Emakefun Micro:bit PH2.0 Sensor:bit Extensions

For details, please see the official website

Sensor:bit module introduction

Basic input module

1. matrix keyboard module

• Initialize matrix keyboard pins SCL, SDO
• 
• Implement Micro:bit to read and display keyboard value
• 
• Sample program
• 
• Use two pins to get the value, hit to display the corresponding letter or number

2. Touch button module

• Detect if touched by pin
• 
• Sample program
• 
• When the module is touched, it will show a smiley face, otherwise it will show a sad face

3. Button Module

• Detect whether the key is pressed by the pin
• 
• Sample program
• 
• When the button is pressed, the smiley emoji will be displayed, otherwise the sad emoticon will be displayed

4. Touch the module

• Detect collision by pin
• 
• Sample program
• 
• A happy emoji is displayed when a collision occurs, and a sad emoticon is displayed when it does not occur

5. Sliding Rheostat Module

• Get the current resistance value of the varistor (1~100) through the pin
• 
• Sample program
• 
• Display the current resistance value of the sliding rheostat, and update the value every second

6. Rotary Potentiometer Module

• Get the current voltage value of the rotary potentiometer through the pin
• 
• Sample program
• 
• Display the voltage value of the current rotating potentiometer, update the value every second

7. Joystick Module

• Initialize pins X, Y, B
• 
• Get analog value via pin X/Y
• 
• Determine if the button is pressed
• 
• Sample program
• 
• When the joystick is pushed up/down/left/right, the LED dot matrix screen will print up/down/left/right patterns. When the joystick is pressed, the LED dot matrix screen will print a happy expression.

8. Piano Module V1

• Initialize pins CLK, DIO
• 
• Implement whether to play the piano
• 
• Sample program
• 
• By touching different keys, different music will be generated

9. Piano Module V2

• Initialize pins CLK, DIO
• 
• Implement whether to play the piano
• 
• Sample program
• 
• By touching different keys, different music will be generated

10. PH2.0 handle

• The PH2.0 handle is connected to the I2C pins by default (ie P19, P20), the following code achieves the effect of PH2.0
• Get controller button state
• 
• Get the value of the X/Y axis
• 
• Determine if the handle button is released
• 
• Determine if the handle button is pressed
• 
• Sample program
• 
• Get the value of the X/Y axis. After 1 second, the function of judging the state of each button can be realized. If it is pressed, it will display a crying face, and when it is released, it will display a smiling face

sensor

1. Water vapor sensor

• Get the water vapor concentration in the environment through the pin
• 
• Sample program
• 
• Display the water vapor concentration value, which is updated every second

2. LM35 temperature sensor

• Get ambient temperature through pin
• 
• Sample program
• 
• Display the ambient temperature value and update the display every second

3. Flame sensor

• Judging that there is flame around by the digital value obtained from the pin
• 
• Get the analog value of the flame through the pin
• 
• Sample program
• 
• Judging whether there is a flame around, if there is an analog value to display the flame, if it does not exist, it will display a smiley face.

4. Infrared tracking sensor

• Determine if there is a black wire by the pin
• 
• Sample program
• 
• If the infrared tracking sensor senses a black line, it will display a crying face, otherwise it will display a smiling face

5. Tilt Sensor

• Judging whether it is tilted by the pin
• 
• Sample program
• 
• When the tilt sensor senses tilt, it will show a crying face, otherwise it will show a smiling face

6. Light sensor

• Get the analog value of the light intensity sensed by the light sensor in the environment through the pin
• 
• Sample program
• 
• Displays an analog value of light intensity, updating the display every second

7. Thermal Sensor

• Get heat value by pin
• 
• Sample program
• 
• Display the ambient heat value, update the display every second

8. Water depth sensor

• Get water depth value via pin
• 
• Sample program
• 
• Display the water depth value, which is updated every second

9. Soil Moisture Sensor

• Get soil moisture value via pin
• 
• Sample program
• 
• Display soil moisture value, update display every second

10. Obstacle Avoidance Sensor

• Get the digital value through the pin to determine whether there is an obstacle ahead
• sample program
• 
• Determine whether there is an obstacle in front of you, if there is a crying face, if not, a smiling face is displayed

11. Reed switch sensor

• Get the digital value through the pin to determine whether there is a magnetic field around
• 
• Sample program
• 
• The reed switch sensor senses whether there is a magnetic field around it, and if it exists, it will show a sad face, and if it does not exist, it will show a smiling face

12. Human body heat sensor

• Realize the function of obtaining the digital value obtained by the human body heat source sensor through the pin, thereby judging whether there is an ambient heat source around
• 
• Sample program
• 
• Determine whether there is a human body heat source around, if it exists, it will show a crying face, if not, it will show a smiling face

13. Shock Sensor

• The vibration sensor is a 4Pin sensor, the D port connected is used to detect whether vibration (digital value) is detected, and the Pin port connected to the A port is used to read the analog value.
• Get shock sensor analog value via pin