Page 10 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

5 Sensors 59
Signal conditioning 60
Comparator example 60
Voltage divider 61
Light sensors (sight) 64
Photoresistive 64
Photoresistive light switch 64
Photoresistive neuron 66
Photovoltaic 67
Infrared 67
DTMF IR communication/remote control system 70
DTMF 70
Machine vision 80
Body sense 81
Direction—magnetic fields 82
Testing and calibration 83
Computer interface 83
1525 electronic analog compass 84
GPS 85
Speech recognition 85
Sound and ultrasonics 86
Ultrasonic receiver section 87
Ultrasonic transmitter section 88
Arranging the ultrasonic sensors 90
Touch and pressure 90
Piezoelectric material 91
Switches 92
Bend sensors 92
Heat 93
Pressure sensor 94
Smell 94
Humidity 97
Testing sensors 97
Building a tester robot 97
Improving the tester robot 99

6 Intelligence 101
Microchip’s PIC microcontroller 101
Why use a microcontroller? 102

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