Logic level conversion circuit; RF-BM-S01 low power consumption Bluetooth module; Default baud rate: 9600 8N1; Soc: CC2540; 2.4GHz ISM band; GFSK; 40 channels, 2 MHz, 3 fixed broadcast channels, 37 adaptive auto frequency hopping data channels; Physical layer Bluetooth RF dual mode device; Output power adjustment (-23dBm~4dBm); High gain receiving sensitivity.

Bridge / direct-driven mode: after the Module is started, APP smart phone will scan and pair it, automatically enters transparent serial mode after device is paired and connected.

Widely used in instrument and meter, logical tracing, health and medical treatment, smart home, sports measurement, car electronic and toy, etc.

Main features: Easy to use; UART design; Support bridge direct-driven mode simultaneously (no need for extra CPU); 20ms connection interval (default), quick to connect; Support AT instruction, to modify the baud rate of the serial port, gain MAC address and modify module name; Support AT instruction, to adjust the Bluetooth connection interval and control the forwarding rate (dynamic power consumption adjustment); Support APP; IO expansion; 2 channel ADC input (14 bit); 4 channel PWM (120Hz) output; RSSI successive acquisition, auto read and notification to APP (used in anti-lost alarm); Power indicator / alert; Support anti-hajack password setup, modification and restoration; Ultra-low power consumption standby mode; Standby current: 0.4uA.