The micro:bit is an open source system originally designed by the BBC for use in computer education in the UK and is now available in Australia. Described as being about half the size of a credit card, you can use the accelerometer to detect movement and tilting or the magnetic sensor to detect metal or create a compass. Uses for the 5 x 5 LED display are limited only by the imagination and 2 on-board input push buttons provide instant control. Another 3 inputs are provided via the 5 ring connectors (the other 2 are for power and ground) which can be accessed via alligator clips or banana connectors. On top of this, the ring connectors form part of a larger 23 pin edge connector for more advanced projects. And if that isn't enough, USB and Bluetooth® connectivity allows interfacing with other peripherals! The version two micro:bit board comes now with microphone and speaker so you have easier ways to use sound and touch to get creative. Specifications CPU : Nordic Semiconductor nRF52833 64MHz GPU : 16 MHz ARM Cortex-M0 microcontroller RAM : 128.00000000kB Flash Memory : 512.00000000kB Bluetooth Version : V5.0 Length : 52.00000000mm Width : 43.00000000mm Weight : 6.00000000g USB Voltage Input : 5.00000000V, 0.00000000V USB Item Connection : Micro USB USB Lead included : true USB Lead length : 150.00000000mm Availability : Stocked item