July 2012
Beginner to intermediate
324 pages
8h 5m
English
Content preview from The Hands-on XBEE Lab Manual
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Experiment 7
How to Transmit Data on a Logic-Level Change
Requirements
2 XBee modules
2 XBee adapters
1 3.3-volt DC power supply
1 10-kohm (10,000-ohm) variable resistor
1 Solderless breadboard
1 USB-to-XBee adapter
1 USB cable—type-A to mini-B
X-CTU software running on a Windows PC, with an open USB port
Small screwdriver, flat blade
Copies of the tables from Appendix I
Introduction
In Experiment 6, an XBee module transmitted data continuously based on the Sample-Rate and the Samples-before-TX parameters set with the X-CTU program. If an equipment designer selected a long sample rate—a long period between samples—the equipment could miss detecting a change at one of the XBee module’s digital inputs when it occurs. Suppose you have connected ...
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