PWM, DAC, and timers on the ATtiny
miniMO’s brain is an Atmel AVR ATtiny85. This guide explains how to use ATtiny’s timers to create a train of pulses of variable width, itself translated into sound via a digital-to-analog converter.
Mk2 Assembly Gallery
When I built the Mk2 version last December, I took pictures to document the process. This model is now obsolete, but I think the pictures are still interesting, not only because they show how I built it, but also because they make clear some of the reasons why I decided to change the design. Enjoy!More…
Breadboard Mk3 WIP
Today I started revising the breadboarded miniMO. I wanted to bring the printed model as much in line as possible with the PCB version, whilst emphasizing the different approach; my goals were to fit all the components of the latest design on the custom board, and to keep soldering to a minimum. More…