Hailege 2pcs NRF51822 CORE51822 2.4GHz BT4.0 Wireless Bluetooth Module Bluetooth 4.0 Communication Board RF Transceiver Controller Antenna SPI I2C UART

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): 24.5mm x 32.26mm Expansion pinheader: all the I/Os except P0.26 and P0.27 Pinheader pitch: 2.00mm Spacing between pinheaders on the left side and the right side: 18.00mm Antenna: onboard antenna Features: 2.4 GHz multiprotocol RF transceiver ARM Cortex-M0 32 bit processor 128 bit AES HW encryption 128kB 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 Applications:Wearable devices;Bluetooth intelligent application; Mobile phone accessories;RFID labels;Smart home appliances;Industry control;Data acquisition system;Revision History; 2015.06, Core51822 upgrades the onboard chip to Rev3, features RAM 16K, supports higher version SDK, and all the demo codes are still compatible with the Rev2 ones. Package Included: 2 x NRF51822 CORE51822 2.4GHz BT4.0 Wireless Bluetooth Module