Blogroll
-
Recent Posts
Archives
- July 2025
- March 2025
- February 2025
- January 2025
- December 2024
- July 2023
- March 2023
- February 2023
- November 2022
- September 2022
- August 2022
- April 2021
- July 2018
- June 2018
- May 2018
- December 2017
- September 2017
- August 2017
- February 2017
- June 2016
- May 2015
- April 2015
- March 2015
- December 2014
- October 2014
- September 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
Meta
Tag Archives: robotics
Using LEDs as Test Servos
I fully intended that I would complete all software testing before I removed the ATMega chip from the Arduino even once. However, as I test the software, I’ve had to swap out the ATMega chip from the robot back to … Continue reading
Programming the servo calibration procedure
Sub program, sub routine, function, procedure — it seems like every programming language has a different name for ‘blocks of code.’ Well, now I need to write a block of code for the servo calibration procedure. So first I drafted … Continue reading
Posted in Uncategorized
Tagged arduino, programming, robotics, servo calibration, wiring
Leave a comment
Grisbot Bill of Materials
How much do the materials of the robot cost? Costs not included: laser cutting service, switch, labor for servo conversion and pre-soldering (if any), hardware (ie bolts and nuts).
Mini gris servo calibration mode
The robot ‘brain’ (aka ATMega328) needs to know how long the servos must rotate in order to properly execute moves and turns. Hence there must be a servo timing calibration mode, and a way to initiate the mode. I’ve toyed … Continue reading
More surgery on a servo
No, it didn’t crash. I had to disassemble mini grisbot in order to perform surgery on the right servo, whose centering had drifted so much that the wheel could not turn forward. To keep the potentiometer shaft from twisting (thereby … Continue reading
Mini Grisbot in action
Preliminary test of my robot.
Mini grisbot test status
I have completed screen-to-photocell calibration and control code transfer. Mini grisbot passes both with flying (or at least hopping and skipping) colors. The remaining test phase is to calibrate the servo timings to execute the path as shown on the … Continue reading
2013: Year of the Raspberry Robot
My interest in the Raspberry Pi concerns its use as robot brains. I made the above chart to help me better understand where the Raspberry Robotics development process is heading. I’ll need an IDE on my laptop/desktop which can transfer … Continue reading
Robot Sentry Duty
Obviously, there’s going to be course error buildup. I don’t think encoders would help that much. I’m thinking of navigation beacons, like so: (Maybe infrared? Hmm . . . . )
Surgery on a servo
Servo drift occurs when the potentiometer shaft (the one on the left in the photo) turns from the centered position (ie 90 degrees). I tried to prevent servo drift by soldering the pot shaft in place, but apparently all I … Continue reading
Engineer Zero 