| Parameter | Specification |
|---|---|
| Core Module | E22-400T22S |
| Operating Frequency | 433 MHz |
| Communication Interface | USB (via USB-to-TTL Bridge) |
| Communication Distance | 5 km |
| Dimensions | 58 x 28 mm |
| Target Use | Rapid Prototyping & RF Testing |
Practical Application Scenarios
1. Rapid On-Site RF Link Debugging
Field engineers utilize this USB test kit to perform real-time signal strength (RSSI) and packet loss analysis without needing an external microcontroller or complex wiring. By plugging the kit directly into a laptop, users can quickly verify if the LoRa network coverage meets deployment requirements in complex industrial environments.
2. Streamlining Firmware Development for IoT Nodes
Developers working on firmware for the E22-400T22S module can use this test board as a standard development platform. It enables seamless serial communication between PC-based configuration software and the module, allowing for quick adjustments to air data rates, transmission power, and LoRa spreading factors during the development cycle.
3. Industrial Data Acquisition System Validation
This kit acts as a reliable gateway interface for testing communication between a PC-based control system and remote industrial sensors. It serves as an essential verification tool to ensure that Modbus or custom protocols are correctly packetized and transmitted over the LoRa network before full-scale installation.
FAQ Section
1. Does the test board require additional drivers for PC connection?
Yes, the onboard USB-to-TTL bridge chip (e.g., CH340 or CP2102) requires specific drivers. Once installed, the PC will recognize the module as a virtual COM port, allowing you to interface with it using standard serial terminal software or Ebyte’s specialized configuration tools.
2. Can I use this kit for permanent installation in industrial products?
This kit is intended primarily for evaluation, testing, and rapid prototyping. While it is fully functional, for permanent integration into industrial hardware, we recommend using the standalone SMD module (E22-400T22S) directly on your PCB to optimize space, reduce costs, and improve vibration resistance.
3. Does the module support frequency hopping or advanced spread spectrum?
Yes, the integrated E22-400T22S module utilizes Semtech's LoRa spread spectrum technology, which inherently supports advanced modulation schemes. You can configure various spreading factors and bandwidths via the software, which provides high interference immunity in crowded 433MHz bands.
