Da Vinci 1.1 Cartridge Touch screen programmer

thingiverse

I further developed existing online code for easy programming of an EEPROM from a cartridge via a touchscreen interface. The touchscreen shield, purchased from eBay and featuring the SPFD5408 chip, was integrated into the system. I've included the necessary Arduino code and libraries in the package. To replicate this setup, you will need: An Arduino Uno A 2.4-inch touchscreen shield with an SPFD5408 chip A spare EEPROM chip from a cartridge A DPDT switch like the one shown in the illustration Wire and a soldering iron for connections Here's how I installed it: I removed the back panel, routed 5V power cables (positive and negative) to where the programmer would be installed, and connected them to power the Arduino. The negative lead was wired through the DPDT switch so that the Arduino is powered only when the EEPROM is connected. Next, three wires were carefully soldered to the point where the EEPROM cartridge is read (positive/signal/negative). The positive and negative leads were attached directly to the spare EEPROM housed with the touchscreen, while the signal wire was connected to the DPDT switch. Pin 4 on the Arduino was then wired to the DPDT switch, and finally, the center position of the DPDT switch was soldered to the EEPROM. This setup allows the DPDT switch to toggle between Connected/Off/Ardunio modes for the EEPROM.