USBHostExternalLampField

This sketch uses the Gravitech USB Host 4 Nano Shield and an Arduino Nano to drive a charlieplexed external lamp field, flash enigma encoded Morse code and control a thermal printer

main file is: USBHostExternalLampField.ino

Hardware used:

USBHOST add-on for Arduino Nano: http://www.gravitech.us/usadforarna.html Using a soldering iron, bridge the VIN, INT and GPS solder pads. Connect a 9V battery to the screw terminals in the shield, this will also power the USB port and any attached devices.

Arduino Nano: http://www.gravitech.us/arna30wiatp.html

Demo video: https://www.instagram.com/p/BXVK_BChVLh/