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CALLIOPE Mini Micro Controller

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CALLIOPE Mini Micro Controller

  • The Calliope Mini Was Created to give third-grade students easy access to the digital world. Getting started is so easy that children, teachers and parents without any prior knowledge can start immediately.
  • Hardware: Nordic nRF51822 Multi-protocol Bluetooth 4.0 low energy / 2.4GHz RF SoC, 32-bit ARM Cortex M0 processor (16MHz), 16kB RAM, 256kB Flash; NXP KL26z (USB and power supply)
  • 5x5 LED matrix screen; 1 Programmable RGB LED (WS2812b) Accelerometer, Gyroscope, Magnetometer (Bosch BMX055)
  • Piezo speaker; MEMS microphone DC Motor Driver (TI DRV8837) 2 programmable buttons Serial interface (USB + configurable ports) USB Micro B connection (programming and power supply), JST battery connector (3.3V)-----4 banana plug / crocodile clip connections, 4 analog inputs 8-11 Input / Output Connections (depending on software configuration)SPI + I2C; PWM output; Banana / crocodile clip connection for 3.3V (output) 2 I2C + serial / analog connectors (Grove)


  • IMPORTANT: Requires 2 AAA Batteries (NOT INCLUDED)


  • Includes:

    • Caliope Mini Board
    • Battery Holder
    • MIcro USB Cable


  • The Caliope Mini Features:


  • Lights:

    • The red LEDs form a 5x5 grid, each LED can be controlled individually.
    • The RGB LED below the grid allows for the display of numerous more colors.
    • The yellow status light on top of the board shows when the mini is powered and flashes if data is written on it.


  • 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.
  • 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.
  • 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.
  • 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! 
  • 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

  • Speakers and microphone: Integrated speaker Plays and Records, Play music or let it beep!

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