Logo

FNK0094

  • C language
    • Welcome
      • Getting Started
      • Get Support and Offer Input
      • Safety and Precautions
      • About Freenove
      • Copyright
    • Preface
      • Control Board
    • 0. Getting Ready (Important)
      • Programming Software
      • Installation of Development Board Support Package
      • First Use
      • How to install the library
    • 1. Chapter LED Blink
      • 1.1. Project Control LED with Manual Button
        • 1.1.1. Component List
        • 1.1.2. Circuit Knowledge
          • 1.1.2.1. Power supply
          • 1.1.2.2. Voltage
          • 1.1.2.3. Current
          • 1.1.2.4. Resistor
        • 1.1.3. Component Knowledge
          • 1.1.3.1. Jumper
          • 1.1.3.2. Breadboard
          • 1.1.3.3. Push Button Switch
          • 1.1.3.4. LED
        • 1.1.4. Circuit
      • 1.2. Project Control LED with Control Board
        • 1.2.1. Component List
        • 1.2.2. Circuit Knowledge
          • 1.2.2.1. Analog signal and Digital signal
          • 1.2.2.2. Low level and high level
        • 1.2.3. Code Knowledge
          • 1.2.3.1. Comments
          • 1.2.3.2. Data type
          • 1.2.3.3. Constant
          • 1.2.3.4. Variable
          • 1.2.3.5. Function
        • 1.2.4. Circuit
        • 1.2.5. Sketch
          • 1.2.5.1. Sketch Control_LED_by_Control_Board
            • Reset()
      • 1.3. How to Use the Expanding GPIO Pins
    • 2. Chapter Two LEDs Blink
      • 2.1. Project Two LEDs Blink
        • 2.1.1. Component List
        • 2.1.2. Code Knowledge
          • 2.1.2.1. Parameters of function
          • 2.1.2.2. Boolean data type
          • 2.1.2.3. Logical operator
          • 2.1.2.4. Relation operator
          • 2.1.2.5. Conditional statement
        • 2.1.3. Circuit
        • 2.1.4. Sketch
          • 2.1.4.1. Sketch Two_LEDs_Blink
          • 2.1.4.2. Sketch Two_LEDs_Blink
          • 2.1.4.3. Sketch Two_LEDs_Blink
    • 3. Chapter LED Bar Graph
      • 3.1. Project LED Bar Graph Display
        • 3.1.1. Component List
        • 3.1.2. Component Knowledge
          • 3.1.2.1. LED bar graph
        • 3.1.3. Code Knowledge
          • 3.1.3.1. Array
          • 3.1.3.2. Loop
        • 3.1.4. Circuit
        • 3.1.5. Sketch
          • 3.1.5.1. Sketch LED_bar_graph_Display
          • 3.1.5.2. Sketch LED_bar_graph_Display
    • 4. Chapter LED Blink Smoothly
      • 4.1. Project LEDs Emit Different Brightness
        • 4.1.1. Component List
        • 4.1.2. Circuit Knowledge
          • 4.1.2.1. PWM
        • 4.1.3. Code Knowledge
          • 4.1.3.1. Return value of function
          • 4.1.3.2. return
        • 4.1.4. Circuit
        • 4.1.5. Sketch
          • 4.1.5.1. Sketch LEDs_Emit_Different_Brightness
            • analogWrite()
            • map()
      • 4.2. Project LED Blinking Smoothly
        • 4.2.1. Component List
        • 4.2.2. Circuit
        • 4.2.3. Sketch
          • 4.2.3.1. Sketch LED_Blink_Smoothly
    • 5. Chapter Control LED with Push Button Switch
      • 5.1. Project Control LED with Push Button Switch
        • 5.1.1. Component List
        • 5.1.2. Circuit Knowledge
          • 5.1.2.1. Connection of Push Button Switch
        • 5.1.3. Circuit
        • 5.1.4. Sketch
          • 5.1.4.1. Sketch Control_LED_Through_Push_Button
            • digitalRead()
      • 5.2. Project Change LED State with Push Button Switch
        • 5.2.1. Component List
        • 5.2.2. Circuit Knowledge
          • 5.2.2.1. Debounce a push button switch
