Medallion TPC‑57A Touch Panel Computer

• qVGA (320×240) Color LCD Panel with CFL Backlight and optional Touch panel
• Switching power supply operates from 14 to 30 volts (AC or DC) in.
• Low‑power 10BaseT Ethernet interface
• GPIO for push buttons, etc.
• 2 × RS‑232 serial interfaces on DE‑9 connectors
• 1 × RS‑485 serial interface on terminal strip
• 2 × ultra‑efficient SMPS feeding 5 V for logic and display, and 12 V for the backlight inverter
• High‑quality 16‑bit Audio Out (for MP3s, Announcements, etc.)
• 4 channels of 4–20 mA Analog Sensor Inputs
• and digital inputs and outputs, preconfigured to drive optocouplers (with LED drive power)
• There is a low‑power Real‑Time Clock with Battery Backup (RTC)
• There is a Header for external I²C devices, with +5 V Power and Ground
• There is a Flash Memory Card Connector for SD or MMC
• Of course, there are Dual USB Host ports (USB Type A connector)
• plus a USB Device (Gadget) port (USB Type B connector)
• And, like all devices powered by a Medallion CPU Module, it ships with Linux 2.6 plus drivers preinstalled!

all packaged into a space barely 4.5″ × 7″ × 1.25″
Power consumption 8 watts or less (depending on CPU speed and display mode).