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You probably know that if you spin a motor (mechanically) it generates electricity on what would normally be the inputs. This can be a problem when you shut off a spinning motor and is the reason that protection diodes are built into motor driver circuits. But [Dino] isn’t interested in driving a motor, he wanted [...]

Tags:  electricity motor stepper dino driver-circuits stepper-motor diodes classic hacks  

[Arshad Pathan] let us know about his latest project, a modular code lock that can be adapted to many different situations. The user interface is made up of a character LCD screen and a 3×4 keypad. For this example [Arshad] is using a stepper motor as the locking mechanism. When the board is first powered [...]

Tags:  arshad lock full featured-security character-lcd stepper-motor microcontrollers  

Here’s a couple of clocks that use Arduino boards to control inexpensive clockworks. The concept is quite simple, and perhaps best outlined by [Matt Mets'] article on the subject. As it turns out, these clockworks are driven by a coil, forming a device that is quite similar to a stepper motor. If you solder a [...]

Tags:  arduino subject article matt clockworks stepper-motor mets hacks  

[Mike Rankin] built a small CNC machine using some PC parts. He repurposed two optical drives and a floppy drive to create the plotter seen drawing the Hackaday logo above. The X and Y axes use the stepper motor controlled read heads from two optical drives. The Z axis is built using the read head [...]

Tags:  machine drive cnc mike-rankin stepper-motor optical-drives hacks  

[Daqq's] latest creation is this little robot with a CRT mounted on the front. Obviously ‘why?’ is the wrong question here, but we know this is right up his alley considering his propensity for the less common like this plasma ball Nixie tube. The solidly-built bot uses two stepper motor controlled wheels and an omni-wheel [...]

Tags:  cathode bot tube cathode-ray-tube stepper-motor plasma-ball robots hacks  

[Stefan] sent in this project writeup to show us how he used a stepper motor as a rotary encoder. Using a stepper motor as an encoder isn’t really that new, as [Stefan] points out, we’ve seen it several times before. He wanted to use this in the quickest simplest way with his computer though. Instead [...]

Tags:  encoder motor stepper stefan rotary-encoder stepper-motor soundcard peripherals hacks