        • 5.2.3. Circuit
        • 5.2.4. Sketch
          • 5.2.4.1. Sketch Change_LED_State_by_Push_Button
    • 6. Chapter Serial
      • 6.1. Project Send Data through Serial
        • 6.1.1. Component List
        • 6.1.2. Code Knowledge
          • 6.1.2.1. Bit and Byte
        • 6.1.3. Circuit Knowledge
          • 6.1.3.1. Serial and parallel communication
          • 6.1.3.2. Serial communication
          • 6.1.3.3. Serial port on Control board
        • 6.1.4. Circuit
        • 6.1.5. Sketch
          • 6.1.5.1. Sketch Send_data_through_Serial
      • 6.2. Project Receive Data through Serial Port
        • 6.2.1. Component List
        • 6.2.2. Code Knowledge
          • 6.2.2.1. Interrupt
        • 6.2.3. Circuit
        • 6.2.4. Sketch
          • 6.2.4.1. Sketch Receive_Data_through_Serial_Port
      • 6.3. Project Application of Serial
        • 6.3.1. Component List
        • 6.3.2. Circuit
        • 6.3.3. Sketch
          • 6.3.3.1. Sketch Application_of_Serial
            • constrain()
    • 7. Chapter Timer
      • 7.1. Project Serial print using timer
        • 7.1.1. Component List
        • 7.1.2. Code Knowledge
          • 7.1.2.1. Timer
        • 7.1.3. Circuit
        • 7.1.4. Sketch
          • 7.1.4.1. How to install the library
          • 7.1.4.2. Sketch Serial_print_using_timer
      • 7.2. Project Using timer to implement LED blinking
        • 7.2.1. Component List
        • 7.2.2. Circuit
        • 7.2.3. Sketch
          • 7.2.3.1. Sketch Using_timer_to_implement_LED_blinking
    • 8. Chapter ADC
      • 8.1. Project ADC
        • 8.1.1. Component List
        • 8.1.2. Circuit Knowledge
          • 8.1.2.1. ADC
        • 8.1.3. Component Knowledge
          • 8.1.3.1. Potentiometer
          • 8.1.3.2. Rotary potentiometer
        • 8.1.4. Circuit
        • 8.1.5. Sketch
          • 8.1.5.1. Sketch ADC
      • 8.2. Project Control LED by Potentiometer
        • 8.2.1. Component List
        • 8.2.2. Circuit
        • 8.2.3. Sketch
          • 8.2.3.1. Sketch Control_LED_by_Potentiometer
      • 8.3. Project Control LED by Potentiometer
        • 8.3.1. Component List
        • 8.3.2. Component Knowledge
          • 8.3.2.1. Photoresistor
        • 8.3.3. Circuit
        • 8.3.4. Sketch
          • 8.3.4.1. Sketch Control_LED_through_Photoresistor
    • 9. Chapter RGB LED
      • 9.1. Project Control RGB LED through Potentiometer
        • 9.1.1. Component List
        • 9.1.2. Component Knowledge
          • 9.1.2.1. RGB LED
        • 9.1.3. Circuit
        • 9.1.4. Sketch
          • 9.1.4.1. Sketch Control_RGB_LED_through_Potentiometer
      • 9.2. Project Multicolored LED
        • 9.2.1. Component List
        • 9.2.2. Circuit
        • 9.2.3. Sketch
          • 9.2.3.1. Sketch Colorful_LED
            • random()
    • 10. Chapter Buzzer
      • 10.1. Project Active Buzzer
        • 10.1.1. Component List
        • 10.1.2. Component knowledge
          • 10.1.2.1. Transistor
          • 10.1.2.2. Buzzer
        • 10.1.3. Circuit
        • 10.1.4. Sketch
          • 10.1.4.1. Sketch Active_Buzzer
      • 10.2. Project Passive Buzzer
        • 10.2.1. Component List
        • 10.2.2. Circuit
        • 10.2.3. Sketch
          • 10.2.3.1. Sketch Passive_Buzzer
            • tone()
    • 11. Chapter DAC
      • 11.1. Project DAC
        • 11.1.1. Component List
        • 11.1.2. Component Knowledge
          • 11.1.2.1. DAC
          • 11.1.2.2. Analog Output vs PWM
        • 11.1.3. Circuit
