The E22-400M30S is a high-performance 1W (30dBm) LoRa module powered by the SX1268 chip, achieving an incredible 12km long-range transmission in the 410-493MHz band with industrial-grade stability.
| Main Parameter | Specification |
|---|---|
| Model Number | E22-400M30S |
| Chip Solution (IC) | Semtech SX1268 (New Gen LoRa) |
| Frequency Range | 410 ~ 493 MHz (Default: 433MHz) |
| Transmit Power | 30 dBm (1 Watt) |
| Comm. Distance | 12 km (Ideal conditions) |
| Supply Voltage | 2.5 V - 5.5 V |
| Interface Type | SPI (High-speed hardware access) |
| Antenna Type | IPEX / Stamp Hole |
| Operating Temp. | -40 ~ +85 ℃ (Industrial grade) |
| Package & Size | SMD | 24 * 38.5 mm |
| Product Weight | 4.9g ± 0.1g |
| Origin | Mainland China (EBYTE Official) |
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Application Note
Ebyte Company Profile
E22-400M30S-CE Certification
E22-400M30S-ROHS Certification
Key Parameters
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~493 MHz | - |
| Transmitting power | 30 dBm | Max. Power (1W) |
| Receiving sensitivity | -150 dBm | - |
| Air data rate | 0.018k~300kbps | - |
| Test distance | 12000m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 24 * 38.5 mm | |
| Antenna type | IPEX / Stamp hole | |
| Communication interface | SPI | |
| Package | SMD | |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 2.5 | 5 | 5.5 | V | |
| Communication level | 1.8 | 3.3 | 3.7 | V | |
| Transmitting current | 600 | 650 | 700 | mA | 30dBm（1W） |
| Receiving current | 12 | 14 | 16 | mA | |
| Sleep current | 1 | 3 | 5 | nA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
Application
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Smart Agriculture & Irrigation: The E22-400M30S provides an expansive 12km coverage, enabling remote soil moisture and irrigation control across large-scale plantations without the need for cellular infrastructure.
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Industrial Remote Monitoring: With its 30dBm output power, this module solves signal penetration issues in heavy industrial zones, transmitting through thick concrete walls and metallic structures for reliable factory automation data collection.
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Oil and Gas Pipeline Surveillance: Designed for the harshest environments, the module's -40 to +85 ℃ operating range and long-distance capability make it ideal for monitoring pipeline pressure and leaks in remote, unmanned geographical locations.
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Outdoor Environmental Sensors: Its high sensitivity and LoRa spread spectrum technology allow for long-range data backhaul from flood sensors or forest fire detection systems located deep in mountainous terrains.
FAQ
Q: What is the peak current consumption during transmission at 30dBm for the E22-400M30S?
A: When transmitting at the maximum power of 30dBm, the module typically consumes around 600mA to 650mA at a 5V supply. It is critical to ensure your power supply can handle transient current spikes of at least 800mA to avoid voltage dips that could reset the MCU or degrade RF signal quality.
Q: How does the SX1268 chip compare to the older SX1278 in terms of efficiency?
A: The SX1268 provides a higher receiving sensitivity down to -148dBm and significantly lower power consumption in receiving mode compared to the SX1278. Additionally, the SX1268 features a new generation LoRa modulation that supports higher spreading factors while maintaining better anti-interference capabilities in congested sub-GHz bands.
Q: Can I use a 3.3V logic level with the SPI interface of the E22-400M30S?
A: Yes, the module supports a supply voltage range of 2.5V to 5.5V, but the SPI communication pins are 3.3V logic level compatible. If you are using a 5V microcontroller, you must use a logic level shifter on the MISO, MOSI, SCK, and NSS lines to prevent damaging the SX1268 IC.
Q: What are the impedance matching requirements for the IPEX and stamp hole antenna interfaces?
A: Both the IPEX connector and the stamp hole antenna pin are designed for a 50-ohm characteristic impedance. To minimize insertion loss and VSWR, any PCB trace leading from the stamp hole to an external antenna connector should be designed as a coplanar waveguide or microstrip line with a strictly controlled 50-ohm impedance.
