Description
The WT51822-S4AT module integrates the proven Nordic Semiconductor Semiconductor nRF51822 Bluetooth Low Energy SoC, providing a robust, energy-efficient wireless link for embedded systems. Its ARM Cortex-M0 processor manages both the BLE protocol stack and user application code within the 256KB Flash memory, enabling standalone operation without an external host MCU in many scenarios.
Designed for minimal power draw, the module supports advanced BLE features for IoT deployments, including peripheral and broadcaster roles. The onboard PCB antenna offers a reliable connection, while the provision for an external antenna allows system designers to optimize for range or specific enclosure requirements. The UART interface operates at TTL levels, providing a straightforward serial pass-through for data, AT commands, or firmware updates.
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