        • 11.1.4. Sketch
          • 11.1.4.1. Sketch DAC_Audio
    • 12. Chapter RTC
      • 12.1. Project RTC
        • 12.1.1. Component List
        • 12.1.2. Component Knowledge
          • 12.1.2.1. RTC
        • 12.1.3. Circuit
        • 12.1.4. Sketch
          • 12.1.4.1. Sketch RTC
    • 13. Chapter Motor
      • 13.1. Project Control Motor with L293D
        • 13.1.1. Component List
        • 13.1.2. Component Knowledge
          • 13.1.2.1. L293D
        • 13.1.3. Circuit
        • 13.1.4. Sketch
          • 13.1.4.1. Sketch Control_Motor_by_L293D
            • abs()
    • 14. Chapter Servo
      • 14.1. Project Servo Sweep
        • 14.1.1. Component List
        • 14.1.2. Component Knowledge
          • 14.1.2.1. Servo
        • 14.1.3. Circuit
        • 14.1.4. Sketch
          • 14.1.4.1. Sketch Servo_Sweep
      • 14.2. Project Control Servo with Potentiometer
        • 14.2.1. Component List
        • 14.2.2. Circuit
        • 14.2.3. Sketch
          • 14.2.3.1. Sketch Servo_Sweep
    • 15. Chapter Temperature Sensor
      • 15.1. Project Detect the Temperature
        • 15.1.1. Component List
        • 15.1.2. Component Knowledge
          • 15.1.2.1. Thermistor
        • 15.1.3. Circuit
        • 15.1.4. Sketch
          • 15.1.4.1. Sketch Detect_the_temperature
    • 16. Chapter Joystick
      • 16.1. Project Joystick
        • 16.1.1. Component List
        • 16.1.2. Component Knowledge
          • 16.1.2.1. Joystick
        • 16.1.3. Circuit
        • 16.1.4. Sketch
          • 16.1.4.1. Sketch Joystick
            • INPUT_PULLUP()
    • 17. Chapter LED Matrix
      • 17.1. Project 74HC595
        • 17.1.1. Component List
        • 17.1.2. Code Knowledge
          • 17.1.2.1. Hexadecimal
        • 17.1.3. Component Knowledge
          • 17.1.3.1. 74HC595
        • 17.1.4. Circuit
        • 17.1.5. Sketch
          • 17.1.5.1. Sketch 74HC595
      • 17.2. Project LED Matrix
        • 17.2.1. Component List
        • 17.2.2. Component Knowledge
          • 17.2.2.1. LED matrix
        • 17.2.3. Circuit
        • 17.2.4. Sketch
          • 17.2.4.1. Sketch LED_Matrix
    • 18. Chapter Onboard LED Matrix (WiFi Board)
      • 18.1. Project LED Matrix
        • 18.1.1. Component List
        • 18.1.2. Component Knowledge
          • 18.1.2.1. LED matrix
        • 18.1.3. Sketch
          • 18.1.3.1. Sketch LED_Matrix
      • 18.2. Project LED Matrix
        • 18.2.1. Component List
        • 18.2.2. Sketch
          • 18.2.2.1. Sketch LED_Matrix_Scrolling_Text
      • 18.3. Project Play the game with LED matrix
      • 18.4. Project LED Matrix Bounce Game
        • 18.4.1. Component List
        • 18.4.2. Circuit
        • 18.4.3. Sketch
          • 18.4.3.1. Sketch LED_Matrix_Bounce_Game
      • 18.5. Project LED Matrix Snake Game
        • 18.5.1. Component List
        • 18.5.2. Circuit
        • 18.5.3. Sketch
          • 18.5.3.1. Sketch LED_Matrix_Snake_Game
    • 19. Chapter I2C LCD1602
      • 19.1. Project Display the String on I2C LCD1602
        • 19.1.1. Component List
        • 19.1.2. Component Knowledge
          • 19.1.2.1. I2C LCD1602
        • 19.1.3. Circuit
        • 19.1.4. Sketch
          • 19.1.4.1. Sketch Display_the_string_on_LCD1602
          • 19.1.4.2. How to install the library
      • 19.2. Project I2C LCD1602 Clock
        • 19.2.1. Component List
        • 19.2.2. Code Knowledge
          • 19.2.2.1. Timer
        • 19.2.3. Circuit
        • 19.2.4. Sketch
          • 19.2.4.1. How to install the library
