The classic E73-2G4M04S1B product from Chengdu Ebyte Electronic Technology Co., Ltd. (EBYTE), with its complete combination of four international certifications — CE, FCC, RoHS and TELEC — has become a highly trusted 2.4GHz BLE low-power Bluetooth module. This article dives into the significance of these certifications and how the E73-2G4M04S1B, with its "high performance, low power, and abundant resources" product features, has become the ideal choice for global customers in applications such as smart homes and industrial sensors.

This article is compiled based on the product manual and official materials of the Ebyte (EBYTE) E104-BT52X series Bluetooth low-energy modules (including E104-BT52X and E104-BT52X-V5.3). It introduces in detail the CE, FCC, RoHS, and SRRC international certifications obtained by the series, as well as the product features and the differences between the two models.

This article is compiled based on the product manual and official materials of the Ebyte (EBYTE) E104-BT52 series Bluetooth low-energy modules. It introduces in detail the CE, FCC, and SRRC international certifications obtained by the series, as well as the product models, core features, and differences between models.

This article is compiled based on the product manuals and official materials of the Ebyte (EBYTE) E104-BT05 and E104-BT5032A Bluetooth modules. It provides an in-depth analysis of the meaning of international certifications such as FCC, CE, RoHS, and SRRC, as well as the certification combinations and core features of the two modules, helping engineers select the right products and enter global markets smoothly.

The E104-BT14 series from Chengdu EBYTE Electronic Technology Co., Ltd. is a serial-to-BLE module based on the Bluetooth 5.4 protocol, with two models — E104-BT14SP (on-board PCB antenna) and E104-BT14SX (IPEX antenna interface). EBYTE also offers the EWT104-BT14SP test kit, built on the E104-BT14SP module, for fast evaluation and development.

A serial-to-BLE module is purpose-built to solve this problem. It integrates the Bluetooth protocol stack, RF transceiver and necessary peripheral circuits into a small module that communicates with the user's MCU over a standard UART interface. Users simply send AT commands to quickly enable wireless data transmission, dramatically lowering the barrier to Bluetooth adoption.

A public technical documentation edition covering module overview, chip solution, pin definitions, performance parameters, reference circuit, AT command configuration, PCB layout guidelines, module usage and application experiments with open-source driver and sample code.

The EWD104-BT58 Series domestic Bluetooth beacons from Chengdu EBYTE Electronic Technology Co., Ltd. are designed to address these pain points. Based on the BLE 5.3 protocol, they support multiple broadcast modes including iBeacon and Eddystone. With core features such as ultra-low power consumption, IP67 waterproofing (waterproof models), optional multi-sensors (temperature/humidity/gyroscope), OTA upgrades, and AT command configuration, this series has become an ideal choice for personnel positioning, asset management, indoor navigation, and more.

From synchronized listening instruction in classrooms to museum tour guide systems, from high-energy music in fitness centers to simultaneous interpretation in conference rooms — the market demand for one-to-many, low-latency, and configurable audio broadcasting is growing rapidly.

I2C (Inter-Integrated Circuit) is a two-wire synchronous serial bus that simplifies communication between microcontrollers and peripheral devices. Integrating I2C functionality into Bluetooth modules enables direct sensor data acquisition, external memory access, and peripheral control without additional host MCUs, reducing system complexity and BOM cost.

According to QYResearch, the global wireless module market is projected to reach $10.36 billion by 2032, growing at a CAGR of 5.9% from 2026 to 2032 [Source: Gelonghui, 2026]. As a leading manufacturer of wireless communication solutions, Chengdu Ebyte Electronic Technology Co., Ltd

The EWM104-BT13 series is not a traditional Bluetooth module for audio transmission, but a dedicated module that utilizes the low-power consumption and stable connection features of Bluetooth 5.0 to achieve proximity sensing, wireless control, and IO/PWM driving.

zwischen Bluetooth-Geräten definieren. Mit der technologischen Entwicklung haben sich Bluetooth-Protokolle von Classic Bluetooth über Bluetooth Low Energy (BLE) bis hin zu Dual-Mode Bluetooth entwickelt, das unterschiedliche Anforderungen an Geschwindigkeit, Stromverbrauch und Funktionalität über verschiedene Szenarien hinweg erfüllt.

According to the official documentation of Chengdu Ebyte Electronic Technology Co., Ltd., its Bluetooth audio modules are mainly divided into the following series based on main control chips, protocol versions, and functional features:

According to Ebyte's product documentation, Bluetooth 5.0 (also known as BLE 5.0) is the core protocol version in its low-power Bluetooth (BLE) product series. This version has significant improvements in speed, range, and data broadcasting capabilities compared to the previous version. The following is a detailed summary based on the documentation.