The E22-900T22S-V2 is a professional-grade SX1262-based LoRa UART module delivering 22dBm transmit power and 5km long-range stability, specifically optimized for the 868/915MHz bands with industrial-grade TTL level compatibility (3.3V-5V).
| Parameter | Technical Specification |
|---|---|
| Model Number | E22-900T22S-V2 |
| Core Technology | Semtech LoRa Solution (SX1262) |
| Operating Frequency | 850.125 ~ 930.125 MHz (868/915MHz) |
| Transmit Power | 22 dBm (approx. 160mW) |
| Communication Distance | 5 km |
| Interface Type | UART (TTL Level, 3.3V/5V Compatible) |
| Dimensions & Weight | 16 * 26 mm | 2.1±0.1g |
3D files
RF_Setting(E22-E9X(SL))+V3.3
Xcom
Demo_Ebyte_UART
Pcb_Lib_E22-900T22S
Application Note
E22-900T22S-FCC Certification
E22-900T22S-CE Certification
E22-900T22S-ROHS Certification
Ebyte Company Profile
Technical Support Videos
Key Specifications
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency band | 850.125~930.125MHz | Support ISM band |
| Transmitting power | 22 dBm | Max. Power 160mW |
| Receiving sensitivity | -147dbm | - |
| Air speed | 2.4 K ~62.5KBPS | User programming control |
| Measured distance | 5000 meters | Clear open environment, maximum power, antenna gain 5dBi, height 2.5m |
| Hardware Parameter | Value | Remark | |
|---|---|---|---|
| Size | 16 * 26 mm | ||
| Antenna form IPEX/ | Stamp hole | Equivalent impedance is about 50 ω | |
| Communication port | UART serial port | TTL level | |
| Package | Patch type |
| Electrical Parameter | Min. | Typ. | Max. | Unit | Condition | |
|---|---|---|---|---|---|---|
| Power supply voltage | 2.3 | 5.0 | 5.5 | V | ||
| Communication level | - | 3.3 | - | V | ||
| Emission current | - | 155- | MA | 22dBm (160mW） | ||
| Receiving current | - | 11 | - | |||
| MADormant current | - | 2.0 | - | uA | ||
| Working temperature | -40 | 20 | +85 | ℃ | ||
| Working humidity | 10 | 60 | 90 | % | ||
| Storage temperature | -40 | 20 | +125 | ℃ |
Application
Remote Smart Metering Infrastructure: In urban environments where signal shielding is a challenge, the E22-900T22S-V2 utilizes its 22dBm penetration capability to transmit data from underground water or gas meters. Its 5km range allows a single gateway to cover vast residential blocks, significantly reducing network deployment costs.
Industrial Sensor Data Backhaul: In heavy industrial zones with significant electromagnetic interference, the LoRa spread spectrum technology of the SX1262 core ensures stable communication for vibration and temperature sensors. The TTL level compatibility allows direct integration with both legacy 5V PLCs and modern 3.3V ARM controllers.
Precision Agriculture & Irrigation: For expansive outdoor plantations, the module provides a low-power wireless link over 5km, enabling real-time soil moisture monitoring and remote valve control. The sub-GHz frequency facilitates signal diffraction around foliage and topographical obstacles that typically block high-frequency signals.
FAQ
Q: What is the peak current requirement for the E22-900T22S-V2 when transmitting at maximum power?
A: When transmitting at 22dBm (160mW), the peak current typically ranges from 150mA to 160mA at a 5V supply. It is critical to ensure your power source can handle these transient spikes without voltage dips. We recommend placing a 100uF low-ESR decoupling capacitor near the VCC pin to maintain signal stability and prevent frequency drift during the transmit burst.
Q: How should the antenna matching be handled for the IPEX and Stamp Hole interfaces?
A: Both the IPEX connector and the stamp hole pad 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 strictly controlled dimensions. An impedance mismatch here will reflect power back into the PA, reducing the 5km effective range.
Q: Can the E22-900T22S-V2 be connected directly to a 5V logic microcontroller without level shifters?
A: Yes, the module's UART interface is hardware-engineered to be compatible with both 3.3V and 5V TTL logic levels. The internal circuitry handles the logic threshold detection safely, allowing IoT engineers to connect the TXD/RXD pins directly to 5V systems like traditional Arduino or industrial PLCs without the risk of CMOS gate damage typically associated with 3.3V-only chips.