          • 19.2.4.2. Sketch LCD1602_Clock
    • 20. Chapter Digital Display
      • 20.1. Project 1-digit 7-segment Display
        • 20.1.1. Component List
        • 20.1.2. Component Knowledge
          • 20.1.2.1. 1-digit 7-segment display
        • 20.1.3. Circuit
        • 20.1.4. Sketch
          • 20.1.4.1. Sketch 1_Digit_7_Segment_Display
      • 20.2. Project 4-digit 7-segment Display
        • 20.2.1. Component List
        • 20.2.2. Component Knowledge
          • 20.2.2.1. 4-digit 7-segment display
        • 20.2.3. Circuit
        • 20.2.4. Sketch
          • 20.2.4.1. How to install the library
          • 20.2.4.2. Sketch 4_Digit_7-Segment_Display
          • 20.2.4.3. Sketch 4_Digit_7-Segment_Display
    • 21. Chapter Ultrasonic Ranging
      • 21.1. Project Ultrasonic Ranging
        • 21.1.1. Component List
        • 21.1.2. Component Knowledge
          • 21.1.2.1. Ultrasonic ranging module
        • 21.1.3. Circuit
        • 21.1.4. Sketch
          • 21.1.4.1. Sketch Ultrasonic_Ranging
            • pulseIn()
          • 21.1.4.2. Sketch Ultrasonic_Ranging
    • 22. Chapter WiFi Working Modes (WiFi Board)
      • 22.1. Project Station mode
        • 22.1.1. Component List
        • 22.1.2. Component knowledge
          • 22.1.2.1. Station mode
        • 22.1.3. Circuit
        • 22.1.4. Sketch
          • 22.1.4.1. Sketch_38.1.1
          • 22.1.4.2. Reference
      • 22.2. Project AP mode
        • 22.2.1. Component List & Circuit
        • 22.2.2. Component knowledge
          • 22.2.2.1. AP mode
        • 22.2.3. Circuit
        • 22.2.4. Sketch
          • 22.2.4.1. Sketch_38.2.1
          • 22.2.4.2. Sketch_37.2_AP_mode
    • 23. Chapter TCP/IP (WiFi Board)
      • 23.1. Project As Client
        • 23.1.1. Component List
        • 23.1.2. Component knowledge
          • 23.1.2.1. TCP connection
          • 23.1.2.2. Install Processing
          • 23.1.2.3. Use Server mode for communication
        • 23.1.3. Circuit
        • 23.1.4. Sketch
          • 23.1.4.1. Sketch_38.1_As_Client
          • 23.1.4.2. Reference
      • 23.2. Project As Server
        • 23.2.1. Component List
        • 23.2.2. Circuit
        • 23.2.3. Sketch
          • 23.2.3.1. Sketch_39.2.1
          • 23.2.3.2. Reference
    • 24. Chapter Control LED with Web (WiFi Board)
      • 24.1. Project Control the LED with Web
        • 24.1.1. Component List
        • 24.1.2. Component knowledge
          • 24.1.2.1. HTML
        • 24.1.3. Circuit
        • 24.1.4. Sketch
          • 24.1.4.1. Sketch_40.1.1
    • 25. Chapter Bluetooth (WiFi Board)
      • 25.1. Project Bluetooth Low Energy Data Passthrough
        • 25.1.1. Component List
        • 25.1.2. Component knowledge
          • 25.1.2.1. Master mode
          • 25.1.2.2. Slave mode
        • 25.1.3. Circuit
        • 25.1.4. Sketch
          • 25.1.4.1. Lightblue
      • 25.2. Project Control LED with Bluetooth
        • 25.2.1. Component List
        • 25.2.2. Circuit
        • 25.2.3. Sketch
          • 25.2.3.1. Sketch_41.2.1
    • 26. Chapter USB HID
      • 26.1. Project Mouse control
        • 26.1.1. Component List
        • 26.1.2. Component knowledge
          • 26.1.2.1. Human Interface Device (HID)
        • 26.1.3. Circuit
        • 26.1.4. Sketch
          • 26.1.4.1. Sketch_42.1.1
      • 26.2. Project Keypad Control
        • 26.2.1. Component List
        • 26.2.2. Circuit
        • 26.2.3. Sketch
          • 26.2.3.1. Sketch_42.2.1
    • What’s Next?
