Raspberry Pi Geek 20

Make your own body cam with a Raspberry Pi, a cannibalized webcam, a WiFi module, and some Python.

Send documents to a printer and automate many tasks from the command line.

The SunIOT project attaches a Grove base unit with a light sensor to a Raspberry Pi to measure various components of the light spectrum.

Pgrep is a valuable tool for tracking down processes from the command line.

Powerful and flexible chess programs have been scarce on the Raspberry Pi, but PyChess even checkmates programs available on other platforms.

When your script doesn't run as expected, Scratch offers some strategies for solving your problems.

Create super easy Pi programs to turn on lights, speak to you, or control motors.

What's new in the SBC, IoT, and maker realm.