This ATmega48 based project involves implementing a low-cost, high-performance bipolar stepper motor driver. The driver is designed for retrofitting a piece of equipment for CNC operation with inexpensive interpreter programs. For example this board was used to control a milling machine.
Microstepping Bipolar Stepper Motor Driver: [Via] - [Download Project] - [View Project PDF]
POV is a really cool concept, similar to the way a television works, an image or series of colors is spewed out and ‘blend’ together because the light pulses occur at a speed faster than our eyes can properly observe. thus like a camera with a long exposure, we see a blur and this blur can be made directly into an image of your choosing.
DIY POV(Persistence of Vision): [Link]
This digital dashboard powered by an ATmega48 microcontroller, can be integrated as described in this project into an old tractor, displaying on the LCD screen important info like RPM, Oil temperature or battery voltage.
Add a digital dashboard to an old tractor: [Download Project] - [View Project PDF]