Improved CPU performance The overall hardware performance of the CPU is almost four of the original. These optimizations sufficient basic guarantees for subsequent complex interaction and control projects.A capacitive touch sensor returns a digital signal to the :bit like a button.New speaker In addition to outputting sound through PWM on the pin, :BitV2 also has an onboard electromagnetic speaker can output sound to complete more experiments.The onboard MEMS package microphone provides sound input for the :bit, and there is a microphone LED indicator on the front.The newly upgraded gold finger can better fix the clip.Processor: Nordic semiconductor nrf52833Memory: 512kb 28kb RAMExternal chip: NXP KL27Z 32KB RAMMicrophone: MEMS microphone with LED indicatorSpeaker: onboard speakerExtension ports:25 pins 4 dedicated GPIO pinsPWM.I2C, SPI and expansion interface supply3 ring pins for attaching /banana plugsThe interface adopts notch designI2C bus: internal and external l2C busWireless: 2.4GHZ /Bluetooth 5.0 supply: -USB 5V supply/3V interface or battery box supplyIndicator light: indicator lightWorking current: 200mAMotion sensor: ST LSM303Programming software: C++, Makecode, PythonType: Development Board: V2.2Purpose: Graphically programmable Pythoncolor:BlackMaterial:PCBPackage Contents:1 x Development BoardOnly the above package content, other products are not included.Note: Light reflection 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.