Analog Sensor Connector

The pinout of the analog sensor interface on the PiShield are as follows:

PWR
SIG
GND

Digital (I2C) Sensor Connector

The pinout of the digital sensor interface, looking into the female connector of the shield are as follows:

NNN PWR
SDA SCL
NNN GND

(NNN = no connection)

PiShield Schematic

schematic

Other Technical Info

  • A2D Chip: MCP3008┬ávia SPI interface running at 5V on CE0. (Possible to use an additional SPI device on CE1)
  • All digital and analog sensor ports have 5V VCC
  • 5V I2C lines have 10k pullup resistors
  • Two GPIO headers on GPIO21 and 22 (Wiring Pi pins 2 and 3) have a direct connection to GPIO pins (3.3V logic)