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.

Bluetooth Specification is a set of standard rules defining wireless communication between Bluetooth devices. With technological evolution, Bluetooth protocols have developed from Classic Bluetooth to Bluetooth Low Energy (BLE) and then to Dual-Mode Bluetooth, meeting diverse requirements for speed, power consumption, and functionality across different scenarios.

SparkLink is a new-generation short-range wireless communication technology independently developed in China, launched by the SparkLink Alliance. It integrates the advantages of traditional wireless technologies (such as Bluetooth and Wi-Fi) while featuring low latency, high reliability, high synchronization accuracy, and high security.

Bei der Entwicklung von IoT-Endgeräten haben die Bluetooth-Chips der nRF-Serie von Nordic seit jeher eine wichtige Position eingenommen. Unter ihnen ist die Lösung nRF51822 als frühklassisches Modell immer noch in kostengünstigen Szenarien weit verbreitet; während die nRF52832-Lösung als aktualisierte Version zur ersten Wahl für Mid-to-High-End-BLE-Produkte mit stärkerer Leistung geworden ist.

In the development of IoT terminal devices, Nordic's nRF series Bluetooth chips have always occupied an important position. Among them, the nRF51822 solution, as an early classic model, is still widely used in low-cost scenarios; while the nRF52832 solution, as an upgraded version, has become the first choice for mid-to-high-end BLE products with stronger performance.

The Internet of Things (IoT) smart home is a highly popular topic nowadays, but people's requirements for smart homes are by no means limited to the simple level of controlling lights with a mobile phone. We need to spread intelligence to every corner.