CALLIOPE Mini Micro Controller
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Buttons:
Use the buttons A and B to the left and right of the red LEDs to make inputs. When you press a button a circuit is closed. The board can recognize whether only one or both buttons are pressed. Using a program you can decide what happens when you press one or both buttons.
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Sensors:
The combined component below button A contains a compass, a motion sensor and an accelerometer. These tools help the Calliope mini detect in which direction and at which speed it is moving and also measures the temperature and the brightness.
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Pins: The pins marked: + and - can be used to connect a battery using banana or alligator clips. The pins marked: P0, P1 and P2 are be used to connect sensors like temperature or moisture sensors. Additionally, P1 and P2 are touch-sensitive.
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USB:
The USB port on top is the most simple option to transfer self-made programs. Connect the board to your computer using a micro-USB cable and get going!
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Bluetooth: Don't want to use cables and want to work with your mini without a computer? Using Bluetooth you can connect your mini with a smartphone or a tablet and transfer data. It also works the other way around - the mini can trigger certain functions on your smartphone like you programmed them. Additionally it's possible to have minis communicate and exchange information with each other using the wireless module
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Speakers and microphone: Integrated speaker Plays and Records, Play music or let it beep!