Question:

All About nRF51822 - ANT, 2.4 GHz SoC, and Bluetooth low energy

An ultra-low power SoC suitable for Bluetooth® 2.4 GHz and Low Energy proprietary wireless applications is the nRF51822. This can be constructed around a system with a 32-bit ARM® CortexTM-M0 CPU, 32/16 KB of RAM, and 256/128 KB of flash. The best part is that 2.4 GHz proprietary protocols like Gazell and Bluetooth Low Energy are compatible with the 2.4 GHz radio.

What's more, this Bluetooth has strong analog and digital peripherals that let it connect directly without using the CPU via the Programming Peripheral Interconnect system. Moreover, GPIOs can be used to create digital interfaces like TWI Master, SPI Master/slave, and UART.

Overview of nRF51 Series SoCs

Source:> Nordic Semiconductor

nRF51822 SoC

This Bluetooth is perfect for single-chip solutions or a connectivity device. It has 16 MHz Cortex-M0 256/128 KB Flash, 32/16 KB RAM, Bluetooth Low Energy, 2.4 GHz Transceiver, +4 dBm TX Power, 128-bit AES CCM, 2 Mbps, 1 Mbps, 250 kbps, 10-bit ADC, UART, SPI, TWI.

Source:> Nordic Semiconductor

nRF51422 SoC

This one is AEC Q100 Grade 2 Bluetooth Low Energy. This device is powered by an auto-grade SoC from Nordic Semiconductor, the nRF51822. AEC-Q100, 10-bit ADC, SPI, UART, +4 dBm TX Power, Bluetooth Low Energy, 2.4 GHz Transceiver, 2 Mbps, 1 Mbps, and 128-bit AES CCM are among its features. It also has 256 KB Flash and 16 KB RAM and 250 kbps speed.

Source:> Nordic Semiconductor

nRF51824 SoC

AEC Q100 Grade 2 Bluetooth Low Energy is this one. Nordic Semiconductor nRF51822, an auto-grade SoC, powers this device. It features an AEC-Q100, 10-bit ADC, SPI, UART, +4 dBm TX Power, 256 KB Flash, 16 KB RAM, 250 kbps, Bluetooth Low Energy, 2.4 GHz Transceiver, 2 Mbps, 1 Mbps, and 128-bit AES CCM.

Soft Device

Supported with nRF51822

S110 Soft Device

This peripheral protocol stack is compatible with the nRF51 Series and is qualified for Bluetooth 4.1 version. Concurrent multi-protocol with 2.4 GHz proprietary protocols is supported, along with Privacy 1.1, Custom UUID support, Security mode 1 - Levels 1, 2, and 3, Configurable ATT Table, and a concurrent link as a peripheral and broadcaster.

S120: Bluetooth 4.1

For the nRF51 Series in S120, the Bluetooth 4.1 version qualifies as a Peripheral protocol stack or Central. It features eight concurrent links as Central with Observer/Peripheral with Broadcaster Custom UUID support, Configurable ATT Table, Privacy 1.1, Security mode 1 - Levels 1, 2, and 3, and Support for concurrent multi-protocol with 2.4 GHz proprietary protocols.

S130: Bluetooth 4.2

This guarantees that the state value you are using is the most recent one.

This Bluetooth 4.2 version Peripheral protocol stack is compatible with the nRF51 Series and is qualified as Central. With eight concurrent links—Central with Observer&Peripheral with Broadcaster, LE Secure Connections, Levels 1, 2, 3, and 4 Custom UUID support, Configurable ATT Table, Support for concurrent multi-protocol with 2.4 GHz proprietary protocols, and Privacy 1.1—it is equipped with Security mode 1.

Applicable SDK

nRF5 SDK

It's a Bluetooth LE development kit with ANT software. With the help of this well-tested and excellent software kit, you can accelerate the development of software for the nRF51 and nRF52 Series SoCs. This will assist you in developing your application by providing a wealth of helpful firmware examples and modules.

Development Kit

Prototype, develop, and evaluate with nRF51822

Source:> Nordic Semiconductor

nRF51 DK

nRF51 is a development kit for the other chip like nRF51 Series SOCs. It has Bluetooth Low Energy, 2.4 GHz, and an ANT proprietary development kit. You can use this to develop apps for the nRF51822, nRF51824 nRF51422, and nRF51802.

Source:> Nordic Semiconductor

nRF51 Dongle

nRF51 Dongle is a USB development dongle with Bluetooth Low Energy, 2.4 GHz, and ANT proprietary. You can develop applications for the nRF51422, nRF51824, and nRF51822 SoCs.