Core51822 (B) – NRF51822 Bluetooth 4.0 Module The Core51822 (B) is a cutting-edge wireless module built around the nRF51822, a multiprotocol Bluetooth® 4.0 low energy/2.4 GHz RF SoC. This module is specifically designed for ultra-low power (ULP) wireless applications, making it an ideal choice for developers and hobbyists looking to create custom keyboards such as Mitosis and Chimera. Core51822 (B) Specifications 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 nRF51822 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 NRF24L series Pinout compatible with NRF51xxx series Global separate power management Operating voltage: 1.8 V ~ 3.6 V The Core51822 (B) is not only a powerful module but also a flexible one, offering a wide range of features that make it suitable for various applications. Whether you’re building a custom keyboard or working on a different project, this module provides the reliability and performance you need.
