Project 6.1 Doorbell.................................................................................................................................................................. 88
Project 6.2 Alertor ..................................................................................................................................................................... 94
Chapter 7 AD/DA Converter ............................................ 99
Project 7.1 Read the Voltage of Potentiometer ............................................................................................................. 99
Chapter 8 Potentiometer & LED ................................. 110
Project 8.1 Soft Light.............................................................................................................................................................. 110
Chapter 9 Potentiometer & RGBLED ........................ 115
Project 9.1 Colorful Light ...................................................................................................................................................... 115
Chapter 10 Photoresistor & LED ................................. 122
Project 10.1 NightLamp ........................................................................................................................................................ 122
Chapter 11 Thermistor .................................................... 128
Project 11.1 Thermometer ................................................................................................................................................... 128
Chapter 12 Joystick ........................................................... 134
Project 12.1 Joystick ............................................................................................................................................................... 134
Chapter 13 Motor & Driver ........................................... 141
Project 13.1 Control Motor with Potentiometer .......................................................................................................... 141
Chapter 14 Relay & Motor ............................................ 152
Project 14.1.1 Relay & Motor .............................................................................................................................................. 152
Chapter 15 Servo ............................................................... 160
Project 15.1 Servo Sweep ..................................................................................................................................................... 160
Chapter 16 Stepping Motor .......................................... 169
Project 16.1 Stepping Motor............................................................................................................................................... 169
Chapter 17 74HC595 & LEDBar Graph .................... 180
Project 17.1 Flowing Water Light ...................................................................................................................................... 180
Chapter 18 74HC595 & 7-segment display. ......... 188
Project 18.1 7-segment display. ........................................................................................................................................ 188
Project 18.2 4-Digit 7-segment display.......................................................................................................................... 195
Chapter 19 74HC595 & LED Matrix ........................... 208
Project 19.1 LED Matrix ......................................................................................................................................................... 208
Chapter 20 LCD1602 ........................................................ 220