The Ebyte E220-400T22S User Manual provides an overview, specifications, wiring diagrams, and operation instructions for this LoRa wireless module.
This manual introduces the E220-400T22S LoRa wireless UART module, its features, and typical application scenarios such as smart home, industrial sensors, and alarm systems. It includes a detailed product overview, mechanical dimensions, pin definitions, and recommended wiring diagrams.
The document also covers functional details, working modes, register access, PC configuration, hardware design guidelines, common troubleshooting, soldering instructions, related models, antenna recommendations, and packaging information. This manual is written in Chinese.
| Supply voltage (V) | 2.3 – 5.5 |
|---|---|
| Operating frequency (MHz) | 410.125 – 493.125 |
| Maximum transmit power (dBm) | 22.0 |
| Receive sensitivity (dBm) | -129 |
| Operating temperature (°C) | -40 – +85 |
| TX current (mA) at 22 dBm | 110 |
| RX current (mA) | 11 |
| Sleep current (µA) | 2 |
Transmission distance can be reduced by factors such as antenna gain, environment, and power settings.
Exceeding the maximum supply voltage or improper power connections can permanently damage the module.
A high error rate may result from poor signal quality, incorrect configuration, or interference.
When powered on, the module performs a self‑test and then sets the working mode; wait for the AUX pin to go high before using the module.