Programmable Pre-soak time, wait time, and brew time
Controllable from web browser, tablet or phone on WiFi network
Schedule allows programmable on / off timing for each day of the week
LCD readout for system status, toggle buttons for operation
Smart Connect for easy setup to your WiFi network
iSPRESSO is an appliance modification comprised of Raspberry Pi computer, solid state relays, temp sensor, buttons and a display, a custom Printed Circuit Board, and custom linux shell scripts and a good bit of python code. The instructions to build, including source code, is available on this site.