{"title":"Calliope Mini Development Board","handle":"calliope-mini-development-board","url":"/products/calliope-mini-development-board","description":"Willkommen, Calliope Mini! Developed in Germany for students in primary school and up, this heavenly star-shaped development board is a souped-up derivative of the micro: bit.The main chip on the Calliope is the same nRF51822 as the micro: bit so for many purposes, it can be programmed the same way. There are some big upgrades though!Things that are the same as the micro: bit\nNordic nRF51822 Multi-protocol Bluetooth® 4.0 low energy / 2.4GHz RF SoC\n32-bit ARM Cortex M0 processor (16MHz)\n16kB RAM\n256kB Flash\nBluetooth low energy\n5x5 LED matrix display\nUSB Micro B connection (programming and power supply)\nJST battery connector (3.3V)\n2 programmable buttons\nPWM outputs\nNXP KL26z (USB UART and programming interface chip)\nSerial interface (USB + configurable ports)\n4 analog inputs\n8-11 Input / Output Connections (depending on software configuration)\nSPI + I2C\nThings that are new or different:\nInstead of edge-connect pads on the bottom of the board, like the micro: bit, Calliope Mini's has a circular star design, with alligator pads on 6 corners for easy connection.\nFull 9 degrees of freedom IMU with Accelerometer, Gyroscope, Magnetometer (Bosch BMX055) - the micro: bit has only accelerometer and magenetometer, and they are different/separate chips.\nMEMS Microphone for audio input\nDC Motor Driver (TI DRV8837) to drive a single DC motor or solenoid\nPiezo Speaker\nRGB LED (WS2812B NeoPixel)\n2 x Grove connectors (I2C + serial / analog)\nSPECIFICATION\nNordic nRF51822 Multi-protocol Bluetooth® 4.0 low energy / 2.4GHz RF SoC\n32-bit ARM Cortex M0 processor (16MHz)\n16kB RAM\n256kB Flash\nBluetooth low energy\nOperating/Supply Voltage: 3.3V\n","vendor":"DFRobot","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":3344,"title":"Default Title","sku":"DF-DFR0840","price":121.82,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}