Bluetooth Module BLE4.2 SPP3.0 2.4GHz Serial To Dual-Mode Low Power Consumption EBYTE E104-BT40 Support AT Command Wireless RF Module

E104-BT40 module is a serial to dual-mode Bluetooth slave module based on Bluetooth 4.2 + 3.0 version, namely low power consumption Bluetooth BLE and classic Bluetooth SPP Profile, which can freely switch between BLE and Classic Bluetooth, working at 2.4GHz. The E104-BT40 module uses general AT commands to set parameters, and the operation is simple and fast. The module only supports the Bluetooth slave role. Through this module, traditional low-end serial devices or MCU-controlled devices can performwirelessdatatransmission. It is a low cost, simple and reliable data transmission module. Features ：Bluetooth Specification V4.2 +3.0 protocol available；AT command configuration available; Support BLE；SPP 3.0； GPIO input / output; 2-way PWM outputs; 249 bytes of serial buffer; Effective communication distance over 30 meters; Global license-free ISM 2.4GHz frequency band; 1 ~ 2Mbps air rate; Built-in PCB on board antenna, no external antenna required. Application：Bluetooth wireless data transmission; Wireless meter reading and wireless sensing; Smart home, industrial control;  Industrial remote control and telemetry; Smart buildings, smart construction;  Automatic data collection;  Health sensor; Brand Name:EBYTEOrigin:Mainland ChinaCondition:NewType:Drive ICModel Number:E104-BT40is_customized:YesWorking frequency:2.4GMHzTransmitting power:3 dBmReference distance:30mSize:21 *13 mmAntenna:PCBCommunication interface:UARTPackage:SMDType:Bluetooth Module RF Parameter Value Remark Working frequency 2400 ~2480 MHz - Transmitting power 3 dBm - Receiving sensitivity -96 dBm - Reference distance 30m - Hardware Parameter Value Remark Size 21 *13 mm - Antenna PCB  50Ω Impedance Communication interface UART    All I / Os of the microcontroller are exported, see the chip manual for details Package SMD - Electronic parameter Min Typ Max Unit Remarks Operating voltage 2.5 3.3 3.6 V ≥3.3 V ensures output power Communication level - 3.3 - V For 5VTTL, it may be at risk of burningdown Idle state 3.9 - 6 mA - BLE connection - 3.26 9.2 mA - SPP connection - 6.78 9.2 mA - Operating temperature -40 - +85 ℃ -   Company Profile Ebyte Company Profile Development Testin PCB_E104_BT40 Xcom