The Ebyte E22-400T30S is a high-performance 433MHz 30dBm LoRa wireless serial port module based on Semtech SX1262 technology, offering long-range UART communication up to 10km with high-interference immunity, transparent transmission, air data rates from 0.3kbps to 62.5kbps, low power consumption down to 2uA in sleep mode, and standard SMD packaging with IPEX and stamp hole antenna interfaces for reliable IoT deployments.
| Parameter | E22-400T30S-V2 | E22-400T30S-V2 + TX433-FPC-3208 | E22-400T30S-V2 + TX433-JKS-IPX20 |
|---|---|---|---|
| Core Chipset | Semtech SX1262 | Semtech SX1262 | Semtech SX1262 |
| Operating Frequency | 410.125 to 493.125 MHz | 410.125 to 493.125 MHz | 410.125 to 493.125 MHz |
| Transmit Power | 30 dBm (Max) | 30 dBm (Max) | 30 dBm (Max) |
| Receiving Sensitivity | -148 dBm | -148 dBm | -148 dBm |
| Communication Distance | 10 km (in open line-of-sight) | 10 km (in open line-of-sight) | 10 km (in open line-of-sight) |
| Air Data Rate | 0.3 kbps to 62.5 kbps | 0.3 kbps to 62.5 kbps | 0.3 kbps to 62.5 kbps |
| Interface Type | UART (3.3V / 5V TTL) | UART (3.3V / 5V TTL) | UART (3.3V / 5V TTL) |
| Antenna Interface | IPEX / Stamp Hole (50 Ohm) | Integrated FPC Antenna (3208) | External Rubber Duck Antenna (JKS) |
| Supply Voltage | 2.3V to 5.5V DC (5.0V Typ.) | 2.3V to 5.5V DC (5.0V Typ.) | 2.3V to 5.5V DC (5.0V Typ.) |
| Operating Current | TX: 610 mA / RX: 17 mA / Sleep: 2 uA | TX: 610 mA / RX: 17 mA / Sleep: 2 uA | TX: 610 mA / RX: 17 mA / Sleep: 2 uA |
| Dimensions / Package | 40.5 x 25 mm / SMD | 40.5 x 25 mm / SMD | 40.5 x 25 mm / SMD |
| Operating Temperature | -40 to +85 degrees C | -40 to +85 degrees C | -40 to +85 degrees C |
| Operating parameter | Performance | Remark |
|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band |
| Tx power | 30 dBm | - |
| Receiving sensitivity | -148dbm | Air data rate is 2.4kbps |
| Air data rate | 0.3k~62.5kbps | Controlled via user’s programming |
| Distance for reference | 10000m | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| Size | 40.5*25 mm | - |
| Antenna | IPEX/stamp hole | 50 ohm impedance |
| Communication interface | UART | - |
| Package | SMD | - |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 5.0 | 5.5 | V | ≥5.0 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, It is recommended to add level conversion |
| TX current | - | 610 | - | mA | Instant power consumption |
| RX current | - | 17 | - | mA | - |
| Sleep current | - | 2 | - | μA | Software is shut down |
| Operating temperature | -40 | - | +85 | ℃ | - |
Practical Application Scenarios
1. Smart Agriculture Irrigation and Environmental Monitoring Networks
In large-scale agricultural telemetry, orchard sensor nodes require long-range wireless data links to bypass dense foliage without installing costly cellular infrastructure. The Ebyte E22-400T30S module interfaces directly via TTL UART with microcontrollers connected to soil moisture sensors, weather stations, and solenoid valve controllers. Utilizing Semtech SX1262 LoRa chirp spread spectrum technology, the module delivers dependable telemetry across a 10km line-of-sight range while maintaining low power consumption down to 2uA in sleep mode, making it ideal for battery-operated solar node deployments.
2. Remote Smart Substation Data Acquisition and AMR Systems
Electric utility automation systems require stable sub-GHz telemetry in high electromagnetic interference environments. Integrated into remote terminal units (RTUs) or smart meters, the E22-400T30S operates within the 410.125 to 493.125MHz frequency band with a 30dBm transmission power output. It reliably forwards Modbus RTU serial packets to an industrial Ebyte LoRa gateway server, overcoming severe metal structural shadowing in substations while ensuring uninterrupted Automatic Meter Reading (AMR) data flow.
3. Industrial Pipeline Monitoring and Leakage Detection Systems
Oil, gas, and municipal water pipeline infrastructure extends over vast geographically dispersed corridors where wiring is unfeasible. The E22-400T30S serves as an embedded wireless transceiver inside pipeline pressure, temperature, and flow monitoring nodes. Operating across wide industrial temperature ranges (-40 to +85 degrees C), it establishes secure point-to-point or point-to-multipoint telemetry links, allowing real-time status reporting back to a central SCADA master station without packet loss.
FAQ Section
1. How does the SX1262-based E22-400T30S compare with older SX1278/SX1276 LoRa modules in terms of power and performance?
The Semtech SX1262 transceiver architecture used in the E22-400T30S delivers superior power efficiency and longer range compared to legacy SX1278/SX1276 solutions. It features improved receiving sensitivity down to -148dBm and significantly reduced power consumption in receiving and sleep modes (down to 2uA). Additionally, the module integrates a temperature-compensated crystal oscillator (TCXO), maintaining stable frequency alignment and higher communication reliability under extreme temperature fluctuations ranging from -40 to +85 degrees C.
2. Can the UART interface of the E22-400T30S connect directly to a 5V microcontroller or PLC without damage?
Yes. The E22-400T30S supports UART communication level compatibility with both 3.3V and 5V TTL systems. However, to maintain peak output power at 30dBm and optimize circuit power efficiency, the power supply voltage (VCC) must be supplied at 5.0V DC minimum (2.3V to 5.5V operational range). For direct connection with 5V logic controllers, using level conversion circuits or resistor isolation on the TXD/RXD lines is recommended for long-term industrial hardware protection.
3. What antenna options are available for the E22-400T30S to achieve the advertised 10km transmission range?
The module provides dual hardware antenna connection methods: an IPEX generation 1 connector and a stamp hole pad with a 50 Ohm impedance matching design. To achieve the 10km benchmark distance, testing conditions require a clear line-of-sight environment, an air data rate set to 2.4kbps, an antenna height of 2.5 meters, and a gain of at least 5dBi. Customers can select options pre-packaged with internal flexible PCB antennas (FPC) or high-gain external rubber duck antennas depending on enclosure space and range targets.
4. Does the E22-400T30S support AT command configuration and dynamic air data rate adjustment?
Yes. The E22-400T30S supports configuration via standard AT commands or user configuration software through its UART port. Engineers can dynamically adjust operating parameters including the operating frequency (410.125 to 493.125MHz), air data rate (0.3kbps to 62.5kbps), transmit power levels, communication key encryption settings, and operating modes (such as WOR wake-on-radio mode for battery savings) to match customized embedded firmware requirements.
