Bot Thoughts
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Bot Thoughts's Discussions

3DR LEA-6 GPS, loses fix w/ mbed connected

Started May 16, 2013 0 Replies

I have a 3DR LEA-6-H board losing fix under certain conditions.If I connect to it via FTDI breakout (5V), it easily gets a fix, 8 satellites in the basement. Likewise, when running driver code on an…Continue

Tags: rfi, ublox

For Sale: CHR-6DM AHRS - 300Hz EKF, ARM

Started Apr 4, 2012 0 Replies

I have a CH Robotics 6dm AHRS for sale. Briefly used on a ground vehicle a few…Continue

Tags: chr-6dm, imu, ahrs

Magnetometer Soft- and Hard-Iron Calibration

Started this discussion. Last reply by Yury Matselenak Jun 5. 24 Replies

I'm using an LSM303DLM on a Pololu MinIMU-9 board as part of an AHRS. The software is ported to mbed from Pololu's example code which is in turn ported from ArduPilot 1.5. But that's no what this is…Continue

Tags: compass, hard-iron, soft-iron, calibration, magnetometer

Data Bus: autonomous ground vehicle

Started Oct 8, 2011 0 Replies

Data Bus was my Sparkfun AVC 2011 ground vehicle entry. Its based around…Continue

Tags: ugv

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Bot Thoughts's Page

Latest Activity

ElecFreaks Technology Ltd commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
Nov 13

Developer
Bill Bonney commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"Maybe we can do some DIY Gesture Control of a drone like this device https://www.thalmic.com/en/myo/"
Nov 6
Gary McCray commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"Really happy to see they made it, more than half in the last 3 days, fantastic."
Nov 6
Phill Scott commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"They got funded, so we'll have the opportunity to find out what we can do with this."
Nov 6

Developer
Bill Bonney commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"The biggest challenge with using this is the data rate over the Bluetooth LE connection. The theoretical maximum is 300Kb/s. But on smartphones BLE tends to timeshare the 2.4GHz radio TX period, so you have for example on iOS, 50kb/s max. This is…"
Nov 4

3D Robotics
Chris Anderson commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"Looks good. I've backed it."
Nov 3
Phill Scott commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"Well, I've backed it - we'll see."
Nov 3
naish88 commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"Great little device, unfortunately they set their goal to high."
Nov 3
Bot Thoughts commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"@Gary, yeah right there with you. I really want to play around with it. Well, hopefully somehow there will be a surge of interest in the final days. Who can say? :)"
Nov 3
Gary McCray commented on Bot Thoughts's blog post IMUduino - 10DoF over Bluetooth Low Energy - 3 days left
"This could be a very useful little device, it is really too bad it's funding has so little time left. With a bit more time and promotion it could probably have made it. Best regards, Gary"
Nov 3
Bot Thoughts posted a blog post

IMUduino - 10DoF over Bluetooth Low Energy - 3 days left

IMUdino on Kickstarter -- a really tiny 10DOF IMU with Bluetooth. It was covered by Atmel blog.The Kickstarter has 3 days left.Surely there are UAV / Rover…See More
Nov 3
Bot Thoughts replied to Gary McCray's discussion Need RC PWM signal to 0-5 volts for my robot. in the group ArduRover User Group
"If you want tips on how to get an Arduino to read Servo RC, you could look at our Jeep Rover Project's homebrew steering servo code: https://github.com/shimniok/diyrovers/tree/master/JeepServo"
Aug 22
Bot Thoughts commented on Thomas J Coyle III's group ArduRover User Group
"For what it's worth -- @Tom, @RoboBill -- our team, SHARC, was also using a Hemisphere industrial grade GPS on our robot "Troubled Child," possibly the same model (an A100) as 0x27 was the prior two years. I think we can safely say…"
Jun 23
Yury Matselenak replied to Bot Thoughts's discussion Magnetometer Soft- and Hard-Iron Calibration
"Here is the results of the calibration with using my program. Calibrated magnetometer data: "
Jun 5
Yury Matselenak replied to Bot Thoughts's discussion Magnetometer Soft- and Hard-Iron Calibration
"See my version of the soft and hard iron magnetometer calibration: http://diydrones.com/profiles/blogs/advanced-hard-and-soft-iron-magnetometer-calibration-for-dummies"
Jun 4
Bot Thoughts replied to Thomas J Coyle III's discussion Waterproofing your chassis for the AVC in the group ArduRover User Group
"While there's no way to spot a false trigger with only one trigger, I think the point RoboBill was making was that one could use multiple samples to eliminate false positives. Various filtering approaches could do it. Maybe a median filter. Or…"
Jun 1

Profile Information

About Me:
I'm a nerd and as such, I'm interested in robotics, electronics, information security, photography and Full Size Jeeps.
Please tell us a bit about your UAV interest
Primarily kindled by the Sparkfun AVC. I entered a ground vehicle in 2011 but was curious to play with UAVs.
Hometown:
Centennial, CO

Bot Thoughts's Blog

IMUduino - 10DoF over Bluetooth Low Energy - 3 days left

Posted on November 3, 2014 at 3:26pm 10 Comments

IMUdino on Kickstarter -- a really tiny 10DOF IMU with Bluetooth. It was covered by Atmel blog.

The Kickstarter has 3 days…

Continue

Give All the Robots Eyes to See! OpenMV.

Posted on February 17, 2014 at 9:17am 12 Comments

The OpenMV camera module will be the lowest cost, most hackable machine vision platform out there, because Ibrahim,…

Continue

Tindie Cyber Monday Sale

Posted on December 2, 2013 at 1:43pm 0 Comments

RoverMux R/C multiplexer is on sale for only $6 (buy here, coupon code EB024FC) on Tindie

There are 100+ additional items from many other makers on sale at Tinde today.…

Continue

3CH RC (Servo) Multiplexer for Robot Rover - on Tindie

Posted on August 27, 2013 at 9:00am 1 Comment

Anyone else building an autonomous rover perhaps for Robomagellan or Sparkfun AVC? Do you have a multiplexer on your one-off, scratch built autopilot solution? If not, I built something just for us. :)

Picture your robot driving right at a curb or a wall. No problem, just take over with an RC multiplexer installed. It's…

Continue

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