Bluetooth

129 Yuan DIY STM32 Open Source Smart AI Watch with Built-in Pedometer, Compass, NFC, Heart Rate Monitor, Temperature and Humidity Sensor, Altimeter, and Bluetooth OTA Upgrade

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129 Yuan DIY STM32 Open Source Smart AI Watch with Built-in Pedometer, Compass, NFC, Heart Rate Monitor, Temperature and Humidity Sensor, Altimeter, and Bluetooth OTA Upgrade

Contact the editor at the end of the article to obtain the project source code. OV-Watch Smart Watch is based on the STMicroelectronics STM32F411CUE6 development board and the FreeRTOS operating system, using the LVGL graphics library; gesture recognition utilizes a 6-axis MPU6050; heart rate and blood oxygen monitoring is done using the EM7028; altitude measurement … Read more

In-Depth Analysis of the LE Set Scan Parameters Command in the Zephyr Bluetooth Stack

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In-Depth Analysis of the LE Set Scan Parameters Command in the Zephyr Bluetooth Stack

1. Protocol Interpretation The HCI_LE_Set_Scan_Parameters command is used to set the scanning parameters. 1.1 Command Parameters LE_Scan_Type indicates whether the scan is active or passive. The LE_Scan_Interval and LE_Scan_Window parameters are recommendations from the Host on how long (LE_Scan_Window) and how frequently (LE_Scan_Interval) the Controller should scan. The LE_Scan_Window parameter shall always be set to … Read more

From Beginner to Expert: A Comprehensive Analysis of Bluetooth Protocols

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From Beginner to Expert: A Comprehensive Analysis of Bluetooth Protocols

Bluetooth technology has permeated our lives widely: wireless headphones, smartwatches, game controllers, in-car voice systems, IoT devices… But do you really understand what Bluetooth protocols your devices support, how fast they are, and how far they can transmit? This blog will systematically guide you through the history and technical differences of Bluetooth protocols. 1. Background … Read more

Bluetooth Standards and Appropriate Testing Solutions

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Bluetooth Standards and Appropriate Testing Solutions

Advancements in Bluetooth Technology The Bluetooth v3.0 standard supports high data rates, while Bluetooth v4.0 incorporates Bluetooth Low Energy (LE) technology, which includes low power consumption in its specifications.New features such as long-range communication and high-precision indoor positioning have been added in Bluetooth v5.0 and later versions. Bluetooth RF Specifications The RF specifications of Bluetooth … Read more

ESP32: Serial Communication Interface Protocols

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ESP32: Serial Communication Interface Protocols

The ESP32, as a powerful IoT chip, integrates various serial communication interface protocols to meet different connectivity and peripheral needs. Below are the main serial communication protocols supported by the ESP32 and their characteristics: 1. Universal Asynchronous Receiver/Transmitter (UART) Protocol Basics: Asynchronous Serial Communication: No clock signal line is required; both parties communicate based on … Read more

Cutting-Edge Wireless Technologies

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Cutting-Edge Wireless Technologies

Wireless Technologies Wireless Technologies 1. RF (Radio Frequency), such as RF433, RF315RF technology introduction: RF is the abbreviation for Radio Frequency. The dictionary definition of Radio is: n. radio communication, radio receiving device, radio broadcasting equipment; v. to send via radio. The dictionary definition of Frequency is: n. frequency, periodicity, occurrence count. In electronic theory, … Read more

Unveiling 8 Amazing Vivo Smartwatches with Stunning Features!

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Unveiling 8 Amazing Vivo Smartwatches with Stunning Features!

Vivo is a prominent name in the digital world! Besides smartphones, their smartwatches are also worth a look. From stylish designs to powerful features, each model is packed with highlights. For instance, the vivo WATCH 3 eSIM smartwatch in starlight color with a Milanese strap set is visually stunning; the vivo iQOO WATCH GT with … Read more

Sensor Technology: Bosch Sets a New Benchmark for Bluetooth-Based Tire Pressure Sensors

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Sensor Technology: Bosch Sets a New Benchmark for Bluetooth-Based Tire Pressure Sensors

New ultra-low power MEMS sensor for easy integration  Bosch’s new tire pressure sensor SMP290 features low-power Bluetooth (BLE) technology, simplifying vehicle architecture.  Standardized Bluetooth interface supports new application scenarios such as direct connection to smartphones.  Ultra-low energy consumption ensures a lifespan of up to ten years for the tire pressure sensor.  … Read more

Comprehensive Analysis of the ESP32 Wireless Communication Module: A Versatile Chip Supporting the IoT Landscape

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Comprehensive Analysis of the ESP32 Wireless Communication Module: A Versatile Chip Supporting the IoT Landscape

🌟 Comprehensive Analysis of the ESP32 Wireless Communication Module: A Versatile Chip Supporting the IoT Landscape From Wi-Fi 6 to Bluetooth Mesh, this domestic chip priced at ¥10 is revolutionizing the IoT world! 📡 1. Wireless Communication: Full-Stack Protocols Controlled by One Chip Dual-Mode Integration: The Golden Combination of Wi-Fi + Bluetooth Classic Bluetooth for … Read more

Goodbye to Traditional Bluetooth Limitations! The Low-Power MYF-F20VB01 Module Breaks Through

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Goodbye to Traditional Bluetooth Limitations! The Low-Power MYF-F20VB01 Module Breaks Through

Are you still troubled by the short connection distance, weak wall penetration, high power consumption, and susceptibility to interference in industrial environments of traditional Bluetooth? The MYF-F20VB01 module, designed to break through these bottlenecks, has arrived! It is built on the Hisilicon BS20V100 platform, supports BLE and SLE, and integrates ultra-low power consumption, industrial-grade anti-static … Read more