Learn Electronics with Arduino by Donald Wilcher

Author:Donald Wilcher
Language: eng
Format: epub, pdf
ISBN: 9781430242666
Publisher: Apress

Figure 6-1. Parts required for the music box projects and experiments

Parts List

Arduino Duemilanove or equivalent

10K potentiometer

470K resistor

4 10K resistors

FlexiForce sensor

CdS photocell

4-bit DIP switch

2 N3904 NPN transistor

IFR630A N-channel MOSFET

Keypad

8Ω speaker

Piezo-buzzer

Small solderless breadboard

22AWG solid wire

Digital multimeter

Oscilloscope (optional)

Electronic tools

Remixing Physical-Computing and Driver Interface Circuits

Continuing with the technique of remixing, we’ll use the following components for creating human interaction with the electronic music box: a FlexiForce sensora 4-bit DIP switch, a CdS photocell, a speaker, and a keypad. The BJT (bipolar junction transistor) and PMOSFET (power metal oxide semiconductor field effect transistor) electronic components will be used to drive a piezo-buzzer, and a speaker will be used to enhance the audible output of the Arduino by providing sufficient sourcing current to the audio output components. The Arduino will provide the audible sound based on the tone instruction and its associated software library components. Figures 6-2, 6-3, 6-4, and 6-5 show variations of system block diagrams for four physical-computing music box controllers. Also, the sketch used in the interactive electronic devices will allow audible tone control operation for the piezo-buzzer and speaker audio output components.

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