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pin assignments of the webduino:bit

by shedboy71

In this article we look at the all important pinouts and GPIO assignments of the webduino:bit (bpi:bit)

GPIO pin assignments

The I/O pins that are used are as follows

  • RGB LED matrix: GPIO4
  • Photosensitive sensor: GPIO36 (Analog A0, upper left), GPIO39 (Analog A3, upper right)
  • Buttons: GPIO35 (Botton A), GPIO27 (Botton B)
  • Thermistor: GPIO34 (Analog A6)
  • Buzzer: GPIO25
  • MPU-9250 9-axis sensor: GPIO0, GPIO21(SDA), GPIO22(SCL)
GPIO control of webduino:bit (bpi:bit)
Light Sensor(L) GPIO 36 Analog Input
Light Sensor(R) GPIO 39 Analog Input
Button A GPIO 35 Digital Input
Button B GPIO 27 Digital Input
Thermistor GPIO 34 Analog Input
Buzzer GPIO 25 PWM(Digital Output) / Analog Output
RGB_LED GPIO 4 Digital Output
MPU9250_SCL GPIO 22 Digital Output
MPU9250_SDA GPIO 21 Digital Output
MPU9250_INT GPIO 16 Digital Input
R_LED(SPI_SCK) GPIO 18 Digital Output

 

Hardware Pin assignments

 

Pin Name Analog Function1 Analog Function2 Function1 Function2 Power
P3 ADC2_CH4 GPIO13
P0 ADC2_CH8 DAC_1 GPIO25
P4 ADC2_CH3 GPIO16
P5 ADC1_CH7 GPIO35
P6 ADC2_CH5 GPIO12
P7 ADC2_CH6 GPIO14
P1 ADC1_CH4 GPIO32
P8 GPIO16
P9 GPIO17
P10 ADC2_CH9 DAC_2 GPIO26
P11 ADC2_CH7 GPIO27
P12 ADC2_CH2 GPIO02
P2 ADC1_CH5 GPIO33
P13 GPIO18 SPI_SS
P14 GPIO19 SPI_SCK
P15 GPIO23 SPI_MISO
P16 GPIO05 SPI_MOSI
3V3 POWER:3V3
3V3 POWER:3V3
3V3 POWER:3V3
P19 GPIO22 I2C_SCL
P20 GPIO21 I2C_SDA
GND GROUND
GND GROUND
GND GROUND

 

 

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