but I would like to see some documentation ...
June 28
Faisal Shah replied to Matthew M's discussion 'MediaTek MT3329 GPS 10Hz'
Where is the documentation to interpret the binary messages the MT3329 is spitting out? The datasheet only includes the NMEA string output - not the 'compressed' binary data output.
June 24
Faisal Shah commented on Michael Zaffuto's blog post 'OMG!! Invensense ITG-3200, World’s First Digital 3-axis Gyro AVAILABLE!!'
Jordi: Strap it onto a plank of wood with a motor and dump the data here please :)
April 1
Recmaster commented on Faisal Shah's blog post 'Closed loop autopilot simulation with FlightGear - Part 2'
Hi Faisal, is it possible to load a firmware ArduIMU code to your's udpserver? Otherwise I dont understend how it could help to make a openloop emulations.
March 31
Lorentz commented on Faisal Shah's blog post '$69 1000mW FHSS Transceiver (900MHz)'
Bill, assuming with "hex" you meant hexadecimal value, what exactly confuses you ? How to send an hex value over serial ? How to convert an image to hex values and send it through serial ? Regards
March 1
Bill Eason commented on Faisal Shah's blog post '$69 1000mW FHSS Transceiver (900MHz)'
How do you send it the hex packets via serial. I'm confused, and need to know how to configure it.
February 28
Faisal Shah commented on Ryan Beall's blog post 'Position & Wind Extended Kalman'
Pete: I also went thru it rather quickly (at work .. bleh). One issue I saw with the MRAC scheme was that there is no guarantee of converging to a particular solution, rather - the the error is guaranteed to converge to zero. Perhaps this is the sou…
February 9
Faisal Shah commented on Ryan Beall's blog post 'Position & Wind Extended Kalman'
Ryan, thanks a bunch! Soooo .... anyone wanna implement MRAC D or L1 and try it out? Source code is given! I've been thinking about something like this for a while, some way to parameterize an airframe's dynamic response, and an adaptive way to lear…
February 9
Faisal Shah commented on Radoslaw Kornicki's blog post 'All in one UAV controller board'
What processor do you plan on using in the future? I am looking for a processor which has maximum native PWM capability. I haven't been able to find any processors which had that, and all the other connectivity options I would like - so I've been co…
January 24
Faisal Shah commented on Jonathan Lussier's blog post 'XDuino - 32Bit ARM-7 Cortex-M3 MCU with Arduino-compatible syntax and similar IDE'
Leaf labs is something to check out for those interested: http://blogs.leaflabs.com/2009/08/maple-prototype/
January 21
Faisal Shah commented on Tim Trueman's blog post 'Podcast Episode 14 - Henri Seydoux, CEO of Parrot (makers of the AR.Drone)'
Could this be the epson gyro which Henri is referring to? Chris, can you take a look at the pcb and confirm? The applications for this gyro include image stabilization ... Epson XV-3500CB http://www.eea.epson.com/portal/pls/portal/docs/1/424992.PDF
January 21

Faisal Shah's Blog

Faisal Shah

$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 Stream… Continue

Posted on January 8, 2010 at 1:29pm — 14 Comments

Faisal Shah

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




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… Continue

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

Faisal Shah

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.
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 tree viewer will pop up and y… Continue

Posted on October 25, 2009 at 11:02pm — 3 Comments

Faisal Shah

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 accelerometer, G… Continue

Posted on October 19, 2009 at 10:30pm — 2 Comments

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