# When You Are Done

It’s important to disconnect the power from your BASIC Stamp and Board of Education (or HomeWork Board) whenever you leave it unattended or when you build or modify circuits on its breadboard. First, your batteries will last longer if the system is not drawing power when you’re not using it. Second, soon you will build circuits on the Board of Education or HomeWork Board prototyping area.

Caution! Circuit prototypes should never be left unattended with a battery or power supply connected. Always disconnect the power from your Board of Education or HomeWork Board before you walk away, even if you only plan on leaving it alone for a minute or two.

## Disconnecting Power

### For the Board of Education

With the Board of Education - Serial (Rev C), or Board of Education USB, disconnecting power is easy. Just move the 3-position switch to position-0 by pushing it to the left as shown below. (If you have an older Board of Education- Serial which does not have a 3-position switch, unplug the battery or power supply plug.)

Caution! Do not remove the BASIC Stamp module from its socket, unless it needs to be replaced with another module! Every time the BASIC Stamp is removed and re-inserted into the socket, you risk damaging it. You do not need to remove it for storage.

### For the HomeWork Board

Disconnecting the BASIC Stamp HomeWork Board’s power is easy too. If you are using the BASIC Stamp HomeWork Board, disconnect the battery as shown below.

## Your Turn

- Disconnect the power to your board now.
- If you are following the directions in a Stamps in Class text, you are ready to return to the text now.

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BASIC Stamp Help Version 2.5.4

Copyright © Parallax Inc.

8/8/2012