User manual

AOAA Kit – Software User’s Guide

Page 10

 If a USB charger does not exist an external +5VDC/1A supply can be used. A

standard 2.1mm power jack input exists on the board. Center pin is positive.

5) A USB cable to the Android device. Normally this is a USB-A (inserted in AOAA Board) to

USB micro-B (inserted in Android device) cable, but not always. Some Android devices have

special USB connectors. Use the cable that comes with the Android device and connect to

the USB-A connector on the AOAA Board.

The following additional hardware is needed to run the XBee demo in section 3.3 :

 Two or more XBee modules

 Either a second AOAA Board or an LPCXpresso LPC1769 mounted on an LPCXpresso Base

Board

2.3 ESD Precaution

Please note that the AOAA Board comes without any case/box and all

components are exposed for finger touches – and therefore extra attention must

be paid to ESD (electrostatic discharge) precaution.

Make it a habit always to first touch the metal surface of one of the USB or

Ethernet connectors for a few seconds with both hands before touching

any other parts of the boards. That way, you will have the same potential as

the board and therefore minimize the risk for ESD.

Note that Embedded Artists does not replace boards that have been damaged by ESD.

2.4 General Handling Care

Handle the AOAA Board with care. The board is not mounted in a protective case/box and is not

designed for rough physical handling. Connectors can wear out after excessive use. The board is

designed for evaluation and prototyping use, and not for integration into consumer or industrial end-

products.

2.5 Code Read Protection

The LPC1769 and LPC11C24 have a Code Read Protection function (specifically CRP3, see

respective datasheets/user’s manuals for details) that, if enabled, will make the chip impossible to

reprogram (unless the user program has implemented such functionality).

Note that Embedded Artists does not replace AOAA boards where the LPC1769 or LPC11C24

have CRP3 enabled. It’s the user’s responsibility to not invoke this mode by accident.

2.6 Other Products from Embedded Artists

Embedded Artists have a broad range of LPC1000/2000/3000/4000 based boards that are very low

cost and developed for prototyping / development as well as for OEM applications. Modifications for

OEM applications can easily be done, even for modest production volumes. Contact Embedded Artists

for further information about design and production services.

2.6.1 Design and Production Services

Embedded Artists provide design services for custom designs, either completely new or modification to

existing boards. Specific peripherals and I/O can easily be added to different designs, for example,

communication interfaces, specific analog or digital I/O, and power supplies. Embedded Artists has a

broad, and long, experience in designing industrial electronics in general and with NXP’s

LPC1000/2000/3000/4000 microcontroller families in specific. Our competence also includes wireless

and wired communication for embedded systems. For example IEEE802.11a/b/g/n (WLAN),

Bluetooth™, ZigBee™, ISM RF, Ethernet, CAN, RS485, and Fieldbuses.