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Tag Archives: robotics
Servo Center Location Test
It looks like the climactic scene in a monster movie, Arduino vs. Bot. In reality, this setup enables me to keep the ATMega328 chip on the Arduino while I upload test programs to locate the servo centers. According to the … Continue reading
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Tagged arduino, atmega328, micro servo, minigris, robotics, servo
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Minigris test matrix demo
This demo shows that the mini grisbot (graphical robotic information system) test matrix has been successfully completed, with photocells and servos functioning and integrated. (And special thanks to Adafruit for the link yesterday.)
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Tagged arduino, atmega328, mini grisbot, robotics, test matrix
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Minigris test matrix
Since minigris did not perform as hoped, I’ve had to go back to basics and rebuild the circuit, testing at each stage. Hence a test matrix, where I build the circuit with a component added, write a test program, test … Continue reading
Minigris wiring revisions
Well, I did notice that the servos were going to nine volts rather than five on yesterday’s schematic, so I fixed that. Also deleted the connection to AREF per this. But I couldn’t even get the LED to light up … 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.
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Tagged breadboard, grisbot, minigris, robot, robotics, wiring diagram
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Minigris Assembly Begins
I went to Metrix this afternoon (Thursday) and got the acrylic cut, and then I rushed home and attempted to assemble the robot. Here are the pieces with the protective wrapping still on them: Ten minutes later, I’m still peeling … Continue reading
Grisbot test rig
When I finished assembling this test rig on late Tuesday night, I sat back and stared and realized that maybe I’ve actually accomplished something. Such a weird feeling! The test rig is mounted on a small kitchen chopping board that … Continue reading
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:
Metrix Robot
This is the robot that I learned how to make at Metrix Create Space during the robotics class on September 30. It uses an ATTiny microcontroller and Tower Pro microservos. We learned how to convert the servos from fixed to … Continue reading
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Tagged ATTiny, Metrix, Metrix Create Space, microservo, robot, robotics
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Dual Sensor Mode in Processing
Here is GRIS in Processing, revised to accommodate dual sensor mode communications between the computer and robot. The square on the left flashes data, while the square on the right flashes the clock signal. Each data bit lasts two frames. … Continue reading
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Tagged gris, processing, robotics, sensor, serial communications
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Engineer Zero 