Connecting the Sleepy Pi 1 Expansion IO

Expansion Headers

The Sleepy Pi 1 exposes a mixture of Raspberry Pi GPIO and also Arduino I/O to the outside world. There are 3 headers each with a double row of linked contacts. The pinouts are shown below:

The Sleepy Pi expansion connections

You can solder in a header connector into one of the rows of connections and use the other to wire links to the uncommitted Screw Terminals connections.

Screw Terminals

Sleepy Pi Screw Terminals