This is a portable display of the new events, broadcast via the NRF24 network from the base unit. Needed for staff when they are not at the nurses station. It runs off 3x AA NIMH rechargeable batteries, that are managed by a custom built bms circuit that handles charging and low voltage cutout. The arduino monitors the battery voltage, and uses the 'bms' circuit to do the switching, such as disconnecting charge supply after set time and turn itself of if voltage gets too low.

These units use a lower power NRF24 module with amplifier, as they only receive and run off battery.

Run time between charges is 2-4 days.