3pcs NRF51822 Beacon Module Bluetooth RSSI Positioning Module Geekcreit for Arduino - products that work with official A

Introduction and features 1 Easy and fast customization of extremely low cost enclosures 2 UUID Major Minor and other parameters can be changed according to customer needs 3 Beacon barcode for easy identification 4 Based on TIs NorDic51822 CR2032 low power Bluetooth module 5 Support IOS7 0 Android 4 3 and above 6 Receiving 30M 7 Battery life is 6 months to one year 8 Working voltage 1 8 3 6VTest conditions Ta 25C VCC 3 3V Technical indicatorsParameterRemarksOperating VoltageDC 2V to 3 6V Working frequency2402 2480MHz Number of channels40 ModulationGFSK Output Power 20dBm 4 dBmProgrammable preparationEmission current10 5mAPOWER is 0dBm related to powerReceiving sensitivity 91dBmDirty transmitter modeReceiving current13mA Stand by current2 7uAStop broadcastingTransmission rate1Mbps Chip flash256KB Chip RAM16KB Antenna formPCB antenna Communication distance30m0dBm rStorage temperature 40 125C Operating temperature 20 75C Dimensions24mm 4 5mm Note 1 The supply voltage of the module affects the transmit power Within the operating voltage the lower the voltage the smaller the transmit power Remarks 2 When the operating temperature of the module changes the center frequency will change as long as it does not exceed the operating temperature it will not affect the application 3 The antenna has a great influence on the communication distance Please install the module correctly 4 How the module is installed affects the communication dist