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KEYES HM-10 Bluetooth 4.0 Serial Port Module w/ Logic Level Translator
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.