Ble Bluetooth module nrf518/nrf281/nrf528/nrf284 chip scheme comparison

 1．nRF51822 brief introduction

nRF51822 It's a powerful , Highly flexible multi protocol SoC, Very suitable for low-power Bluetooth modules and 2.4GHz Wireless applications . The SoC Is based on ARM Cortex M0 Microprocessor for the kernel , Have 256KB/128KB On the film FLASH Storage space ,32KB/16KB Of RAM Space .2.4G Wireless RF supports low-power Bluetooth module , Compatible with nRF24L Series of Bluetooth module products .

Bluetooth module Internet of things application field ： Mobile Accessories , Wearable devices , Wireless charging monitoring ,PC peripherals , Consumer electronic remote control , Smart home , Smart RF tags , Toys and video games .

 1.1 Chip characteristics

• Single chip , Highly flexible 2.4GHz Multiprotocol devices
• 32 position ARM Cortex M0 CPU kernel
• 256KB/128KB Flash memory +32KB/16KB RAM
• Support low power Bluetooth protocol stack
• Thread safety and runtime protection
• Event driven API Support
• Air link compatibility nRF24L series
• Three rates ：2Mbps/1Mbps/250Kbps
• +4dBm Output power
• -93dBm sensitivity , Bluetooth low power
• Flexible power management system
• Configurable I/O
• Operating temperature range ：-40℃ to +105℃

 2．nRF52810 brief introduction

nRF52810 Is a Bluetooth enabled 5,ANT and 2.4GHz High performance multi protocol SoC. The SoC Provides access to Bluetooth 5 Support for , At the same time, the microprocessor core is ARM Cortex M4, have 192KB Of FLASH and 24KB Of RAM Space , It can provide more support for advanced applications . It performs very well even in low-power applications .

Its application fields ： bluetooth 5 Connecting the processor , Industrial sensors and actuators , Wearable device , Smart home sensor , computer peripherals , Sports and fitness sensors , Intelligent Watch , Interactive games and building automation .

 2.1 Chip characteristics

• Single chip , Highly flexible 2.4 GHz multi-protocol SoC
• 32 position ARM Cortex-M4 processor
• Voltage range ：1.7V to 3.6V
• 192kB Flash memory + 24kB RAM
• Support concurrent Bluetooth low power consumption / ANT Protocol operation
• +4dBm Output power
• -96dBm sensitivity , Bluetooth low power
• Thread safety and runtime protection
• Event driven API Support
• Air link compatibility nRF24L and nRF24AP series
• Two rates ：2Mbps/1Mbps
• Automatic power management system
• Configurable I/O
• 1 Owners / from SPI
• 1 x Two wire interface （I²C）
• UART（RTS / CTS）
• 1 individual PWM（4 Channels ）
• AES HW encryption
• 8 passageway 10/12 position ADC
• Quadrature decoder
• 64 Stage analog comparator
• Real time clock （RTC）
• Digital microphone interface （PDM）

 3．nRF52832 brief introduction

nRF52832 It's a powerful , Highly flexible ultra low power multi protocol SoC, Very suitable for Bluetooth low power consumption （BLE, It used to be smart Bluetooth ）,ANT and 2.4GHz Wireless applications . be based on ARMCortex M4F Designed for core microprocessors SoC, Have 512KB On the film FLASH and 64KBRAM Space .2.4GHz The transceiver supports Bluetooth low power consumption ,ANT And proprietary 2.4GHz Protocol stack , compatible nRF51 series ,nRF24L series .

Its application fields ： The Internet of things （LoT）, Wearable device , Smart home sensor , computer peripherals , Voice controlled intelligent remote controller , Connect health products , Smart watches and building automation .

 3.1 Chip characteristics

• Single chip , Highly flexible 2.4 GHz multi-protocol SoC
• 32 position ARM Cortex-M4F processor
• 1.7V to 3.6V Operating voltage
• 512kB Flash memory + 64kB RAM
• Support concurrent Bluetooth low power consumption / ANT Protocol operation
• +4dBm Output power
• -96dBm sensitivity , Bluetooth low power
• Thread safety and runtime protection
• Event driven API Support
• Air link compatibility nRF24L and nRF24AP series
• Two rates ：2Mbps/1Mbps
• Automatic power management system
• Configurable I/O
• 3 x Lord / from SPI
• 2 x Two wire interface （I²C）
• UART（RTS / CTS）
• 3 x PWM
• AES HW encryption
• 12 position ADC
• Real time clock （RTC）
• Digital microphone interface （PDM）

 4．nRF52840 brief introduction

nRF52840 Is an advanced multi protocol SoC, Ideal for ultra-low power wireless applications .nRF52840 Have one 32 position ARM Cortex M4F Microprocessor of , On tape 1MB Of FLASH and 256KB Of RAM Space .nRF52840 Of 2.4GHz The wireless transceiver supports low-power Bluetooth module ,ANT,802.15.4 and 2.4GHz Proprietary agreement . It supports 2Mbs and 1Mbs Low power Bluetooth and Bluetooth 5 Of 500Kbs and 125Kbs. Support automatic measurement of high resolution RSSI, In order to reduce CPU The load of .

nRF52840 Chip Bluetooth module application field ： Advanced high-performance wear-resistant parts , Wearable security payment , Virtual reality / Augmented reality systems , Smart home sensor network , Smart city sensor network , High performance HID controller , Internet of things sensor network , Intelligent door lock and intelligent lighting network .

 4.1 Chip characteristics

• Advanced single chip 2.4 GHz multi-protocol SoC
• 32 position ARM Cortex-M4F processor
• 1.7V to 5.5V Working voltage
• 1MB Flash memory + 256kB RAM
• bluetooth 5 Support remote and high throughput
• 802.15.4 Radio support
• On film NFC
• PPI Programmable peripheral interconnection
• Automatic power management system
• Configurable I/O
• 48 x GPIO
• 1 x QSPI
• 4 x Lord / from SPI
• 2 x Two wire interface （I²C）
• I²S Interface
• 2 x UART
• 4 x PWM
• USB 2.0 controller
• ARM TrustZone CryptoCell-310 Encryption and security module
• AES 128 position ECB / CCM / AAR Hardware accelerator
• Digital microphone interface （PDM）
• Quadrature decoder
• 12 position ADC
• Low power comparator
• And nRF52,nRF51 and nRF24 Family compatibility

​

5． Scheme comparison

6． Conclusion

In the era of emerging technologies such as the Internet of things , low power consumption （BLE） Bluetooth module devices emerge in endlessly , Many mobile phones now support Bluetooth 5 low power consumption , And it can be seen everywhere around us . Devices such as Huawei Xiaomi's Bluetooth stereo , A code meter and a heart rate meter on a bicycle , Bluetooth module communication system on the car , Bluetooth headsets for normal use , And Bluetooth walkie talkie and so on . Of course, there are more than Bluetooth module chip solutions NORDIC a , Also have TI The company's . In the process of product development , Mature and reliable modules can be directly selected to shorten the R & D cycle and save the development cost . For example, based on CC2640F128 Bluetooth module E72-2G4M05S, At the same time, there is also the above comparison nRF52832 Of chip scheme E73-2G4M04S Specific information can be viewed on Baidu's official website .

In terms of the development scale of wireless communication of the Internet of things , Low power Bluetooth module （BLE） Will be more used in a variety of equipment , Make things connected with each other , Casting the real empire of the Internet of things .