Implement standard Bluetooth SIGV2.1+EDR, Bluetooth serial port configuration file (SPP), interface RS232, communication speeds of 11200, 2400, 4800, 9600, 19200, 38400, 57600bps, communication speeds of 2115200, 230400, 460800, 21600, 1382400bps, modulation method of 2.4GISM direct sequence hopping (FHSS), communication distance of 15 meters in secondary open space, transmission power of 4dBm, reception sensitivity of -79dBm, working voltage of 5V, Working current/sleep current 40mA/1.6mA (typical value), working environment temperature 10-50 degrees Celsius, product weight 17.5g, product features and functions: This product is an RS-232 interface Bluetooth adapter embedded in the Bluetooth protocol stack. The main function is to replace traditional serial cable connections, and users do not need to make too many changes to the original wired connection scheme. You can quickly upgrade the original serial cable connection to a wireless serial Bluetooth connection. It provides a simple, fast, secure, and reliable wireless solution for applications in industries, healthcare, commerce, and other fields that do not require excessive connectivity. The Bluetooth communication protocol is embedded internally, so there is no need to install additional drivers. Can be used on Windows systems or non graphical operating systems such as DOS and Linux. Users do not need to have professional knowledge of Bluetooth communication technology, and for them, ordinary serial communication is no different from traditional serial cable connections. Communication program developers only need to write serial communication code. Adopting CSR Bluetooth chips that support the Bluetooth 2.1 standard, enhanced bit error rate performance and automatic frequency hopping technology ensure efficient and secure communication, and have stronger anti-interference ability to ensure communication stability and reliability. Two different baud rates from 1200bps to 1382400bps can be set through the AT command (default values are 9600, n, 81), and personalized Bluetooth names can also be set for the device. Supports Bluetooth Serial Port Profile (SPP), which can connect and communicate with devices that support Bluetooth SPP services, such as laptops with Bluetooth functionality, desktop computers equipped with Bluetooth adapters, handheld Bluetooth PDAs, Bluetooth GPS, etc. The transmission power meets the Bluetooth Class2 standard, and the built-in high sensitivity PCB printed antenna can stably communicate over a distance of up to 15 meters, allowing wireless data transmission through walls. The RS232 serial Bluetooth adapter needs to be powered by the MiniUSB interface on the adapter. Equipped with a RESET reset button, it can delete paired device information saved in the adapter and pair with a new Bluetooth device again.