DF-BluetoothV3 Bluetooth module uses a unique double-board design, it is beautiful and aim to prevent electrostatic damage to the module. It is designed to have 2 DC power input, wide voltage supply (3.5V ~ 8V) and 3.3V power supply, suitable for various applications. STATE LINK is indicated by a clear and bright LED which is used to display module status and connection status (STATE state: Search state (high 104ms 342ms 2.9Hz cycle flicker) connection status (high 104ms period 2s 0.5Hz flashing), LINK state: paired ). It has build-in on-board antenna which provides high quality signals.

DIP switch is designed to set the module status, LED Off to turn off the LINK light to enter power saving mode, AT Mode allows the module to enter AT command mode, AT commands can modify the baud rate and the master and slave mode.

This module can also be used as a pair which provides a transparent serial data communication.

JavaScript display

		Bluetooth 2.0 Module V3 For Arduino	Bluetooth 2.0 Bee Module For Arduino	Bluno Link – A USB Bluetooth 4.0 (BLE) Dongle	Bluetooth Adapter Mini
SKU	TEL0073	TEL0026	TEL0023	TEL0087	TEL0002
BLE Chip	TI CC2540	CSR BC417143	CSR BC417143	TI CC2540	—
Frequency	2.4GHz	2.4 ~ 2.48GHz unlicensed ISM band	2.4 ~ 2.48GHz unlicensed ISM band	2.4GHz	2.4 ~ 2.48GHz FHSS
Transfer rate	1Mbps GFSK	Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps/1Mbps	Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps/1Mbps	1Mbps GFSK	3Mbps
BLE protocol	V4.0	V2.0 + EDR	V2.0 + EDR	V4.0	V2.0
Modulation	GFSK	GFSK	GFSK	GFSK	FHSS
Power consumption	10.6mA average, ready mode: 8.7mA	—	—	10.6mA average, ready mode: 8.7mA	—
Sensitivity	-93dBm	≤-84dBm	≤-84dBm	-93dBm	≤-84dBm
Working Voltage	3.3V	+3.5 V ~ +8 V DC and 3.3V DC/50mA	3.3V	3.3V	—
Operating temperature	-40 ℃ ~ +85 ℃	-20 ℃ ~ +55 ℃	-20 ℃ ~ +55 ℃	-10 ℃ ~ +85 ℃	-20℃ ~ +55℃
Transmission distance	30m	20 ~ 30m	20 ~ 30m	10 ~ 20m	<10m
Dimension	32*22mm	402013mm	32249mm	32mm * 16mm	20168mm
Weight (g)	10	10	12	10	10
AT command to debug the BLE	√	√	√	√	—
master-salve machine switch	√	√	√	√	—
Transparent transmission	√	√	√	√	—
Wireless programming	√ (Available for Bluno series)	—	—	√	—
iBeacons	√	—	—	—	—
BLE HID	√	√	√	√	√
Mobile App Control	√	√	√	—	—
Key Features	support Android and IOS applications,open source code,suitable for secondary development by the user	Compatible with APC220 communication interface, can be directly used in I/O Expansion Shield, Romeo, XBoard and etc,.	It can be plugged into the Arduino controller using the XBEE base for Bluetooth wireless control.	Standard USB interface. Support for firmware update via USB. Install Arduino UNO USB driver, default host mode.	USB2.0 standard interface. supports the native Windows Bluetooth stack.

This module has been tested and compatible with most Bluetooth adapter in the market (Bluetooth dongle, including laptops and mobile phones).
This module has been tested and compatible with Android Phones.

Specification

The Bluetooth chip: CSR BC417143
Bluetooth protocol: Bluetooth Specification v2.0 + EDR
USB Protocol: USB v1.1/2.0
Operating frequency: 2.4 ~ 2.48GHz unlicensed ISM band
Modulation: GFSK (Gaussian Frequency Shift Keying)
Transmit Power: ≤ 4dBm, Class 2
Transmission distance: 20 ~ 30m in free space
Sensitivity: ≤-84dBm at 0.1% BER
Transfer rate: Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps/1Mbps
Safety features: Authentication and encryption
Support profiles: Bluetooth serial port
Serial port baud rate: 4800 ~ 1382400 / N / 8 / 1 default: 9600
LED indicator: STATE state: Search state (high 104ms 342ms 2.9Hz cycle flicker) connection status (high 104ms cycle 2s 0.5Hz flashing), LINK Status: Always after match
Input Voltage: +3.5 V ~ +8 V DC and 3.3V DC/50mA
Working temperature: -20 ℃ ~ +55 ℃
Module Size: 40 × 20 × 13mm(1.6×0.8×0.5”)