    • Appendix
      • ASCII Table
      • Resistor Color Code
  • Processing language
    • Welcome
      • Getting Started
      • Get Support and Offer Input
      • Safety and Precautions
      • About Freenove
      • Copyright
    • Preface
      • Processing Software
      • Install ControlP5
      • First Use
      • Communication protocol (Important)
    • 1. Chapter Voltmeter
      • 1.1. Project 1.1 Voltmeter
        • 1.1.1. Component List
        • 1.1.2. Circuit
        • 1.1.3. Sketch
          • 1.1.3.1. Sketch Voltmeter
      • 1.2. Project 1.2 Dual-Channel Voltmeter
        • 1.2.1. Component list
        • 1.2.2. Circuit
        • 1.2.3. Sketch
          • 1.2.3.1. Sketch Voltmeter_Dual_Channel
    • 2. Chapter Oscilloscope
      • 2.1. Project 2.1 Oscilloscope
        • 2.1.1. Component list
        • 2.1.2. Circuit
        • 2.1.3. Sketch
          • 2.1.3.1. Sketch Oscilloscope
    • 3. Chapter Control 2D and 3D Figures
      • 3.1. Project 3.1 Ellipse
        • 3.1.1. Component list
        • 3.1.2. Circuit
        • 3.1.3. Sketch
          • 3.1.3.1. Sketch Ellipse
      • 3.2. Project 3.2 Box 3D
        • 3.2.1. Component list
        • 3.2.2. Circuit
        • 3.2.3. Sketch
          • 3.2.3.1. Sketch Box_3D
    • 4. Chapter Snake Game
      • 4.1. Project 4.1 Snake Game
        • 4.1.1. Component list
        • 4.1.2. Circuit
        • 4.1.3. Sketch
          • 4.1.3.1. Sketch Snake_Game
      • 4.2. Project 4.2 Snake Game 3D
        • 4.2.1. Component list
        • 4.2.2. Circuit
        • 4.2.3. Sketch
          • 4.2.3.1. Sketch Snake_Game_3D
    • 5. Chapter Pick Apples
      • 5.1. Project 5.1 Pick Apples
        • 5.1.1. Component list
        • 5.1.2. Circuit
        • 5.1.3. Sketch
          • 5.1.3.1. Sketch Pick Apples
    • 6. Chapter Pong Game
      • 6.1. Project 6.1 Pong Game
        • 6.1.1. Component list
        • 6.1.2. Circuit
        • 6.1.3. Sketch
          • 6.1.3.1. Sketch Pong_Game
      • 6.2. Project 6.2 Pong Game 3D
        • 6.2.1. Component list
        • 6.2.2. Circuit
        • 6.2.3. Sketch
          • 6.2.3.1. Sketch Pong_Game_3D
    • 7. Chapter Tetris
      • 7.1. Project 7.1 Tetris
        • 7.1.1. Component list
        • 7.1.2. Circuit
        • 7.1.3. Sketch
          • 7.1.3.1. Sketch Tetris
    • What’s next?
fnk0094-docs
  • Search