



Description:
The Core51822 (B) is a compact, high-performance wireless module built around the Nordic nRF51822 SoC, supporting Bluetooth® 4.0 Low Energy and 2.4 GHz RF communication. Designed specifically for ultra-low power (ULP) wireless applications, this module offers reliable, energy-efficient connectivity ideal for IoT devices, wearables, smart sensors, and other embedded systems requiring minimal power consumption.
Specification:
- Onboard chip: nRF51822
- Communication distance (open outdoor@1M data rate): 30m
- Frequency range: 2.4GHz
- Operating voltage: 2.0V ~ 3.6V
- Operating temperature: -40℃ ~ 85℃
- Dimension (PCB): 17.0mm x 20.8mm
- Expansion pinheader: all the I/Os except P0.26 and P0.27
- Antenna: onboard antenna
Features:
- 2.4 GHz multiprotocol RF transceiver
- ARM® Cortex™-M0 32-bit processor
- 128-bit AES HW encryption
- 256kB flash 32kB 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 the NRF24L series
- Pinout compatible with the NRF51xxx series
- Global separate power management
- Operating voltage: 1.8 V ~ 3.6 V
Application:
- Wearable devices
- Bluetooth intelligent application
- Mobile phone accessories
- RFID labels
- Smart home appliances
- Industry control
- Data acquisition system
Useful Link:
Waveshare NRF51822 Core Board Advanced Bluetooth Wireless Module
Package Included:
1 x Waveshare NRF51822 Bluetooth 4.0 Core Development Board