Connector Pin Assignment

Pin #

Function

Description

1

GND

System ground.

2

VCC

Positive power input, 3.3V nominal, +/- 5%.

3

CS

Chip select, active LOW (input*).

4

RX

UART, receive line (input*).

5

DI

SPI port, data in (input*, must be connected to DO of Tibbo module).

6

TX

UART, transmit line (output*).

7

RST

Reset, active LOW (input*).

8

N.C.

No connection.

9

DO

SPI port, data out (output*, must be connected to DI of Tibbo module).

10

CLK

SPI port, clock (input*).