NRF51822 Bluetooth BLE4 2.4GHz Wireless Communication Module

NRF51822 Bluetooth BLE4 2.4GHz Wireless Communication Module 

The NRF51822 Bluetooth BLE 4.0 Wireless Communication Module is a compact, low-power 2.4GHz Bluetooth Low Energy (BLE) module based on the Nordic Semiconductor nRF51822 SoC. It is designed for wireless data transmission and IoT applications, supporting BLE 4.0 protocol for fast, reliable, and energy-efficient communication.

The module integrates a microcontroller and Bluetooth radio on a single board, enabling both standalone BLE functionality or as a peripheral for custom embedded systems. It is widely used in wearables, smart home devices, remote sensors, and DIY IoT projects.

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Features

• Wireless Standard: Bluetooth Low Energy (BLE 4.0)
• Operating Frequency: 2.4GHz ISM band
• Built-in Nordic nRF51822 SoC: 32-bit ARM Cortex-M0 MCU
• Flash & RAM: 256KB Flash, 16KB RAM (depending on module variant)
• Low power consumption for battery-operated devices
• Supports both peripheral and central BLE roles
• Integrated PCB antenna or optional external antenna
• Small, compact form factor for easy integration
• Reliable wireless communication over short to medium range (~50–100m)
• Compatible with BLE-enabled smartphones, tablets, and other devices
• Supports GATT, GAP, and standard BLE profiles

Applications

• Wearable devices (fitness trackers, health monitors)
• Smart home products (lights, switches, sensors)
• Wireless sensor networks and IoT applications
• BLE-enabled remote controls
• Data loggers and monitoring systems
• DIY BLE projects and prototyping
• Medical devices and health monitoring systems
• Beacon and proximity detection applications