TrackDuino

Arduino Nano R3

Arduino IDE

<p > TrackDuino: A track display for a 1541 floppy drive. </p><h3 >Necessary Hardware:</h3><ul ><li >An old 1541 or 1541-II Floppy Drive</li></ul><ul ><li >An Arduino Nano [3€]</li></ul><ul ><li >A TM1637 display (4x 7 segment) [1€]</li></ul><ul ><li >A bundle jumper-wire [1€]</li></ul><h3 >Nessecary Software:</h3><ul ><li >Arduino Workbench</li></ul><ul ><li ><span >Arduino Lib: digitalWriteFast</span><a href="https://github.com/NicksonYap/digitalWriteFast">https://github.com/NicksonYap/digitalWriteFast</a></li></ul><ul ><li >Arduino Lib: TimerOne</li></ul><h3 >What TrackDuino Can Do: </h3><ul ><li >Display the current track</li></ul><ul ><li >Work as an I2C slave device sending the current track</li></ul><h3 >How It Works:</h3><p >After reset the current track is unknown.</p><p >If floppy drive starts, the Arduino starts reading data from inserted floppy disk. It simply reads the data from internal IO device via 6522. Each track contains some data sectors, and each sector has an sector-header. The sector-header contains information about the current track# and sector# and some others.</p><p >As soon the track number is extracted from sector data it display the track number (or offers it as I2C slave). Now it is easy to track the change of track by reading the data for the stepper motor.</p>

TrackDuino

Track display for a Commodore 1541 floppy drive (retro hardware).