E220-400T30D adopts a new generation of LoRa spread spectrum technology and a wireless serial port module (UART) designed based on the LLCC68 chip solution. It has a variety of transmission methods, works in the (410.125~493.125MHz) frequency band (default 433.125MHz), TTL level output, and is compatible with 3.3V and 5V IO port voltages. Stay connected with ease and flexibility.
| Key Parameter | Specification |
|---|---|
| Model Number | E220-400T30D |
| Core Chipset | Semtech LLCC68 (LoRa) |
| Operating Frequency | 410.125 ~ 493.125 MHz |
| Transmit Power | 30 dBm (1W) |
| Communication Distance | 10 km (Line-of-Sight) |
| Sensitivity | -147 dBm |
| Interface | UART (TTL 3.3V/5V compatible) |
| Package Type | DIP (24 * 43 mm) |
Download Manual
E220-400T30D Manual
Xcom
Configer Tool
Ebyte Company Profile
E220 FCC Certification
Main Parameters
| Main | Parameter | Performance | Remark |
|---|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band | |
| Tx power | 30dBm | - | |
| Receiving sensitivity | -147dbm | Air data rate 2.4kbps | |
| Air data rate | 2.4k~62.5kbps | To control via user’s program | |
| Distance for reference | 10Km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate:2.4kbps |
| Main Parameter | Performance | Remark |
|---|---|---|
| Size | 24*43mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Communication interface | UART | TTL Level |
| Package | DIP | - |
| Main Parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 3.0 | 5.0 | 5.5 | V | ≥5.0V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be burning down |
| TX current | - | 620 | - | mA | Instant power consumption @30dBm |
| RX current | - | 17.2 | - | mA | 5V Voltage |
| Sleep current | - | 5 | - | uA | Sleep mode |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
Application
Agriculture & Irrigation
In expansive outdoor farmlands, the E220-400T30D overcomes connectivity gaps using its 10km range and LoRa spread spectrum technology. It solves the challenge of intermittent signals across vast crop canopies, allowing real-time soil moisture telemetry and remote valve control without cellular fees.
Industrial Smart Utility Metering
In urban environments with heavy concrete shielding, the module's -147dBm sensitivity enables reliable data acquisition from underground water or gas meters. The 30dBm transmit power ensures packets penetrate deep-indoor vaults to reach central gateways across high-density residential blocks.
Remote RTK GPS Base Stations
For autonomous heavy machinery in mining or construction, the E220-400T30D provides a robust wireless link for RTK correction data. Its industrial-grade reliability from -40 to +85°C ensures centimeter-level positioning accuracy is maintained in harsh, noise-filled worksites.
FAQ
Q: How should the power supply be designed to accommodate the peak current of the E220-400T30D during 30dBm transmission?
A: When transmitting at the maximum 30dBm (1W) power level, the instantaneous current consumption of the E220-400T30D can reach approximately 620mA. It is essential to use a power supply capable of delivering at least 1A of peak current to avoid voltage dips. For optimal RF stability, place a low-ESR tantalum capacitor of 100uF to 470uF near the VCC pin to handle transient power demands and reduce ripple noise.
Q: What are the impedance matching requirements for the SMA-K antenna interface to maintain the 10km link budget?
A: The antenna port is designed for a standard 50-ohm characteristic impedance. To achieve the 10km communication range, the connected antenna and coaxial feedline must have a Voltage Standing Wave Ratio (VSWR) of less than 1.5. Any impedance mismatch will result in reflected power back to the LLCC68 chip, which increases thermal stress on the module and significantly reduces the effective link budget and radiated power.
Q: Can the E220-400T30D UART interface handle 5V TTL logic levels directly?
A: Yes, the module is hardware-engineered with internal logic level detection that is compatible with both 3.3V and 5V IO port voltages. This allows direct integration with industrial PLCs or 5V microcontrollers like Arduino without external level shifters. However, for long-term industrial reliability at 5V, ensure the UART signal lines are clean of overshoot spikes that could exceed the silicon's absolute maximum ratings.
