I’ve recently been working on a Schwinn s500 electric scooter that I’ve upgraded to LiPo power, on the stock controller and motor.  Going forward, I’ll be swapping in a brushless motor and controller, with a projected power output around 4hp.  To that end, I have to figure out a way to convert my existing hall-effect [...]

Dave K and I are working on a project down at the Makery that requires direct programming of an ATTiny85; Dave ordered the USB ISP programmer for it, but was using a protoboard monstrosity to get it hooked up to the MCU Since he’s doing me a favor flashing chips for “my” project, he ask [...]

When the Louisville hackerspace LVL1 was discussing the purchase of a new laser cutter, a member said, “I could build one before you get around to buying one.”  The gauntlet was thrown down, a challenge was set, and the race was on to build a tin…

When the Louisville hackerspace LVL1 was discussing the purchase of a new laser cutter, a member said, “I could build one before you get around to buying one.”  The gauntlet was thrown down, a challenge was set, and the race was on to build a tin…

An semi-automatic guitar plays "Twinkle Twinkle, Little Star", with a bit of human help. Version 2 will be able to play all on its own.

Tonight, I did some prep work on a new EasyDriver (on breadboard) that I ordered for an upcoming project. I mounted a 4-pin Molex Floppy connector for the motor output, and pin-headers reversed for breadboard mounting. I also milled the gear off of a scrap stepper motor and built a coupler to a fancy leadscrew I [...]

Shown uppermost is the first prototype of a handheld artillery spotting device developed as a student capstone project at West Point. The blue board to upper left is pretty clearly an Arduino Mega. You can see, in the near upper corner of that boa…

This is an example of the progress that Brandon's made on the robotic arm axis