"Remind me -- did you calibrate the compass? At least for hard iron offset?
If not, nothing will work."
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Brett Smith
- Male
- Pleasanton, CA
- United States
- Blog Posts (1)
- Discussions (33)
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Brett Smith's Discussions
LSM303DLHC Magnetometer Help! POLOLU IMU
Started this discussion. Last reply by Bot Thoughts on Friday. 2 Replies 0 Likes
Hello All,I have been working on an propeller based autopilot for a while now, and things have been coming along great. Although I was nervous about the lack of interrupts, the faster speed and…Continue
Tags: propeller, parallax, DCM, LSM303DLHC, IMU
Sensor Noise
Started this discussion. Last reply by Jano A Oliveira Feb 4. 2 Replies 0 Likes
Hello All,I am working on my first drone, using an E-Flite UltraStick. So far the build has been going well. I developed a system for switching between radio and arduino control. I am working on…Continue
Sensor Noise
Started Jul 21, 2012 0 Replies 0 Likes
Hello All,I am working on my first drone, using an E-Flite UltraStick. So far the build has been going well. I developed a system for switching between radio and arduino control. I am working on…Continue
Sensor Noise
Started Jul 21, 2012 0 Replies 0 Likes
Hello All,I am working on my first drone, using an E-Flite UltraStick. So far the build has been going well. I developed a system for switching between radio and arduino control. I am working on…Continue
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Latest Activity
Brett Smith replied to Brett Smith's discussion LSM303DLHC Magnetometer Help! POLOLU IMU"A little more info here :
http://forums.parallax.com/showthread.php/148049-LSM303DLHC-Tilt-Compensated-Compass-Help"
Brett Smith posted a discussionLSM303DLHC Magnetometer Help! POLOLU IMU
Hello All,I have been working on an propeller based autopilot for a while now, and things have been coming along great. Although I was nervous about the lack of interrupts, the faster speed and multiple cogs have made timing the program efficient. I purchased the Pololu brand IMU v2 for $50, and my only complaint might be that the board is TOO small. I am implementing a complementary filter to filter all vibration noise, and it seems to be working just fine. I am able to set the attitude of the…See More
Jano A Oliveira replied to Brett Smith's discussion Sensor Noise"Hello Brett,
I'm working on an overwhelming project also, right now all my time is being divided between work and studying this project.
I saw you're using a MPU-3050 Gyro and I'm having the hardest time finding a good working arduino…"
Brett Smith replied to Rahul Vyas's discussion Need urgent help guys please."Awesome. That is a good way to start. Post your code as you encounter problems"
Brett Smith posted a status"Massimo Banzi mentions DIY Drones in a TED Talks.
http://blog.makezine.com/2012/06/27/arduinos-massimo-banzis-ted-talk/"
Brett Smith replied to Rahul Vyas's discussion Need urgent help guys please."If you go to my instructables page, I explain how to run a brushless motor motor with an arduino.
The controller looks at the angle the arm is hanging at using our accelerometer and gyroscope, and uses that data to determine how much current to…"
Brett Smith replied to Paul Triantafyllou's discussion How Can I Remove Vibration Noise From My Accelerometer?"void loop(){Accel(); float pitch = real_x; //should converts accelerometer 8 bit to degrees pitch *= .0078; //i don't know where i got all these constants pitch *= .5; // this may be because i am running it…"
Brett Smith replied to Rahul Vyas's discussion Need urgent help guys please."Start building up your code! I would start testing your electronics on a breadboard.
Make sure you can provide all sensor data to the arduino mini pro. Make sure you can use your arduino to arm all ESCs and to control the speed of all four motors.…"
Brett Smith replied to Paul Triantafyllou's discussion How Can I Remove Vibration Noise From My Accelerometer?"I tried to get a grasp of the Kalman filter, but it quickly became too complicated. I looked into a DCM; it seems doable on an arduino board, but I still don't have my head around it.
Good news is: I set up a very basic complementary filter…"
Brett Smith replied to Dronez's discussion 6-7 Hour Flight time over ocean - some questions"True. If your only looking looking for a 6-7 hour flght (still very long) you could probably loose some of the gas tank in order to free up space for cameras gimbles and other bells and whistles. I guess the TAM proves that extremely long sustained…"
Brett Smith replied to Dronez's discussion 6-7 Hour Flight time over ocean - some questions"Well, obviously the TAM could handle the wind.
I assume a good comparison would be regular RC model aircraft. They can fly in the wind, but is not ideal. Obviously, wind will knock around the plane, but the PID should be able to…"
Brett Smith replied to Dronez's discussion 6-7 Hour Flight time over ocean - some questions"The dynaflite has the same wing loading as a thermal airplane before adding any of our autopilot electronics/extra gas tank. It is only three channels - throttle, rudder, elevator. You could modify it with ailerons. I guess you only really need one…"
Brett Smith replied to Dronez's discussion 6-7 Hour Flight time over ocean - some questions"If you are looking for endurance flight of an automated model aircraft, you absolutely should check out Maynard Hill's TAM 5. The TAM 5 crossed the Atlantic ocean in over 38 hours with about a gallon of fuel. They used a OS .61 retrofitted…"
Brett Smith replied to Paul Triantafyllou's discussion How Can I Remove Vibration Noise From My Accelerometer?"Did you ever find a solution to this?? I am in a similar situation. I am trying to set up a drone on a Eflite UltraStick, and I am experiencing WAY too much mechanical interference. I am just looking into the Kalman Filter for the first time. Did…"
Profile Information
- About Me:
- I am studying to become a mechatronic engineer at Chico State.
- Tell us a bit about your UAV interest
- My father and I fly rc. This winter I picked up my first Arduino microcontroller and took my first c/c++ course. I am trying to make the transition to autonomous flight, and I am currently working my first PID controller using I2C sensors and a brushless motor to hold a swinging arm level.
- Hometown:
- Pleasanton
Brett Smith's Blog
The creator of Arduino gives a TED Talks and references DIY Drones
Posted on August 5, 2012 at 5:30pm 0 Comments 6 Likes
Comment Wall (1 comment)
- At 2:27pm on July 19, 2012, Bob Jones said…
Hi Brett
Sorry but one of the Aeroquad guys snatched everything up.
Sorry.
Regards Bob.
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