Small Size PCB Bluetooth Module Development

时间： 2022-05-18 来源：SKYLAB

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Small size PCB Bluetooth Module transmitting data between multiple digital devices is generally not a problem as long as you have the right cable to connect them. However, another method by which transferring images, videos and audio files becomes child's play.

What is Bluetooth and what is it for?

The term Bluetooth indicates a network technology that has been elevated to an industry standard for radio communication by the IEEE 802.15.1 working group of the US Institute of Electrical and Electronics Engineers.

Small size PCB Bluetooth module uses for point-to-point wireless, voice and data connection between two separate digital devices. The main objective of the technology is to replace, or make completely obsolete, the connections with wires, particularly advantageous for mobile devices such as smartphones and tablets.

How virtual connection establishes between devices

"Without connection" means that the transmission takes place immediately, even if the recipient has not signaled his willingness to receive the data packet. In the case of a "connect" procedure, however, it’s before carrying out the actual data transfer. A virtual connection establishes between the two communicating devices.

However, compared to the other technologies mentioned, small size PCB Bluetooth module achieves lower transmission speeds. So, sending larger data packets can take longer. It is for the transmission of single files and less complex uses. However, Bluetooth is undoubtedly the ideal solution.

Why does Bluetooth exist?

The invention of Bluetooth is undoubtedly attributable to the widespread problem of cables: since the 1980s there have been several attempts to replace conventional transmission technologies with wires with wireless alternatives.

One promising candidate was Infrared technology, which uses for example to connect computers and printers. However, the small size PCB Bluetooth module relatively high consumption of electricity and the needs to establish. It maintains that "visual contact" between the two communicating devices has prevented this technology from becoming established.

What Bluetooth versions are there?

Later, in the 1990s, a consortium of electronics firms Ericsson, IBM, Intel, Nokia and Toshiba create the Bluetooth Special Interest Group (for short: Bluetooth SIG), which aim to develop its own technology.

The Bluetooth SIG group, founded in September 1998, is today a non-profit organization made up of approx...

Any business that develops and manufactures small-size PCB Bluetooth module-enabled devices are required to join the organization. The most important promoters of the SIG are currently Apple, Ericsson, Lenovo, Nokia, Toshiba, Intel and Microsoft.

How iconic Bluetooth symbol is made up?

The fact that the two companies, Ericsson and Nokia, both come from Scandinavia, was certainly decisive in the choice of the name: Harald Blåtand, in English "blue tooth.

It was the Danish Viking king who succeeds, in the 10th century, to unify the enemy tribes of Norway and Denmark into a single kingdom? The iconic small-size PCB Bluetooth module symbol is made up of the ancient Germanic runes ᚼ and ᛒ, the initials of Harald Blåtand (HB).

How does Bluetooth work?

Bluetooth is the result of cooperation between different parties. The basic radio procedures are essentially attributable to the work of Dutch professor Jaap Haartsen and Swede Sven Mattisson both employed at the Internet and mobile network firm Ericsson.

Other aspects of Bluetooth are largely the work of the Intel and Nokia technology groups. We explain the technical details.

How Bluetooth chip work?

For a digital device to become “small size PCB Bluetooth module compatible", it must have specific data transfer control software. A particular Bluetooth chip that has a transmitter and receiver unit installs in the hardware components.

Popular manufacturers of these chips include Atheros, Nordic Semiconductor, and Toshiba. You can also connect a Bluetooth adapter to a device's USB interface to take advantage of this feature.

How does Bluetooth connect?

The small size PCB Bluetooth module frequency falls into the unlicensed ISM band in the 2.402 GHz to 2.480 GHz range. Compatible devices that comply with the Bluetooth SIG standards can, as Short Range Devices (SRD), operate without restrictions worldwide in this frequency band. Each device, to identify itself as such, has an individual 48-bit MAC address.

The ISM band includes frequency bands used by high-frequency equipment from industry, and science, in most cases, free for use.

What types of devices is Bluetooth used for?

A connection can initiate by any device that assumes the role of “Master” ("master") versus a " Slave " ("slave", ie the connected devices), creating a so-called " ble " (a Bluetooth network). This remains active until the Master deactivates the Bluetooth function in your system.

The devices that want to connect to a small size PCB Bluetooth module "listen" in scan mode, at intervals of 2.56 seconds, the signal of the Master. The connection is usually established within 1.28 seconds. Connecting two or more devices via Bluetooth is also called “pairing ".

How safe is using Bluetooth?

In practice, it is necessary that the distance between the participants of a BLE reduces and that the small size PCB Bluetooth module function of the respective device activates. Activation takes place, depending on the device, via specific software, a checkbox, or a button, mare with the Bluetooth symbol.

