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Monthly Archives: February 2012
GIRC Demo
On Saturday I made a brief presentation of GIRC at the monthly meeting of the Seattle Robotics Society. I demonstrated drawing the course and running it, as seen in the video above. Where to now? I want to program with … Continue reading
GIRC Robot Calibration Run
It’s Calibration Run Time here at GIRC Central. First we run GIRC and load in a path file of a square, fifty centimeters on a side, like so: We click Transfer and program the robot, then set it down on … Continue reading
Servo Chatter
When I initialize my robot, the starboard (right-hand) servo chatters at the neutral position. As you can see from the video, for some reason this affects only the starboard servo and not the port (left-hand) servo. I think the reason … Continue reading
Arduino reading screen flashes
I’ve upgraded the hardware to include two LEDs in addition to the phototransistor. Based on the reading of the screen flashes, the LEDs flash according to the key shown. Here’s a video of the system in action: This is at … Continue reading
Adventure in Over-Engineering
To take a break from working on my main project, I decided to do a mini-project. The problem: I keep losing my daily do lists in all the clutter of my life. So I thought, I needed a do list … Continue reading
Arduino Phototransistor Signal Protocol
I’ve designed a signal protocol for the Arduino to convert phototransistor readings from the laptop screen into bytes of data. Here’s what I came up with today: In the illustration, the white boxes in the black strip are light pulses … Continue reading
