Product Overview

The E04-2G4M10S1AX is a wireless communication module based on STMicroelectronics' STM32WBA54KGU6TR SoC solution. It features long communication distance, low power consumption, strong anti-interference capability, rich interface resources, strong processing power, and small size. The wireless communication module requires secondary development by the user and can be widely used in the Internet of Things (IoT) industry.

The EWT04-2G4M10S1AX is an integrated testing platform built by E04-2G4M10S1AX wireless module. It deeply integrates the module's core functions with convenient development tools, allowing users to quickly conduct communication tests, function verification, and application development without building their own hardware environment.

Core Features: Industrial-Grade Design Balancing Convenience and Reliability

1. Plug-and-Play Standardized Interface

The kit uses a Type-C interface as the power supply and communication channel, compatible with mainstream PCs and embedded devices. No additional drivers are required (integrated with a high-performance CH340G chip for automatic serial port recognition), truly achieving "out-of-the-box use."

2. Rich Peripherals Covering Multi-Scenario Testing Needs

• Custom Buttons and Indicators: Equipped with a PA6 custom button and PA1/PA2 custom indicators, supporting quick debugging of I/O functions;

• Reset and Power Indicators: The NRST reset button can restart the module with one click, and the PWR power indicator provides real-time feedback on the power supply status;

• IPEX Antenna Interface: Supports IPEX Gen 1 antenna expansion, allowing users to flexibly replace high-gain antennas to adapt to different communication scenarios.

3. Stable Power Supply and Signal Guarantee

• Supports 3.3V module power supply jumper (M3V3) to ensure stable operating voltage for the module;

• Serial TXD/RXD pins (PB12/PA8) adopt a jumper design, making it convenient for users to connect external devices for data interaction.

Hardware Design: Modular Layout Balancing Expandability and Usability

1. Product Size and Interface Definition

The kit adopts a compact design (specific dimensions can be found in the specification sheet) with a clear interface layout:

Pin Resources: Flexible Expansion for Customized Needs

The kit provides 24 configurable pins, covering general-purpose I/O, serial ports, power supplies, etc., allowing users to freely define functions according to development needs:

• Serial Pins: PB12 (TXD) and PA8 (RXD), supporting data transparent transmission and command interaction;

• General-Purpose I/O Ports: PA0/PA1/PA2/PA5/PA6/PA7/PA12/PA13/PA14/PA15/PB3/PB4/PB8/PB9/PB15, which can be connected to external sensors, actuators, and other peripherals;

• Power Supply and Ground: 3.3V output, M3.3V input, and multiple GND pins to ensure stable power supply.

FAQs

1. Unsatisfactory Transmission Range?

• Environmental Factors: Temperature, humidity, and co-channel interference reduce communication quality; ground and seawater absorption/reflection of radio waves weaken signals;

• Hardware Factors: Metal objects near the antenna (e.g., metal casings) cause signal attenuation; power voltage lower than the recommended value (3.3V) reduces transmission power;

• Solutions: Stay away from interference sources, use matched high-gain antennas, and ensure stable power voltage (linear power supplies are recommended).

2. Easy Module Damage?

• Power Supply Issues: Voltage exceeding the maximum value (refer to the module specification sheet) causes permanent damage; frequent voltage fluctuations shorten service life;

• Static Electricity and Environment: High-frequency devices are sensitive to static electricity, requiring anti-static measures; humidity above 85% (without condensation) affects component performance;

• Solutions: Use power supplies that meet specifications, wear anti-static wristbands during operation, and avoid use in extreme temperature and humidity environments.

3. High Bit Error Rate?

• Interference and Power Supply: Co-channel signal interference causes data loss; excessive power supply ripple causes garbled characters;

• Hardware Connection: Poor quality or overly long extension cables/feeders attenuate signals;

• Solutions: Modify communication frequency/channels to avoid interference, and use high-quality power supplies and transmission lines.

The E04-2G4M10S1AX and EWT04-2G4M10S1AX test kit are designed with "convenience + reliability + expandability" at its core. It not only solves the pain points of complex hardware setup and long debugging cycles in traditional development but also ensures the accuracy of test data through industrial-grade quality. Whether for wireless communication scheme verification, module performance evaluation, or embedded application development, this kit provides efficient and stable support for engineers, helping projects land quickly.