NRF 51822 BLE 4.0 Bluetooth Module

The NRF51822 acts as both the wireless radio and the main brain of your project. It is specifically optimized for low power consumption, allowing devices to run for months or even years on a single coin-cell battery. Key Technical Specifications Core Processor: 32-bit ARM Cortex-M0 with 256KB/128KB Flash and 32KB/16KB RAM. Bluetooth Connectivity: Fully compliant with Bluetooth 4.0 LE (Low Energy) specifications. Multi-Protocol Radio: Supports BLE and proprietary 2.4GHz stacks (like Nordic's Gazell), allowing for flexible wireless networking. Ultra-Low Power: * 600nA @ 3V OFF mode. 9.7mA peak RX, 8mA peak TX (0dBm). Rich Peripherals: Includes 31 GPIOs, ADC, SPI, I2C (TWI), and UART for connecting sensors and displays. Operating Voltage: 1.8V to 3.6V DC, perfect for direct battery integration.