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Category Archives: Uncategorized
Lessons Learned This Past Week
1. Cut the capacitor leads short so they won’t accidentally touch the photocell leads. 2. Fresh batteries make a big difference. 3. When masking tape is used to mark waypoints, a pipe-cleaner skid is prone to snag. 4. Do not … Continue reading
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Programming the ATTiny45
About a year and a half ago, Matt Richardson did a video on how to ‘shrinkify’ your Arduino projects with the ATTiny chip. It was a very interesting idea that I finally got around to doing on Friday. Here’s what … Continue reading
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Grisbot Hoop Capture Test
I’ve got a bad feeling about this. Before we begin, some brief technical details: The orange pipe cleaner provides friction to compensate for servo swerve. *** The catcher is just a piece of wire. Nobody likes overengineering. *** More equipment … Continue reading
Variations on a brushbot
In my continuing efforts to find a simple product to market, I thought, “Why don’t I make some upgrade mods to the conventional brushbot?” So I ordered a brushbot kit from Maker Shed, and modified as shown. The long green … Continue reading
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
