Bluetooth positioning is an important function of the BLE Bluetooth module, which can compensate for the inability of GPS to cover indoor positioning scenarios. This article will introduce the positioning function of the BLE Bluetooth module from the overview of iBeacon, the principles of positioning technology, and industry applications. Overview of iBeaconiBeacon is a communication … Read more
Introduction A while ago, I posted an article about the JDY-31 Bluetooth module, so today I am writing an article about another model of Bluetooth module. Because the JDY-31 can only act as a slave, while the HC-05 can act as both a master and a slave. This is understandable, as the JDY-31 is relatively … Read more
Introduction: This article discusses the potential interference from high-frequency electromagnetic waves in electronic signal processing circuits in practice. These situations are often omitted in ordinary classrooms and textbooks. The additional peripheral resistors and capacitors that seem unrelated to ordinary signal processing play a crucial role in ensuring circuit stability. Therefore, while encountering problems may cause … Read more
Introduction: This article discusses the possible interference of high-frequency electromagnetic waves in electronic signal processing circuits in practice. These situations are often omitted in ordinary classrooms and textbooks. The additional peripheral resistors and capacitors that seem irrelevant to ordinary signal processing play a crucial role in ensuring the stable operation of the circuit. Therefore, although … Read more
1 Introduction This article summarizes the hardware design experience based on a certain Bluetooth module and is intended for hardware design reference only. 2 Antenna Design 2.1 PIFA Antenna Design 2.1.1 Size Requirements The size of this antenna is derived from theoretical calculations based on frequency characteristics and has been validated through practical design experience, … Read more
Product Overview The WT2600 audio Bluetooth module is an intelligent wireless audio data transmission and MP3 audio playback product independently developed by Shenzhen Weichuang Zhiyin Electronics. It is a low-cost and high-efficiency stereo wireless transmission solution, featuring high integration, compact size, low power consumption, and fast transmission speed. With just a few external components added … Read more
Bluetooth is a familiar technology to everyone, as we have all used it to some extent. But what about Bluetooth modules in microcontrollers? This article will take you into the world of Bluetooth modules. 1 Introduction to Bluetooth Modules A Bluetooth module is a commonly used wireless communication module, widely applied in various smart devices. … Read more
The preliminary round of the RM campus competition has just passed. I wonder if everyone has been paying attention to it? For those who did not participate, there is no need to worry. Here is the most comprehensive tutorial on using the Bluetooth module. (Including the largest engineering drawing assignment ever) In the RM campus … Read more
A Bluetooth module is a functional component that can only perform all its functions when embedded in a suitable system. When selecting a Bluetooth module for your product, both hardware and software aspects need to be thoroughly examined. The following diagram is a simplified structural diagram of a Bluetooth module. The hardware of a Bluetooth … Read more
Bluetooth modules with built-in antennas integrate antennas and Bluetooth chips, simplifying the design process, making them suitable for applications with space and design complexity requirements. Here are some common Bluetooth modules with built-in antennas: 1. Nordic Semiconductor Series (1)nRF52840 Module Model: e.g., u-blox NINA-B4, Raytac MDBT50Q. Features: Supports Bluetooth 5.2. Built-in PCB antenna or ceramic … Read more