Features:

• This small size Bluetooth 4.0 transceiver module allows your device communicate with IOS Android.
• It is easy to use and completely encapsulated.
• You can set it as slave or master.
• You can use AT command set the baud rate.
• Ultra-low standby power consumption 90uA-400uA, built in PCB antenna.

Specifications:

• Input Voltage: DC 3.3V/5V
• .Built-In Level Switch Function:

   If use 5.0V MCU to make communications with Bluetooth module, 5.0V power port supply power, RX TX logic level 5V.

   If use 3.3V MCU to make communications with Bluetooth module, 3.3V power port supply power, RX TX logic level 3.3V.
• RX: Bluetooth module serial receiving port connect with MCU TXD
• TX: Bluetooth module serial transmitting port connect with MCU RXD
• GND: ground port power negative
• 3.3V: power port 3.3V power
• 5V: power port 5V power
• Size: 37 x 16 x 2mm
• Net Weight: 4g

Package includes:

• 1 x CC2541 HM-10 BLE Bluetooth 4.0 Wireless Module