:bit V2 is a pocket-sized microcontroller launched by the British Broadcasting Corporation BBC, an ARM development board for youth programming education, which can do all kinds of cool creations, such as programming , musical instruments, robot control, science Experimentation and wearable device development, etc.:bt V2 adopts nRF52833 processor based on ARM -On-board wireless 2.4G, integrated low-energy Bluetooth 5.0; on-board MEMS microphone, speaker and touch-sensitive logo, use sound and touch to easily develop your own creativity.It also has 5x5 red LED dot , each LED light can be programmed individually; two programmable buttons can be used to control or pause and skip in the playlist.Equipped with a combined motion sensor IC, which contains an accelerometer and a magnetometer, the accelerometer can measure acceleration in 3 axes, and the magnetometer can be used as a compass or as a magnetic field detector.Processor: Nordic Semiconductor nRF52833Memory: RAM512 KB Flash, 128 KB RAMExternal chip: NXP KL27Z. 32KB RAMMicrophone: MEMS microphone and LED indicatorSpeaker: Onboard speakerTouch: Onboard touchable LoGoExpansion interface: 25pin pins, PWM, 12C, SP and expansion interface, 3 ring pins for connecting /banana plugs. 4 dedicated GPIO pin interfaces with notch design for easier connectionI2C bus: dedicated I2C busWireless connection: 2.4GHz radio/ Bluetooth 5.0 supply: -USB 5V supply, 3V interface or battery box supply, indicatorWorking current: 200mAMotion sensor: ST LSM303Programming software: C++, Makecode, Python, ScratchColour: blackMaterial: PCBSize: 5x4CMPackage Contents:1 * :Bit V2 Development Board ( colors, 't accept the specified color)Only the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.