Free Ship 3pcs/lot BLE 5.1 HLK-B40 Master and slave Bluetooth module can revise UUID

Free Ship 3pcs/lot BLE 5.1 HLK-B40 Master and slave Bluetooth module can revise UUID

Name: Free Ship 3pcs/lot BLE 5.1 HLK-B40 Master and slave Bluetooth module can revise UUID
Brand: MMO Dropship
SKU: 3256802356155168
Price: 33.9 VND
Availability: InStock
Rating: 4.9 (84 reviews)

Code: TD-3256802356155168 1 order

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$ 33.9

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Description
Shipping & Returns

Brand Name:	bibikoo
Certification:	CE
Certification:	FCC
Origin:	CN(Origin)
Model Number:	HLK-B40
Manufacturer:	Hi Link
Baud rate:	up to 921600
Module Size:	149.52mm
Wide working voltage:	1.8-4.2V
Standard:	BLE5.1
Chipset:	FR8016HA
Frimware Upgrade:	Serial ports/OTA Uograde

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Free Ship 3pcs/lot BLE 5.1 HLK-B40 Master and slave Bluetooth module can revise UUID

HLK-B40 is a kind of Master-Slave serial port transmission Bluetooth module based on

BLE5.1

All kinds of devices with serial port can use Bluetooth wireless to send and receive data simply and quickly through this module.

The basic functions and features are as follows:

Main frequency 48MHz, 32-bit ARM Cortex M3 core

Fast and stable Bluetooth-serial port transmission,serial port rate up to

921600



Master-to-one Bluetooth

, which can be set to host orslave mode,supports binding encryption

Bluetooth from the machine mode can be connected by

up to 20 host devices

at the same time, supporting custom broadcast data

Based on BLE5.1, it is faster and has a longer transmission distance and can

reach 40 to 100 m in an open environment

Supportslow-power modes,

sleep currents of up to6 μA

and custom connection and broadcast intervals

Bluetooth transmit power can be adjusted up to 10dBm and receives up to -95dBm

Support for OTA Bluetooth wireless upgrade module firmware, wireless configuration module parameters

The default on-board high-quality ceramic antenna increases the transmission distance and includes an external antenna

Built-in Watchdog, Long and reliable operation time

Ultrasmall size

14mm×9.5mm×2mm

Wide operating voltage 1.8 to 4.2V,

typical 3.3V

Rich output pins (UART, I2C, SPI, up to 15 GPIOs, up to 4 ADCs, up to 6 PWMs) provide flexible and in-depth hardware and software custom development services

Packing List :

B40 Module * 5

The principle of transmission

HLK-B40 is a cost-effective Master-slave integrated Bluetooth transparent transmission module introduced by Hi-Link, designed to enable only serial user devices to quickly and easily use Bluetooth for wireless transmission, with the help of serial transmission, users do not need to care about complex Bluetooth protocol stack and RFcircuit, just a simple serial port transmission, data can be transmitted directly on the Bluetooth wireless connection.

Transmission is short for transparent transmission, means the role of the module is equivalent to the serial port and Bluetooth connection between the establishment of a transparent transmission pipeline, the user in the serial port issued data will be forwarded to the device connected through Bluetooth, data sent through Bluetooth will also be forwarded to the serial port, the entire process users do not need to care about complex Bluetooth connection how to achieve, HLK-B40 module from beginning to end is only the original data transfer and transmission of data without the user's convenience and transmission.

The principle schematic of the Bluetooth-serial port transmission function is as follows :

This module can be connected by multiple Bluetooth host devices when acting as a Bluetooth accessor, including other B40 modules as hosts.

Under a multi-to-one connection, the data received from the serial port of the machine module is forwarded via Bluetooth to each connected host device, each Data from connected host devices is also forwarded to the serial port from the machine module.

Description of the input and output pin functions

Contact me please if you need the full document of it .

DELIVERY ESTIMATE

We processes orders between Monday and Friday. Orders will be processed within 5 business days of ordering and shipped the next day after the processing day. Please note that we don't ship on weekends.

We deliver your orders in 15-20 working days (free shipping), International orders delivery is subjected to the policy of third party courier service, and differs from country to country basis.

Due to the Covid-19 pandemic, you may experience delivery delays but we are committed to getting your order to you as soon as possible.

Note: Please ensure all delivery information is correct. If there is incorrect and/or missing information, we may be required to contact you to update the delivery information, which may cause delays in delivering your order. Delays may also occur as a result of customs clearance.

RETURN POLICY

At MMO-Dropship we strive to make our customers 100% satisfied with the product they’ve purchased from us. If you are experiencing any shipping or products issues, and you’re feeling frustrated, then please send us an email and our team will assist you right away.

We have a 7-day return policy, which means you have 7 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at [email protected]. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at [email protected].

DAMAGED ITEM AND LOW QUALITY

For the fastest resolution, please include a photograph demonstrating the poor quality or the damaged area of the item. The most optimal pictures are on a flat surface, with the tag and error clearly displayed.

We will use this information to help you with your order, and eliminate errors in future.

REFUND POLICY

If you feel the product that you’ve purchased does not show the requirements that you initially had in mind, then you do have the option to request a refund.

Here are the circumstances in which refunds will be granted:

You can get a refund if:

You aren't happy with your order: You’ve purchased your MMO-Dropship products in the last 7 days and want to return them, we will process full refund as soon as possible when we receive the items from you

The product you’ve purchased is completely non-functional
You did not receive your product within 60 business days or 90 business days (South America) of purchase

Please note that refunds can take 3-5 business days to return in your account.

You can always contact us for any return question at [email protected].