Book Image

Arduino Electronics Blueprints

Book Image

Arduino Electronics Blueprints

Overview of this book

Table of Contents (17 chapters)
Arduino Electronics Blueprints
About the Author
About the Reviewers


In this chapter, an Arduino-SNAP circuit AM radio prototype was built:

  • A discussion on radio communication basics was presented

  • Modulation is a radio wave processing technique in which two distinct frequencies are superimposed to produce one unique signal, and it was presented in this chapter as well

  • The UTC 7642 linear amplifier IC was introduced along with its internal circuit schematic diagram and device pictorial diagram

  • This IC, with the ability to boost high-frequency signals, is the heart of the SNAP circuit AM radio

  • The IR remote trigger circuit was discussed using a picture diagram.

  • The IR remote sensor provides logic level voltages that allow the Arduino to operate the LCD and SNAP circuit AM radio

  • To aid in the ON/OFF control of the SNAP circuit AM radio, a littleBits latch was introduced

  • A latch is a digital circuit that provides a stable logic level voltage (0V or +5V) based on the device being triggered by a positive edge input signal

To test the IR remote trigger circuit with...