Dual-mode Bluetooth to TTL serial, master/slave-in-one
​Overview: Dual-mode Bluetooth is a wireless module that allows bi-directional transparent data transfer between the TTL serial and Bluetooth devices. It is designed to be master/slave-in-one, also, it supports iBeacon. You can easily operate the module via AT commands, like: set baud rate, change broadcast name, and IO control, etc.
Features: Dual-mode Bluetooth, completely compatible with iOS and/or Android devices; Works as a full-duplex serial pipe after pairing, requires no Bluetooth protocol knowledge; Fully configurable via AT commands XBee interface; Comes with iOS and Android demo code, like: mobile robot remote control, data acquisition, device status monitoring, etc.
Specifications: Bluetooth version: Bluetooth Specification V4.0 EDR and BLE; Frequency range: 2.4GHz ISM; Modulation: GFSK (Gaussian Frequency Shift Keying); Communication distance: SPP 50m, BLE 100m (ideal condition); Sensitivity: ≤-84dBm (0.1% BER)Antenna: onboard antenna; Transfer speed: about 40% serial speed for SPP, about 30% serial speed for BLE; Packet length: 60 bytes for SPP, 20 bytes for BLE; Serial buffer: 512 bytes; EDR service: L2CAP, SDP, RFCOMM, SPP; BLE service: ATT, GATT, LE Service: 0xFFE0, Char: 0xFFE1; Power consumption: SPP: avg 13mABLE: avg 9.5mA; Standard: 10~17mA; Power supply: 3.3V 50mA; Operating temperature: –5°C~80°C; Applications: Wearable devices; Bluetooth intelligent application; Smart home appliances; Industry control; Data acquisition system