The E220-400M30S is a high-power 1W (30dBm) LoRa module based on the new-generation LLCC68 chip, offering a 10km long-range transmission and superior anti-interference performance for sub-GHz industrial IoT applications.
| Key Parameter | Specification |
|---|---|
| Model Number | E220-400M30S |
| Chip Solution | Semtech LLCC68 (New Gen LoRa) |
| Frequency Range | 410.125 ~ 493.125 MHz (433/470MHz) |
| Transmit Power | 30 dBm (1 Watt) |
| Distance | 10 km |
| Supply Voltage | 3.3 V ~ 5.5 V (Typical 5V) |
| Interface | SPI |
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| Main parameter | Performance | Remarks |
|---|---|---|
| Reference distance | 10km | In clear and open environment, the antenna gain is 5dBi, the antenna height is 2.5m, and the air speed is 2.4kbps. |
| FIFO | 256Byte | Maximum length of single transmission |
| Crystal frequency | 32MHz | - |
| Modulation mode | LORA | Lora modulation is recommended |
| Packaging method | SMD | - |
| Interface mode | Stamp hole | The spacing is 2.54mm |
| Communication interface | SPI | 0~10Mbps |
| Dimension | 38.5*24mm | Including shield |
| RF interface | Stamp hole / IPEX | - |
| Main parameter | Min. | Typ. | Max. | Unit | Remarks |
|---|---|---|---|---|---|
| Working voltage | 3 | 5 | 5.5 | V | ≥5.5 V ensures output power |
| Operating frequency band | 410 | 433/470 | 493 | MHz | Support ISM band |
| Communication level | - | 3.3 | - | V | Probably burnout when using 5V TTL |
| TX current | - | 600 | - | mA | Instantaneous power consumption |
| RX current | - | 12.5 | - | mA | - |
| Sleep current | - 1 | - | μA | Software shutdown | |
| Working temperature | -40 | - | +85 | ℃ | Industrial Design |
| Max TX power | 29 | 30 | 31 | dBm | - |
| Receiving sensitivity | - | -129 | - | dBm | -124dbm,BW_L=125kHz,SF = 7,LORA TM; -129dbm,BW_L=125kHz,SF = 9,LORA TM; -121dbm,BW_L=250kHz,SF = 7,LORA TM; -129dbm,BW_L=250kHz,SF = 10,LORA TM; -117dbm,BW_L=500kHz,SF = 7,LORA TM; -127dbm,BW_L=500kHz,SF = 11,LORA TM; |
| GFSK（bps） | 0.6k | - | 300k | bps | User programming control |
| LoRa（bps） | 1.76k | - | 62.5k | bps | User programming control |
Application
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Industrial Wireless Control: In large-scale factory environments, the E220-400M30S utilizes its 30dBm output power to penetrate heavy machinery and reinforced concrete walls. This ensures reliable command transmission for PLC systems and robotics where traditional Wi-Fi or Bluetooth fail due to distance and interference.
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Smart Agriculture & Irrigation: The 10km communication range allows a single gateway to cover vast farmlands. By deploying sensors with the LLCC68 chip, farmers can monitor soil moisture and control valves remotely, significantly reducing the cost of cellular data subscriptions and physical wiring.
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Underground Pipeline Monitoring: For water and gas utilities, the 433MHz band combined with LoRa spread spectrum technology provides superior diffraction capabilities. The E220-400M30S can transmit data from manholes or underground vaults to above-ground receivers, overcoming severe signal attenuation.
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Long-Range Remote Security: Integrated into perimeter security systems, this module provides a robust link for alarm triggers and status monitoring across expansive estates or industrial parks, maintaining a stable connection even in complex topographical conditions.
FAQ
Q: What is the maximum instantaneous current requirement for the E220-400M30S during 30dBm transmission?
A: When transmitting at full power (30dBm), the module typically requires a current of approximately 650mA at 5V. It is essential to ensure your power supply system, including regulators and decoupling capacitors, can handle transient peaks of up to 800mA. Inadequate current supply during transmission may lead to voltage dips, resulting in frequency drift or MCU brown-out resets.
Q: How does the LLCC68 chip differ from the SX127x series in terms of spectral efficiency?
A: The LLCC68 is a newer generation chip that offers improved modulation efficiency and lower power consumption in receive mode. While both support LoRa, the LLCC68 features a more advanced integrated DCDC/LDO power management system. This allows the E220-400M30S to achieve a higher link budget and better sensitivity at the same power level compared to older SX1278 designs.
Q: Are the SPI pins of the E220-400M30S compatible with 5V logic microcontrollers?
A: The module's communication level is determined by the internal pull-up and logic thresholds, which typically follow the VCC level for IO. However, the SX12xx series silicon is generally 3.3V based. If your microcontroller operates at 5V, it is highly recommended to use 1k-4.7k ohm current-limiting resistors or a dedicated logic level shifter on the SPI lines to prevent high-voltage damage to the chip.
Q: Why are both IPEX and Stamp Hole antenna interfaces provided on this module?
A: This dual-interface design offers flexibility for different integration needs. The IPEX connector is ideal for rapid prototyping or applications where an external antenna is connected via a pigtail. The stamp hole is designed for high-volume SMT production, allowing the antenna to be soldered directly to the carrier PCB or connected to a microstrip line, which optimizes RF impedance matching and reduces assembly costs.
