Take the SDA wire and insert into the left column 2
nd
pin down (GPIO 2 Serial Data I2C in the
diagram).
Take the SCL wire and insert into the left column 3
rd
pin down (GPIO 3 Serial Clock I2C in the
diagram).
Take the GND wire and insert into the right column 7
th
pin down (Ground in the diagram).
Take the VCC wire and insert into the left column 1
st
pin down (3.3v in the diagram).
Note that the OLED uses 3.3v supply from the pi board whereas the fan uses the 5v. Make
sure you are aware of this!!
That’s it for the hardware setup –
re-apply the side panels and nuts.
