Nrf51822 2.4g Wireless Module Wireless Communication Bluetooth 4.0 Module

US $120

hong kong, Hong Kong
Jun 14th

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Ultra low power (ULP) wireless chip system XL51822 using NORDIC company's latest Bluetooth 4 chip NRF51822 design, nRF51822 is an ultra low power wireless applications (wirelesss applications ULP) to create a multi protocol single-chip solution. It integrates a Nordic class wireless transceiver, a Cortex M0 ARM kernel and flash 256KB + RAM 16KB. NRF51822 supports low energy Bluetooth4.0 and dedicated 2.4GHz protocol stack. Lower power consumption, higher performance NRF51822 uses 32 bit Cortex M0 ARM core, on chip flash 256kB (the development of Bluetooth 4 program, where 176kb can be used for application development). Compared to the 8/16 bit platform has a better code density and faster execution speed. Programmable peripheral Peripheral Interconnect Programmable (PPI) system provides a 16 channel bus, so that the device can not be directly involved in the case of MCU to carry out a direct and independent communication. This will reduce the latency caused by the CPU communication, and can keep the CPU sleep in the communication process to reduce energy consumption. The chip has two power supply modes - ON/OFF, and all of the system modules and peripherals have independent power management, for the control of the corresponding module according to the requirements of the task in the RUN/IDLE state to switch between. . The new Radio module is the basis for nRF51822's excellent performance. The module supports low power low energy (Bluetooth Nordic) and is compatible with the nRF24L series of products. Output power range between +4dBm to -20dBm, step by step for the 4dB. Ultra high sensitivity can be received by changing the range of information between -96 and -85dBm (depending on the data rate). The sensitivity of Bluetooth low power mode is -92.5dBm. Key characteristics: Support a variety of radio 2.4GHz 32 bit Cortex M0 processor ARM Flash/16kB RAM 256kB Stacks available as downloads Software Application and protocol stack completely separate development mode Flash 256kB I/O Digital Fully compatible with nRF24L-series Programmable output power +4dBm to -20dBm from RSSI RAM 16kB Flexible configurable 31 GPIO pin ON/OFF Simple global power management Full function digital interface: SPI/2-wire/UART ADC 10-bit AES ECB/CCM/AAR co-processor 128-bit Low-power 32kHz crystal and RC Ultra oscillators Wide supply voltage (1.8 V to 3.6 V) DC/DC buck converter On-chip application Smart applications Bluetooth Phone accessories Mobile Peripherals Computer Remote controls for TV STB, and media systems CE And security alert tags Proximity And fitness sensors Sports- And lifestyle sensors Healthcare Controllers for computers Game And Electronic games Toys Control and data-acquisition Domestic/Industrial RF tags for tracking and social interaction Smart Response system Audience Domestic appliances Intelligent Simple, fast, and secure code development NRF51822 provides developers with a clear application code to isolate the embedded protocol stack. This means that compile, link, run time, and debugging are not caused by mutual dependency. BLE protocol stack has been pre compiled by the Nordic, only to be used independently to compile the application part of the code can be. Protocol stack interface uses asynchronous event driven model to eliminate the dependence on RTOS (real time operating system). Developers can focus their attention on the development and application of. . Highly reusable and easy to transplant Due to the nRF51 series chip pin compatible, can be modified in the case of layout, can be transplanted between BLE/ANT and other technologies. The general hardware structure ensures that the code can be easily reused in the device using nRF51 series chips. .