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A Pair of DX-BT27-A Bluetooth Module Long Range Up to 420m BLE 5.1 Wireless Bluetooth TF Transceiver Module for Arduino Compatible with Android/iOS, Including Master and Slave

Feature：This is the paired version of the BT27-A master-slave module, which includes one master bluetooth module and one slave bluetooth module. It has been paired and can be directly connected after being powered on. Note: The master module can only be connected with the slave modules sold in our store, and cannot be connected with any other model Bluetooth module. | Multiple Connection Methods：1. Can search connection Manually; 2. With MAC address code, it can scan QR code for connection. Compatible with Android/iOS. Please note that the slave module cannot communicate directly with the computer. It requires the master module to connect to the computer and use the computer serial port assistant to communicate with the slave module. | Long Range：The connection distance between the BT27-A slave and the mobile phone can reach 150 meters, and the connection distance between the BT27-A master and the BT27-A slave can reach 420 meters(This distance data is the result of testing in an unobstructed and open area. If it is not within the visible range during use, please use the measured results as the main one.). Module size 37.5(L) x 15.7(W) x 4.0(H) mm.Bluetooth BLE 5.1 protocol. DIALOG 14531 main control chip+PA amplifier. Transmission rate 10K Bytes/s. Operating temperature - 40 +85 ℃. Supports UART hardware interfaces. | Wide Application：You can quickly add Bluetooth functionality to your Arduino project, and then you can use an Android/iOS phone to control some small tools. This module is mainly used for wireless transmission of short-range data, such as Bluetooth wireless data transmission, smart home, intelligent educational devices, device monitoring and wireless control, measurement and monitoring systems, industrial sensors and controls, tracking and positioning. | Customer Service：Our products have multi-layer packaging protection: needle guiding sponge, electrostatic bag, packaging bag. It can maximally prevent the product from being damaged during transportation. Out of the box, plug and play. In addition, we provide English technical manual electronic document for customer research. If you encounter any issues, please contact us, and we will resolve your issues within 24 hours.

Manufacturer: PDDAXLQUE

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₹1,605.91

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Imported from USA to INDIA

Use 220V to 110V Adapter for Electronic appliances

Product Pramas:

Module model: DX-BT27
DIALOG 14531 main control chip+PA amplifier
Bluetooth specifications: BLE 5.1
Module size: 37.5(L) x 15.7(W) x 4.0(H) mm
Operating Voltage: 3.3V/5V
Hardware interface: UART

Power Supply Stability Requirements： It is necessary to ensure that the input voltage is not lower than 2.8V. The following figure shows the voltage drop of VBAT during radio frequency burst transmission.In order to reduce the voltage drop, it is recommended to reserve 2 (22uF, 0.1uF) chip multilayer ceramic capacitors (MLCC) with the best ESR performance for VBAT, and the capacitors should be placed close to the VBAT pin.

Power Down Requirements：Since the working current of the chip of this module is very low, when the power is disconnected, if the IO port of the peripheral MCU has a weak current supplying the module, the module is likely to be in an abnormal working state at this time, so after disconnecting the power of the module, the MCU is connected to the module All IO ports must be configured as pull-down.

Hardware Design Layout Recommendations：The DX-BT27 Bluetooth module works in the 2.4G wireless frequency band and uses an on-board antenna. The standing wave ratio (VSWR) and efficiency of the antenna depend on the placement of the patch. Various factors should be avoided as far as possible to the wireless signal transmission and reception.

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