Connection to the Raspberry Pi

The SmartPi expansion module is connected via the GPIO port of the Raspberry Pi. The power supply for the SmartPi expansion module is via the Raspberry Pi. The simplest connection is via a 16-pin flat-ribbon cable. Figure 1 shows the connections of the SmartPi expansion module.

SmartPi-extension module Raspberry Pi connector
+3v3 3V3

Pin1

SDA SDA

Pin3

SCL SCL

PIN5

RESET GPIO4

PIN7

GND GND

PIN9, PIN6, PIN14

HSA GPIO17

PIN11

HSD GPIO27

PIN13

IRQ0 GPIO22

PIN15

+5V 5V

PIN2

CF3 GPIO18

PIN12

IRQ1 GPIO23

PIN16

Connections of the Smart Pi extension modules

Connections of the Smart Pi extension modules