Micro: bit is a microcontroller of ARM structure designed by the BBC. It is only half size of a credit card, onboard comes with Bluetooth, accelerometer, electronic compass, three buttons, 5 x 5 LED dot matrix, which is mainly used for teens programming education.

Parameters:
1.Working Voltage:3.3V
2.Power Supply Interface:
3.Micro USB Programming/power supply port:5V
4.PH2.0 Power Port:3-3.3V
5.Alligator clip connector:3-3.3V
6.Detecting Range:0-3.3V
7.Processor:ARM Cortex-M0 micro processor
8.Working Temperature:0-85℃
9.Interface Type:
10.Micro USB Programming/power supply port
11.PH2.0 3V power supply port
12.4mm Alligator clip connector*5
13.edge pin *20
14.Product Size:43*52mm
15.Packaging Size:105*55*30mm
16.Weight:8.6g.

Features:

1,Support PXT graphical programming interface developed by Microsoft
2,Support Windows,macos,ios,Android and other operating systems
3,Based on WEB service, no need to download the compiler.
4,PC terminal via USB to write and simulate program
5,Mobile terminal via Bluetooth wireless to write and simulate program
6,Support many kinds of communicative program languages including javasript,python,mbed c.

Onboard Resource:
1,Nordic nRF51822 Bluetooth low energy chip:16MHz ARM Cortex-M0, 256KB Flash,16KB RAM
2,NXP KL26Z micro processor:48MHz ARM Cortex-M0+, support USB2.0 OTG
3,NXP MMA8652 three axis accelerometer
4,NXP MAG3110 three axis magnetometer
5,25 red LEDs to form a 5*5 dot matrix
6,3 buttons, including 2 user buttons and a reset button.
7,MicroUSB power/download interface, power port, 20-pin edge connector signal pin, including SPI,PWM,I2C and support 17 GPIO.