NRF51822 BLE4 2.4GHz Bluetooth 4.0 Module

NRF51822 BLE4 2.4GHz Bluetooth 4.0 Module is a compact, high-performance wireless communication module designed for low-power Bluetooth Low Energy (BLE) applications. Powered by Nordic Semiconductor’s nRF51822 SoC, this module integrates a 32-bit ARM Cortex-M0 processor, RF transceiver, and BLE protocol stack in a single solution. It is ideal for IoT devices, wearable electronics, wireless sensors, smart home systems, and embedded applications where energy efficiency and reliable communication are critical.

Operating in the globally available 2.4GHz ISM band, the NRF51822 module supports Bluetooth 4.0 / BLE4 standards, ensuring compatibility with smartphones, tablets, and BLE-enabled devices. Its ultra-low power consumption, small form factor, and flexible interfaces make it a preferred choice for developers, hobbyists, and manufacturers looking to implement wireless connectivity in compact designs.

Key Features of NRF51822 BLE4 Bluetooth Module

• Bluetooth 4.0 / BLE4 compliant for low-energy wireless communication

• 2.4GHz ISM band operation with robust RF performance

• ARM Cortex-M0 32-bit microcontroller for application processing

• Ultra-low power consumption, ideal for battery-powered devices

• Integrated on-chip BLE protocol stack

• Compact and lightweight module design

• Supports UART, SPI, I2C, PWM, ADC, and GPIO interfaces

• Fast data transmission with low latency

• High receiver sensitivity and stable RF output power

• Supports over-the-air (OTA) firmware updates

The NRF51822 module enables developers to build complete BLE applications without the need for external controllers, reducing system complexity and development time.

Technical Specifications of NRF51822 BLE4 Bluetooth Module

• Chipset: Nordic Semiconductor nRF51822

• Bluetooth Standard: Bluetooth 4.0 / BLE4

• Frequency Band: 2.4GHz ISM (2400–2483.5MHz)

• Microcontroller: 32-bit ARM Cortex-M0

• Flash Memory: Up to 256KB (variant dependent)

• RAM: Up to 32KB

• Operating Voltage: 1.8V – 3.6V

• Transmission Power: Programmable up to +4 dBm

• Receiver Sensitivity: –93 dBm

• Interfaces: UART, SPI, I2C (TWI), ADC, PWM, GPIO

• Operating Temperature: –40°C to +85°C

• Antenna: On-board PCB antenna / External antenna support (variant dependent)

• Dimensions: Compact SMD module for easy PCB mounting

Applications of NRF51822 BLE4 Module

The NRF51822 BLE4 2.4GHz Bluetooth Module is widely used across industries due to its versatility and low power design. Typical applications include:

• Internet of Things (IoT) devices

• Wearable electronics such as fitness bands and health monitors

• Wireless sensor networks

• Smart home and building automation systems

• Bluetooth beacons and proximity sensors

• Medical and healthcare devices

• Industrial monitoring and control systems

• Wireless remote controls and HID devices

• Consumer electronics and smart gadgets

Its compatibility with mobile operating systems like Android and iOS makes it ideal for smartphone-controlled applications.

Why Choose the NRF51822 BLE4 Bluetooth Module?

The NRF51822 BLE4 module offers an excellent balance of performance, power efficiency, and ease of integration. With strong community support, extensive documentation, and proven reliability, it reduces development risks and speeds up time-to-market. Whether you are developing a prototype or a production-ready product, this module provides a cost-effective and scalable BLE solution.

If you are looking for a reliable Bluetooth 4.0 low-energy module for IoT and embedded systems, the NRF51822 BLE4 2.4GHz Bluetooth Module is a smart and future-ready choice.