Calliope mini
The Calliope mini is a single-board computer developed for educational usage at German primary schools. The goal of the initiative is to provide all pupils as of grade three of primary schools in Germany with a Calliope mini free of charge.
Background
Calliope mini was inspired by the BBC micro:bit, which was distributed to pupils of grade seven in the United Kingdom. The non-profit Calliope gGmbH is responsible for developing and maintaining the Calliope mini.The name "Calliope mini" is a reference to Kalliope, a daughter of Zeus and the muse who presides over eloquence, science and epic poetry.
Hardware
- Nordic nRF51822 multi-protocol Bluetooth Low Energy / 2.4 GHz RF SoC
- * 32-bit ARM Cortex-M0 processor
- * 16 kB RAM
- * 256 kB Flash
- * Bluetooth Low Energy
- 5×5 LED matrix display
- Accelerometer, gyroscope, magnetometer
- MEMS microphone
- DC motor driver
- Piezo speaker
- RGB LED
- 2 programmable buttons
- Serial interface
- PWM output
- 4 banana plug / crocodile clip connections
- 4 analog inputs
- 8–11 input/output connections
- SPI + I²C
- USB Micro B connection
- JST battery connector
- Banana / crocodile clip connection for 3.3 V
- 2 Grove connectors
- NXP KL26z
- Flash program memory