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Monthly Archives: April 2013
Weighing Robotics
Some weights that are interesting to know. Display has one decimal place, so that 442 = 44.2. The display does have a decimal point, but it doesn’t show at the angle of the photos. Sorry. This is an Uno R3. … Continue reading
Grisbot with Arduino
Here is a preliminary design of a dual tray assembly that can carry both an Arduino and a mini bread board: Here’s an underview, showing how it all fits onto the robot body: As is, the tray assembly can’t be … Continue reading
Metric Blue Assembled
Metric Blue is now assembled sufficiently for operational testing. There was a bit of a tense moment when I discovered that I had connected the 9v battery lead to the voltage regulator’s 5v row, but miraculously nothing got fried. Though … Continue reading
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Micro Servo Gear Pry Tool
In the process of converting a micro servo to continuous rotation, it is necessary to open the housing and pry the gears off the servo base one at a time. However, my fingers are just too big and clumsy to … Continue reading
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Tagged continuous rotation, conversion, micro servo, robotics
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Metric Blue Test Phase
A quick trip to Vetco this morning, and I got some 22uF ceramic capacitors to replace the electrolytics that I was using in Metric Blue’s circuit. The LED blinked on cue. Success! Then the screen read test was getting error … Continue reading
Troubleshooting and Fault Isolation
The freshly-breadboarded circuit for my new robot, Metric Blue, isn’t working. When the switch is flipped, the servos make a little noise for an instant, indicating that power is getting to them. But the LED never blinks the ‘ready’ signal. … Continue reading
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Why Breadboarding is like Hiragana
In the Japanese writing syllabary known as hiragana, stroke order is important to properly compose the characters. Likewise, in building a bread board circuit, it’s important to figure out the order of installing the wires and components. Otherwise you find … Continue reading
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Engineer Zero 