APPENDIX H
Troubleshooting
No matter how carefully you construct an electronic circuit, mount components, and create software, you will run into problems, probably more often than you like. The following suggestions will help you overcome problems that might arise as you perform the XBee-module experiments in this book. I base these suggestions and thoughts on experience.
Many electrical problems stem from poor power supplies. Always ensure that you have an adjustable power supply properly set for the voltage or voltages you need. Even though a supply might have terminals marked for, say +5 volts, for a fixed output, have a digital multimeter handy so you can measure voltages at power-supply terminals. Power supplies can have problems, too.
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