E22-230T30D-V2 is a high-power 1W (30dBm) LoRa wireless serial port module (UART) based on the Semtech SX1262 chip. Operating in the 230MHz band, it offers superior diffraction and wall-penetration capabilities compared to higher frequency modules, making it ideal for ultra-long-range industrial telemetry in complex environments.
| Parameter | Technical Specification |
|---|---|
| Product Model | E22-230T30D-V2 |
| Core Chip | Semtech SX1262 LoRa |
| Frequency Band | 230MHz (Industrial / Utility Band) |
| Transmit Power | 30 dBm (approx. 1W) |
| Supply Voltage | 3.3V - 5.5V DC (Max 5.5V) |
| Operating Temp | -40°C to +85°C (Industrial Grade) |
| Antenna Port | SMA-K (50Ω Impedance) |
| Package Type | DIP (Through-hole) |
Download Manual
E22-230T30D-V2 Manual
pcb_E22-230T30D
3D files
Application Note
RF_setting_E22
Ebyte Company Profile
Technical Support Videos
Main parameter
| Main parameter | Description | Remark |
|---|---|---|
| Distance for reference | 5kM | Test condition: clear and open area, antenna gain: 5dBi, antenna height: 2.5m, air data rate: 2.4k bps |
| TX length | 240 Byte | Can be configured via command as 32/64/128/240 bytes per packet to transmit |
| Buffer | 1000 Byte | - |
| Modulation | LoRa | New generation LoRa modulation technology |
| Communication interface | UART | TTL level |
| Package | DIP | - |
| Size | 21*36 mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 5 | 5.5 | V | ≥5.0V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, It is recommended to add level conversion |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
| Operating frequency | 220.125 | - | 236.125 | MHz | Support ISM band |
| TX current | - | 107 | - | mA | Instant power consumption |
| RX current | - | 11 | - | mA | - |
| Sleep current | - | 2 | - | μA | Software is shut down |
| Max Tx power | 21.5 | 22.0 | 22.5 | dBm | - |
| Receiving sensitivity | -146 | -147 | -148 | dBm | Air data rate is 0.3k bps |
| Air data rate | 0.3k | 2.4k | 15.6k | bps | Controlled via user's programming |
Application
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Power Grid Monitoring & Smart Metering: In urban power distribution environments, high-frequency signals often struggle with concrete attenuation. The E22-230T30D-V2 utilizes the 230MHz band’s superior diffraction properties and 1W transmit power to penetrate multiple floors and metallic enclosures, ensuring stable data backhaul for smart meters.
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Underground Mine & Tunnel Communication: Traditional wireless modules suffer from limited range in enclosed subterranean spaces. By leveraging LoRa spread spectrum technology and 30dBm power, this module provides a resilient telemetry link for environmental sensors (O2, CH4) over several kilometers of tunnel length without frequent repeaters.
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Remote Agricultural Telemetry: For expansive farms where cellular coverage is absent, the E22-230T30D-V2 enables ultra-long-distance transmission for soil moisture and irrigation control systems. Its 30dBm output solves the path loss issue over heavy foliage and topographical obstacles across up to 10km+ ranges.
FAQ
Q: How should the power supply be designed to accommodate the peak current of the E22-230T30D-V2 during transmission?
A: When transmitting at the maximum 30dBm power level, the instantaneous current consumption of the E22-230T30D-V2 can reach approximately 600mA to 650mA. It is mandatory to use a power supply capable of delivering at least 1A of peak current. Furthermore, place a 100uF to 470uF low-ESR tantalum or electrolytic capacitor close to the VCC pin to prevent voltage ripples or dips that could cause frequency drift or module reset during the RF burst.
Q: Why is the 230MHz band preferred over 433MHz or 915MHz for specific industrial projects?
A: The primary advantage of the 230MHz frequency is its significantly longer wavelength, which results in better diffraction around physical obstacles and lower path loss through building materials. While 433MHz and 915MHz offer higher bandwidth potential, the 230MHz band used by the E22-230T30D-V2 is technically superior for penetrating thick walls and maintaining link budgets in high-density industrial plants or deep-indoor utility applications.
Q: What are the impedance matching considerations for the SMA-K antenna interface on this 1W module?
A: The antenna port is designed for a standard 50-ohm characteristic impedance. To ensure maximum power transfer and prevent damage to the SX1262 power amplifier stage, the connected antenna and coaxial cable must have a Voltage Standing Wave Ratio (VSWR) of less than 1.5 at 230MHz. Using an unmatched antenna will cause significant reflected power, which increases thermal stress on the module and can lead to permanent hardware failure at 30dBm output.
Q: Is the communication level compatible with both 3.3V and 5V microcontrollers?
A: The module's internal logic operates at 3.3V, but the I/O pins are designed with 5V tolerance on many E22 series variants. However, for the most reliable long-term industrial operation with a 5V MCU, it is recommended to use a simple series resistor or a dedicated logic level shifter. This prevents current injection into the module's ESD protection diodes, ensuring the signal integrity of the UART RXD and TXD lines remains within technical specifications.
