The ETag module was designed for the Aid-n project as part of collaboration between UVA and JHUAPL. ETag stands for Electronic Tag and it is supposed to be used as a triage tag in disaster management, where every patient has an ETag assigned. ETag would monitor and report pulse, SPO2, and work as a triage tag representing the status of the patient using the color coded LEDs. The status can be assigned using optical code-cards, buttons, or by a wireless connection.

This sensor module compatible with MicaZ and Mica2 Motes, featuring the following components:

• Monochrome LCD screen: text output, 2 lines 8 characters each.
• Optional backlight for the LCD, if the LCD module is equipped with such.
• 4 navigation buttons, 2 on each side.
• 5 programmable LEDs: green, yellow, red, blue, and orange.
• Pulse Oximeter sensor connector. ETag is compatible witrh pulseox sensors made by BCI.
• OEM Pulse Oximeter daughterboard made by BCI.
• 4 photointerrupters. These can be used for optical code-card reading. The board is designed to accept three kinds of photointerrupters with different pinouts.
• The PulseOx feature can optionally be replaced by a RS232 level shifter driver, sharing the same DSUB 9-pin connector.

Software driver can be found here.

Hardware design files are available here.