The Bluetooth module is used for communication between Bluetooth devices. The most common use is for an Arduino to communicate with a smartphone via the Bluetooth module. 1. HC-06 (Slave) 1 Operating voltage: 3.3V LDO for the board, input voltage of 3.6~6V, current approximately 30mA when unpaired, about 10mA when paired. Do not exceed 7V … Read more
As the Internet of Things market matures, Bluetooth technology, as one of the mainstream wireless connection technologies that supports the “Internet of Everything,” is also accelerating its evolution, bringing greater application space. Speaking of Bluetooth, we often use devices related to Bluetooth functionality in our lives. Although they are all Bluetooth, there are many differences, … Read more
As a fashionable tech youth, there are a few products that enhance personal charm in life: Bluetooth headsets, Bluetooth mice, Bluetooth speakers, smart wristbands… Just buying one, even if you haven’t started using it, will make you feel like your life has instantly upgraded in quality, and the tech attributes are off the charts. Copyright … Read more
The wireless transmission part of the wireless/wired dual-mode power health monitor mainly uses the Mdbed BLE Sensors Tag Bluetooth module. Through the Bluetooth module, information such as sound, power temperature, power fan speed, noise, and odor is sent to the mobile phone. The mobile phone can also perform an emergency power cut through the Bluetooth … Read more
During visual inspection (non-sectioning), voids in the copper layer and coating layer of the hole (void) are common defects. Voids identified during visual inspection refer to areas exposing the substrate material, while voids identified through section analysis refer to areas below the minimum thickness specification, indicating a fundamental difference between the two. Different grades of … Read more
Hello everyone, welcome to <span>LiXin Embedded</span>. Today, let’s talk about a technology that is super popular in the Internet of Things (IoT) field—Bluetooth Low Energy (BLE). You may already be using Bluetooth headphones, fitness bands, or smart lights at home, but did you know? BLE is quietly changing our lives. From smart homes to medical … Read more
The following is a detailed design and implementation plan for smart locks and APP communication via Bluetooth BLE, covering protocol design, security mechanisms, development processes, and typical scenarios, helping developers quickly implement remote control and status management of smart locks: 1. Smart Lock and APP Communication Protocol Design (1) Service and Characteristic Definitions Smart locks … Read more
The differences between traditional Bluetooth and BLE (Bluetooth Low Energy) in Bluetooth BQB certification mainly lie in the following aspects: Application Scenarios and Functional Requirements Traditional Bluetooth: Primarily used in scenarios requiring high-speed data transmission for audio, video, and other large data, such as speakers, headphones, and automotive electronics in traditional data transmission industries, focusing … Read more
Below is a detailed explanation of the workflow of BLE devices, covering the complete process from device startup to data communication, incorporating the core steps of the GAP (Generic Access Profile) and GATT (Generic Attribute Profile) protocols. 1. Device Startup and Initialization Step 1: Hardware Initialization •Hardware Preparation: ￮Power on the BLE chip (e.g., nRF52, … Read more
The following are the key strategies and implementation methods for low power design in BLE devices, covering hardware selection, software optimization, protocol configuration, and practical cases to help developers design ultra-low power Bluetooth devices: 1. Hardware Design Optimization (1) Select Low Power Chips •Recommended Chips: ￮nRF52 Series (Nordic Semiconductor): Supports deep sleep modes (e.g., System … Read more