KEHIPI 2PCS Pro Micro NRF52840 Development Board Wireless Bluetooth Charging Management ModuleNano V2.0 Bluetooth Charging Management Pro Micro...

NRF52840 is a high-performance, low-power The NRF5280 development board has a 3.7V lithium battery interface and a software switch that can cut off the power of the LED. When turned off, the standby power consumption can reach 1mA The NRF52840 chip uses an ARM Cortex-M4F processor, clocked at 64MHz, with built-in 1MB of flash memory and 256KB of RAM SuperMini NRF52840 is a Pro Micro alternative development board that is compatible with Nice! for Nano. Its pins are the same as ProMicro, which means it can be used with almost any Pro Micro keyboard. It also has a variety of peripherals, including ADC, PWM, SPI, I2C, UART, USB and GPIO, etc.