The connection must then authorize by means of a PIN (often with four digits) which displays on the screen of the Slave device or is shown in the respective manual.

This login procedure intends to ensure security from third parties and should generally only perform once. The "paired" device saves in a list and automatically connects as soon as it comes within range of the ble, as long as Bluetooth activates.

The Bluetooth network (BLE)

The small size PCB Bluetooth module consists of up to eight active Bluetooth devices. The energy-saving standby or PARK mode also allows you to set up BLEs with up to 200 devices that can activate on demand. A Bluetooth device can participate simultaneously in several BLEs as a Slave, but only in one as a Master.

Up to ten BLEs form a so-called scatter net, all devices within this network can come into contact with each other; however the data transmission rate affects.

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本文由翊翊所思转载自SKYLAB，原文标题为:Small Size PCB Bluetooth Module Development，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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目录- Company and Product Profile Rail-Mounted Terminal Block Systems Device Terminal Blocks and Installation Connectors Pluggable Connectors PCB Terminal Blocks WINSTA® Pluggable Connection System Automation Technology Power Supplies Interface Electronic Current and Energy Measurement Technology Accessories for Automation Technology and Interface Electronic Marking Systems, Tools, Measurement Devices and Mounting Accessories Technical Section Index

型号- 741-410,285-1171,706-2300/200-300,285-1175,285-1178,285-1177,726-221,2002-1311/1000-410,288-413,750-815/325-000,2002-1311/1000-411,286-803,288-412,288-415,288-414,2016-1307,2016-1304,2016-1302,750-460,2016-1301,750-461,750-464,750-463,285-1169,750-466,750-465,750-468,750-467,236-402/334-604,750-469,285-1185,2759-101/1110-4000,285-1184,285-1187,741-402,286-813,721-162/003-000,286-815,721-162/100-000,745-502/006-000,286-809,232-732/031-000,294-5113,294-5114,750-451,280-562/281-411,286-805,750-450,750-453,286-807,726-222,750-452,750-455,750-454,750-457,750-456,750-459,2091-1302,750-458,757-343,2060-1852/998-404,211-504/000-002,286-307/004-000,2091-1308,286-826,288-435,280-562/281-420,286-825,288-437,286-822,750-480,294-5123,294-5124,750-482,2020-202,286-817,750-484,750-483,286-819,750-485,285-1161,734-242/105-604,231-444/040-000,2231-302/026-000,285-1164,285-1167,286-834,286-831,286-830,286-833,286-832,288-418,750-470,750-473,750-472,280-562/281-434,750-475,279-402,750-474,750-477,2091-1328,750-476,750-479,750-478,281-532,281-530,2091-1322,232-572/007-000,281-531,757-363,750-418,738 SERIES,2002-1674/401-000,739-3202,2009 SERIES,704-2044,862-1694,2734-102/031-000,862-1693,750-466/025-000,756-3106/040-200,280-301,280-302,2020-1401,280-303,280-304,280-305,210-334,280-306,210-335,231-876/001-000,210-332,280-308,750-422,210-333,280-309,750-421,750-424,210-331,750-423,2020-1407,750-425,281-613/281-417,750-428,750-427,2020-1404,750-408,281-613/281-418,750-407,235-101/330-000,750-409,739-3212,750-636/000-800,750-508/040-000,279-422,280-312,280-313,280-314,280-315,2020-215,210-345,704-2054,280-319,750-411,750-410,757-383,750-412,750-415,750-414,855-801/2000-1001,2000-2209,727 SERIES,2000-2204,2000-2203,2000-2202,704-2024,2000-2201,2000-2208,232-324/026-000,2000-2207,787 SERIES,2231-302/008-000,279-432,279-433,2091-1352,2000-2247/099-000,734-442/001-000,750-467/000-200,750-8101/025-000,734-362/008-000,750-427/040-000,2091-1362,750-431,750-430,750-433,750-432,750-435,855-305/200-501,750-437,279-440,750-436,750-439,750-438,289-614,231-2116/026-000,289-613,289-612,289-611,704-2003,734-332/018-000,704-2004,862-1652,294-8215,294-8213,855-9300/2000-000,211-502,211-503,211-504,211-505,211-500,211-501,294-8224,294-8225,750-461/000-200,2016-1391,2016-1392,284-339,767-1301,756-1301/060-020,294-8235,2022-2234/999-953,855-301/150-501,284-328,767-1311,2231-102/102-000,284-325,862-1662,734-520/037-000,258-5030,289-619,289-618,713-1418/107-000,289-617,289-616,289-615,732-122/026-000,231-102/031-000,2092-3355,2059-303/998-403,2092-3352,258-5000,862-1603,862-1605,862-1604,281-503,2002-191,2002-192,258-5009,2002-194,258-5008,258-5007,258-5006,258-5005,722-132,2022-106/999-953,870 SERIES,258-5015,294-5155,750-491,283-107,750-493,750-502/000-800,750-492,750-495,258-5010,750-494,294-5153,750-497,750-496,231-346/108-000,283-101,750-494/025-000,2016-499,281-511,283-104,750-494/025-001,757-303,262-230,231-742/001-000,862-1632,862-9594,2092-3375,862-1634,862-1633,2092-3372,744-292,862-1625,862-9593,858-354,858-355,855-401/400-501,2002-171,750-508/000-800,750-665/000-001,2002-172,211-506,756-3203/190-050,750-624/020-001,722-150,733-362/105-604,294-5175,862-1615,2002-161,2004-911/1000-542,2004-911/1000-541,262-212,769-221,769-222,254-451,769-217,231-102/008-000,769-212,769-213,769-214,855-9300/500-000,793-4599,721-2116/026-000,262-202,769-231,769-232,769-233,769-227,231-125,2002-1308,769-223,855-5001/400-000,2002-1301,713-1418/116-000,706-2300/502-300,721-862/001-000,2857 SERIES,858-324,231-128,231-129,231-126,231-127,781 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SERIES,2857-194/3140-000,862-9625,756-3205/140-050,750-626/040-000,2734-202/031-000,232-346,732-132/026-000,2002-2611,739-242,2002-2612,706-2300/404-100,2002-1391,231-193,215-511,2002-1392,2002-1393,2002-1394,704-5074,750-8102,750-8101,750-8100,2091-1372,231-195,210-254,210-251,210-250,721-87

