NRF51822 Bluetooth BLE4 2.4GHz Wireless Communication Module

This module is designed for low-power wireless communication, supporting Bluetooth Low Energy protocols with excellent range and stability.
It includes both the RF and MCU cores in a single chip, allowing it to function either as a standalone microcontroller or as a wireless interface for another host MCU via UART, SPI, or I²C.

The NRF51822 is ideal for applications that require low latency, low energy consumption, and compact integration, such as beacons, wearable devices, wireless sensors, and IoT systems.

• Onboard chip: nRF51822
• Communication distance (open outdoor@1M data rate): 30 m
• Frequency range: 2.4GHz
• Operating voltage: 2.0 Volts to 3.6 volts
• Operating temperature: -40° ~ 85°
• Expansion pin header: all the I/O except P0.26 and P0.27
• Pin header pitch: 2.00 mm
• Spacing between pin headers on the left side and the right side: 18.00mm
• Antenna: onboard antenna

• 2.4 GHz multiprotocol RF transceiver
• 128 bit AES HW encryption
• 256kB flash & 16kB RAM
• Programmable Peripheral Interconnect (PPI)
• Digital interfaces: SPI, I2C, UART
• 10 bit ADC
• Programmable output power: -20 to +4 dBm
• Independent application development and protocol stack
• Fully compatible with NRF24L series
• Pinout compatible with NRF51xxx series
• Global separate power management
• Operating voltage: 1.8 V ~ 3.6 V

• Wearable devices
• Bluetooth intelligent application
• Mobile phone accessories
• RFID labels
• Smart home appliances
• Industry control
• Data acquisition system