(courtesy of the Raspberry Pi WiFi Radio project)
The easiest way to stop mining is to press & hold the SELECT button for three seconds. After doing so, you should briefly see this message before the LCD backlight turns off:
Alternatively, if you wish to stop mining without shutting down your Pi, connect to the Pi using ssh or console cable and enter the following commands.
First, to stop the PiMiner script currently running in the background, we'll need to find its process ID by entering the following:
Use it to stop PiMiner by entering: