9
ATZB-EVB-XXX-XXX User Manual
AVR-09-2011
UID (Unique Identifier) is HEX value, 8 bytes long. UID is used for setting unique
MAC address of the node.
UID is hardware defined value. It is programmed into a chip (Silicon Serial Number
by Maxim/Dallas) at the factory.
UID is unique, and cannot be overwritten. In order to ensure the presence of UID on
the board it is required to execute Hardware Test application (see Section 4.7 for
details).
ATZB-EVB (MeshBean) Board Design
The ATZB-EVB (MeshBean) board contains the ZigBit module, which operates as
ZigBee/802.15.4 transceiver. It also includes sensors, buttons, DIP switches, and a
set of interfaces.
The board provides the following interfaces:
USB 2.0 port
Light and temperature sensors
2 push buttons controlling the software
Reset
button
3
DIP
switches
3 software-controlled LEDs
Symmetrical
dipole
PCB
antenna (only for ATZB-EVB
(MeshBean) with PCB antenna)
SMA connector (only for ATZB-EVB (MeshBean) with
external antenna)
JTAG connector for software upload and debugging
Power connector (3 V) to use an AC/DC adapter (not
supplied with ZDK)
20-pin Expansion slot containing external ZigBit’s interfaces
(see Table ), including:
Serial port interface (RS-232)
USART
Buffered
I
2
C interface with ESD protection and voltage
level translation
ADC/GPIO
Battery compartment for AA-size batteries
3 configuration jumpers
3 clamps for power consumption measurements.
Also, the board contains an internal voltage regulator to supply most of the
components with 3.6 V. This is needed if ZigBit’s MCU is to be run at 8 MHz
.1
.
NOTE:
Normally ZigBit module is powered directly by the batteries, USB or
AC/DC adapter (via protection circuitry); however, Jumper J2 (see
Table ) can switch ZigBit to 3.6 V supply.
See Figure 1 for the layout of ATZB-EVB (MeshBean) version with integrated PCB
antenna and the board’s functional diagram.
1
8MHz requires changes in the BitCloud Software that normally runs at 4 MHz in
order to extend the voltage range and decrease power consumption.
