Feature: 1. HIGH PERFORMANCE AND LOW POWER CONSUMPTION: Equipped with for Nordic Semiconductor's NRF52840 chip, which utilizes an advanced ARM Cortex‑M4F processor running at speeds up to 64MHz with excellent energy efficiency, it is suitable for applications that require long runtimes, such as wearable devices or wireless keyboards. 2. MULTI PROTOCOL SUPPORT: The NRF52840 chip not only supports the latest Bluetooth 5.0 technology, but is also compatible with for Thread, for Zigbee, for ANT, and general purpose 2.4GHz wireless communicating protocols, providing developers with a wide range of connectivity options for diverse Internet of Things (IoT) projects. 3. LARGE STORAGE AND MEMORY: Equipped with 1MB flash memory and 256KB RAM, it provides ample space for complex applications and data processing, facilitating the implementation of more advanced functions and algorithms. 4. RICH PERIPHERAL INTERFACES: Including ADC, PWM, SPI, I2C, UART, USB and GPIO, etc., providing great convenience for hardware expansion and multifunctional integration, suitable for accessing various sensors and peripherals. 5. COMPATIBILITY AND EASE OF USE: Compatible with for Nice Nano V2.0 and retains the same pinout as the original, which facilitates users to seamlessly migrate their existing projects without the need to redesign the board. 6. BUILT IN CHARGE MANAGEMENT: Provides a 3.7V Li ion battery interface and intelligent power management, including an LED power cut off switch, which allows the device to consume as little as 1mA in standby mode, extending battery life. Specification: Item Type: NRF52840 Development Board Material: PCB CPU: NRF52840 Wireless: Bluetooth 5.0 Battery Charging Chip: Support Lithium Battery Charging and Discharging. Package List: 1 x Development Board3 x Pin