A 3.3V powered Bluetooth 4.0 Low Energy module designed for reliable wireless connectivity in 3.3V systems. Key specifications Module supply voltage: DC 3.3V Operating temperature: 25 to 75 C Wireless technology: Bluetooth 4.0 Low Energy (BLE) Power profile: lowpower Bluetooth operation for energy efficiency Why this module is useful Enables wireless communication with BLE capable devices while running on a 3.3V supply Suitable for environments requiring operation across a wide temperature range Provides a lowpower Bluetooth option to help extend battery life in portable applications Simple integration with 3.3V microcontrollers and nearby BLE devices Compatibility and performance highlights Bluetooth 4.0 Low Energy compatibility for connection with modern BLEenabled devices Designed to operate reliably within 25 to 75 C, expanding use in varied settings 23 practical use scenarios Smart home or building automation sensor: works with a 3.3V microcontroller to transmit sensor data to a BLE gateway or smartphone, enabling remote monitoring. Portable wearable or handheld accessory: leverages lowpower BLE to maintain wireless connectivity with a mobile app while powered from a 3.3V supply. Industrial monitoring device: deployed in environments that experience temperature variation, using BLE to send status updates or alerts to a centralized controller.