1. 显示
   1. 1602
   2. LED
      1. LED bar gragh
      2. 7-segment display
         1. controller - ICM7218A
         2. 74HC595
            1. http://arduino.cc/en/Tutorial/ShiftOut
         3. MAX7219
      3. Infrared LED
      4. LED matrix
      5. super bright LED
   3. NDS touch screen
   4. Nokia -Olimex
      1. 3310
      2. 5510
      3. 6610
      4. 6100
   5. 12864
   6. kent display
   7. screen key
2. 通信
   1. IR
      1. IR receiver - TSOP85
   2. xbee
   3. RF
      1. 434
      2. APC
   4. GSM
   5. 2.4G RF - $5
   6. bluetooth
   7. GPS - $20
   8. USB
3. Input
   1. joy stick
   2. blackberry trackballer
   3. keypad 12 button
4. Sensor
   1. Temperature
      1. LM35
      2. DS18B20
      3. SHT15
   2. 压感电阻
   3. 光敏电阻
   4. PIR
      1. ePIR
   5. Sonar Range Finder
   6. accelerator
      1. MMA7260
   7. Gyro - $8
   8. 9 degrees combo board = accecemeter + magnetmeter + gyro
   9. IR reflectance sensor
      1. 红外对射开关
      2. 红外寻找传感器/光电反射式传感器
      3. Line sensor
         1. 找线
      4. Photo Interrupter
   10. Programmable IR Receiver SIS-2
       1. Detect certain remote code
   11. Infrared Proximity Sensor
       1. 夏普GP2D12红外测距传感器
       2. GP2Y0A02YK0F
       3. GP2Y0A21YK
   12. Gas sensor
   13. bar code scanner
   14. Electret Microphone
   15. capacitive sensor
   16. cmos camera
   17. IR camera
   18. compass
   19. CO sensor
   20. Fingerprint scanner
   21. Force sensitive resistor
   22. Infrared Thermometer
       1. Non-contact temperture sensing
   23. Geiger counter
   24. load sensor - 50kg
   25. pressure sensor
   26. heart rate sensor
   27. RFID
   28. Sonar range finder
   29. Ultrasonic Range Finder - $28
   30. Thermoplastic elastomer
   31. Piezo Vibration Sensor
       1. This basic piezo sensor is often used for flex, touch, vibration and shock measurements.
   32. color sensor
5. 板子
   1. 万能板 - 最终焊接保存版本
   2. 面包板
      1. 有各种不同长度
      2. 用于调试线路
6. 储存
   1. SD
   2. MP3 codec IC
7. Actuator
   1. Stepper motor
   2. motor driver
      1. High voltage
      2. High current
   3. Brushless motor
   4. Brushed motor
   5. Servo
   6. DC motor
8. Switch
   1. Fuse
   2. 3-way sitch for mp3
9. Others
   1. Crystal
   2. Resonator
   3. hook up
   4. Prototyping
      1. Break away headers
      2. DC power jack
      3. DIP sockets
      4. Jumper wire
      5. Self seal bag
      6. header
      7. Protoboard
      8. Screw Terminals
      9. power supply station
   5. ISP
      1. MKII
      2. USBtinyISP
      3. Parrellel
   6. Power supply
      1. 8705 + 100uf +10uf
      2. 9V 电源
      3. USB
10. Arduino
    1. USB adapter