Connect robot servo to RPi and use Java Embedded to program it (Part 4)
By Hinkmond-Oracle on Feb 13, 2013
"We need more power, Scotty!" When connecting a servo to your Raspberry Pi with Java Embedded, make sure to add a more powerful 2 amp USB power adapter, rather than use the original 0.7 amp adapter that comes with the RPi device. This is because connecting a servo to your RPi GPIO will draw up to 400 milliamps and steal away power from the RPi itself, making it crash, reboot, or worse.
Here's what to buy:
See the full series of blogs posts for this demo: