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Tag Archives: robot
Converting a micro servo to continuous rotation
Say you want to build a small robot, but you soon discover that DC motors move too fast and geared DC motors are too expensive. Then you hear about servos. Servos are basically geared DC motors, and microservos seem just … Continue reading
Posted in Uncategorized
Tagged continuous rotation, conversion, micro servo, robot, robotics, servo
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Grisbot: U-Turn Mode
The idea is to once again program the robot by holding it up to the computer screen — but this time by analog rather than digital communications. (I call this U-Turn Mode because of the U on the screen, but … Continue reading
Assembling Goldie the Grisbot
Here are the parts laid out for ‘Goldie’ the Grisbot. I call her Goldie because her acrylic casing will be yellow, and ‘Yellowy’ doesn’t quite work as a name for a vivacious young lady. First step is to place the … Continue reading
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
Mini Grisbot in action
Preliminary test of my robot.
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
Mini gris on a mini breadboard
Here is the wiring diagram for the mini gris mini breadboard. As soon as I post it, I’ll realize there’s something wrong. So we may as well get it over with.
Posted in Uncategorized
Tagged breadboard, grisbot, minigris, robot, robotics, wiring diagram
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Robot assembly order is important
When I attempted to assemble the first laser-cut casing for grisbot, it was a learning experience. In particular I learned that design has to accommodate the assembly process. So that’s what I’m trying to anticipate with minigris. For example, in … Continue reading
Posted in Uncategorized
Tagged assembly process, design process, laser cut, minigris, robot, sketchup
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Mini Grisbot with tabs and slots
Here’s an expanded view of mini grisbot. I tried to learn from previous experience and incorporate design changes accordingly. Indeed, this design is probably going to change as well. Just so we’re clear, minigris is a very small robot:
Mini Grisbot in Sketchup
It’s about three inches long by two and a half wide. Driven by two micro servos, controlled by an Atmega328 microcontroller. I think I’m about ready to put in slots and tabs and take it to the laser cutter.
Engineer Zero 