User manual

LPCXpresso Experiment Kit - User’s Guide

Page 112

7.16 Extra: Work with RF-module

In this experiment you will learn how to work with radio modules.

Note that the breadboard cannot be used in these experiments. The RF module connectors

have 2.0 mm pitch as opposed to the 2.54 mm pitch found on breadboards. Also note that the

radio modules used in these experiments are not included and must be purchased separately.

The RF module interface is found on schematic page 7, also replicated in the picture below. All

components in Figure 63 must be soldered. J2, the LPCXpresso board connector on schematic page

2, must also be soldered.

Figure 63 – RF Module Interface on Schematic Page 7

Many RF modules come in the XBee® physical form factor. An UART interface is connected for

communication with the RF module. All 20 pins are however available via connectors J13/J14 in case

some other pins must be connected for more advanced experiments where more functionality in the

modules is utilized. Figure 64 illustrates how an XBee module is mounted in J15. Note that J12 should

normally have a shorting jumper in position 1-2, the right position as illustrated in the picture below.

Figure 64 – XBee® Module Mounted in J15