Design Guide

ThingMagic Nano Carrier Board
A DIVISION OF TRIMBLE
54 Hardware Integration
of the M6e performs the same function as the ENABLE line in the Nano, but has reversed
polarity.
The UART RX and UART TX lines are buffered on the Nano Carrier Board. This makes
the inputs 5V tolerant and increases the output current driving capability from 10 mA to 15
mA. Diodes are also added on all I/O lines to increase the ESD protection.
The buffer on the Nano Carrier Board is driven by the Vout pin on the ThingMagic Nano.
The current supplied to this buffer will count toward the 1A total current that the
Pin Number Signal
Signal Direction
with respect to
Carrier Board
Notes
1,2 GND Power and Signal
Return
Must connect both
pins to ground.
3.4 DC Power in Input 3.3 to 5.5 VDC; must
connect both pins to
the supply.
5 GPIO1 Bidirectional Same Specifications
as Nano itself.
6 GPIO2 Bidirectional Same Specifications
as Nano itself.
7 GPIO3 Bidirectional Same Specifications
as Nano itself.
8 GPIO4 Bidirectional Same Specifications
as Nano itself.
9 UART RX Input
10 UART TX Output
11-13 RFU Not Internally Con-
nected
14 ENABLE Input Internally Pulled high,
in ENABLE state, if
not connected
15 Unused