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数据手册 - 天工测控 - V1.01 - 30-Oct-2023 PDF 英文下载

天工测控（Skylab）WG221 SDIO 2.4GHz 802.11b/g/n WIFI与UART蓝牙组合模块数据手册

描述- WG221 SDIO 2.4GHz 802.11b/g/n WIFI and UART Bluetooth Combo Module Data

型号- WG221(09282),RTL8723,WG221

数据手册 - 天工测控 - V1.04 - 23-Jul-2018 PDF 英文下载

Requirements for Bluetooth Modules in Intelligent Security Systems and Applicable Modules for Tiangong Measurement and Control

The Bluetooth module in the intelligent security system needs to have characteristics such as low power consumption, high security, stable connectivity, suitable transmission distance and penetration, small size and easy integration, multi device connection capability, anti-interference ability, and fast response. The SKB369 Bluetooth 4.2 low-power module from Tiangong Measurement and Control is suitable for devices with strict cost and power requirements； The SKB501 Bluetooth 5.0 module is suitable for intelligent security scenarios that require high transmission distance and performance.

器件选型发布时间 : 2024-10-31

Wifi Module MT7628: How to Use Step by Step Guide?

This project SKYLAB will explain in detail how to create a device to measure the level of a water reservoir with graduation from 20% to 20%, to present the results through a Web Server.

设计经验发布时间 : 2022-01-27

What are The Application Scenarios of Bluetooth Beacon?

the Bluetooth module developed by SKYLAB is characterized by some optimization of the working current of the module itself. The normal sending and receiving current is about 1.2mA.

技术探讨发布时间 : 2022-08-04

Innovative Application of Bluetooth Module Empowering Smart Sports Devices

The Bluetooth module has implemented innovative applications in smart sports devices, including real-time data monitoring and personalized feedback, intelligent training mode and remote guidance, team collaboration and competitive analysis, virtual reality and augmented reality integration experience, as well as device interconnection and intelligent management.

应用方案发布时间 : 2024-10-30

SKB501 Multiprotocol Bluetooth 5/ANT Module Datasheet

型号- SKB501-XXPI,SKB501-CSPI,SKB501-CSEI,SKB501

数据手册 - 天工测控 - V1.05 - 12-Oct-2019 PDF 英文下载查看更多版本

Skylab lanuched a 1.8μA Ultra Low Energy Bluetooth Module SKB378 for Smart Home

This article recommends a Bluetooth module SKB378 for smart home and smart lighting. The SKB378 is an ultra-low energy Bluetooth module with a sleep current as low as 1.8μA.

新产品发布时间 : 2022-08-19

Application of Bluetooth Module SKB501 in Intelligent Security

In today‘s society, the importance of intelligent security systems is increasingly prominent. With the continuous advancement of technology, the Bluetooth module SKB501 has brought new opportunities and breakthroughs to the field of intelligent security.

应用方案发布时间 : 2024-09-30