Hardware Connections

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WebCell Pinout

Pin connection layout.

Pin Description

No.

Name

Functions

1

Ground


2

Reset

Reset, active low.

3

Change

SD card change, active low.

4

DAC Out

Analog output voltage.

5

A0

Digital I/O, analog input.

6

A1

Digital I/O, analog input.

7

A2

Digital I/O, analog input.

8

A3

Digital I/O, analog input.

9

A4

Digital I/O, analog input.

10

A5

Digital I/O, analog input.

11

A6

Digital I/O, analog input.

12

A7

Digital I/O, analog input.

13

Aref

Analog reference input for DAC and/or ADC, 1.0V - 2.5V.

14

Ground


15

B0

Digital I/O, PWMA channel 0.

16

B1

Digital I/O, PWMA channel 1.

17

B2

Digital I/O, PWMA channel 2, SerialB receive data.

18

B3

Digital I/O, PWMA channel 3, SerialB transmit data.

19

B4

Digital I/O.

20

B5

Digital I/O, SPI clock out.

21

B6

Digital I/O, SPI receive data, SerialC receive data.

22

B7

Digital I/O, SPI transmit data, SerialC transmit data.

23

Ground


24

C3

PWMB channel 3, SerialA transmit data.

25

C1

PWMB channel 1, I2C serial clock.

26

C2

PWMB channel 2, SerialA receive data.

27

C0

PWMB channel 0, I2C serial data.

28

Ground


29

Reserved


30

3.3V

3.1V - 3.6V supply voltage @ 250mA.

31

Reserved


32

Reserved


33

Reserved


34

Ground