Improved CPU performance The overall hardware performance of the CPU is four that of the original. These optimizations sufficient basic guarantees for subsequent complex interaction and control projects.A capacitive touch sensor that returns a digital signal to the like a button.New speaker In addition to outputting sound through PWM on the pin, :BitV2 also has an onboard electromagnetic speaker that can output sound to complete more experiments.The onboard MEMS package microphone provides sound input for the , 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 interfacepower supply3 ring pins for attaching clips/banana plugsThe interface adopts designI2C bus: internal and external l2C busWireless: 2.4GHZ /Bluetooth 5.0Power supply: -USB 5V power supply/3V power interface or battery box power supplyIndicator light: power indicator lightWorking current: 200mAMotion sensor: ST LSM303Programming software: C++, Makecode, PythonType: Development BoardModel: V2.2Purpose: Graphically programmable Pythoncolor:BlackMaterial:PCBPackage Contents:1 x Development BoardOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.