The Ebyte E80-900M2213S is a multi-band dual-frequency SMD LoRa wireless transceiver module based on the Semtech LoRa Connect LR1121 transceiver chip, delivering 22dBm (Sub-GHz, 5.6km) and 13dBm (2.4GHz, 2.6km) output power with LR-FHSS and satellite S-band support via SPI interface.
| Technical Parameter | Sub-GHz Band Specifications | 2.4GHz ISM Band Specifications |
|---|---|---|
| Main IC Chipset | Semtech LR1121IMLTRT (LoRa Connect Series) | |
| Working Frequency | 850 to 930 MHz (Programmable 410-493MHz) | 2400 to 2500 MHz |
| Maximum Transmit Power | 22 dBm (21.5 dBm nominal adjustable) | 13 dBm (adjustable via firmware) |
| Receiving Sensitivity | -136 dBm (BW=125kHz, SF=9) | -129 dBm (BW=406kHz, SF=7) |
| Reference Distance | Up to 5.6 km (3.5dBi Antenna, 2.4kbps) | Up to 2.6 km (5dBi Antenna, 2.4kbps) |
| Peak Transmit Current | 125 mA (at 868/915MHz) | 35 mA |
| Receiving Current | 9.5 mA | 9.0 mA |
| Supply Voltage & Logic Level | 1.8V to 3.7V DC (3.3V recommended), SPI Logic: 3.3V | |
| Crystal Oscillator & Sleep Current | Active Temperature Compensated Crystal (TCXO 32MHz), Sleep Current: 10 uA | |
| Antenna Interface & Package | Dual IPEX-1 / Stamp Hole, SMD Package, Dimensions: 26.0 x 16.0 x 3.0 mm | |
| RF parameters | Parameter value | Remark |
| Working frequency band (MHz) | 410-493 | @Sub-GHz, users can program the module to work at different frequencies |
| 2400-2500 | @2.4GHz, users can program the module to work at different frequencies | |
| Blocking power (dBm) | 10 | Less likely to be burned if used at close range |
| Maximum transmit power (dBm) | 21.5 | @Sub-GHz, user can adjust the output power through programming |
| 13 | @2.4GHz, user can adjust the output power through programming | |
| Receiving sensitivity (dBm) | -136 | @Sub-GHz，BWL=125kHz, SF=9 |
| -129 | @2.4GHz，BWL=406kHz, SF=7 | |
| Reference communication distance (km) | ≤5.6 | @Sub-GHz, clear and open environment, antenna gain 3.5dBi, antenna height 2.5 meters, air rate 2.4kbps |
| ≤2.6 | @2.4GHz, clear and open environment, antenna gain 5dBi, antenna height 2.5 meters, air rate 2.4kbps |
| Electrical parameters | minimum value | Typical value | maximum value | Remark |
| Working voltage (V) | 1.8 | 3.3 | 3.7 | ≥3.3V can guarantee the output power. If it exceeds 3.8V, there is a risk of burning. |
| Communication level (V) | - | 3.3 | - | There is a risk of burning when using 5V TTL. Users should use the conversion circuit rationally. |
| Emission current (mA) | - | 120 | - | @433/470MHz, instantaneous power consumption |
| - | 125 | - | @868/915MHz, instantaneous power consumption | |
| - | 35 | - | @2.4GHz, instantaneous power consumption | |
| Receive current (mA) | - | 9.5 | - | @Sub-GHz |
| - | 9 | - | @2.4GHz | |
| Sleep current (μA) | - | 10 | - | Software shutdown, all radio frequencies do not work |
| Working temperature (℃) | -40 | - | 85 | Industrial grade design |
| Working humidity (%rh) | 10 | - | 90 | - |
| Storage temperature (℃) | -50 | - | 150 | - |
| Hardware parameters | Parameter value | Remark |
| IC full name | LR1121IMLTRT | SEMTECH official website lead-free product number |
| Crystal frequency (MHz) | 32 | The module has built-in active temperature compensated crystal oscillator |
| Module size (mm) | 26.0*16.0*3.0 | length*width*height |
| Antenna form | IPEX-1/stamp hole | IPEX 1st generation socket, Sub-GHz/2.4GHz dual antenna interface design |
| Communication interface | SPI | Communication level 1.8-3.7V, it is recommended to use 3.3V to ensure data reliability |
| Packaging method | Patch/stamp hole | The pin spacing is 1.27mm. Please see Chapter 3 for detailed size information. |
| Weight(g) | 1.85 | - |
Practical Application Scenarios
1. Global Supply Chain Cold Chain Logistics Tracking
In cross-border asset monitoring, freight containers transition across terrestrial sub-GHz regional bands and global maritime routes. The E80-900M2213S uses its Semtech LR1121 dual-band architecture to automatically shift between 868MHz/915MHz regional Sub-GHz links for ground hub reporting and the globally unlicensed 2.4GHz ISM/LR-FHSS band during transit. When integrated into battery-powered trackers along with Ebyte low-power GNSS positioning modules, it enables uninterrupted telematics telemetry with minimal energy consumption.
2. Smart Agriculture and Remote Livestock Tracking
In large-scale agricultural environments where topography blocks line-of-sight signals, the 22dBm Sub-GHz transmission delivers long-range penetration up to 5.6km to gather sensor data like soil moisture and animal health metrics. Near farm headquarters or central gateways, the module switches to 2.4GHz LoRa mode (consuming only 35mA during transmission) for high-bandwidth local telemetry. This dual-band capability reduces gateway deployment density and extends node battery lifetime.
3. Distributed Solar PV Inverter & Grid Telemetry
Industrial photovoltaic plants require robust anti-interference communication in crowded RF environments. Utilizing long-range frequency hopping spread spectrum (LR-FHSS) technology, the E80-900M2213S maintains high link budget connections even under severe co-channel interference from high-voltage inverters. Connected via high-speed SPI to host MCUs, it provides real-time telemetry from edge sensors back to Ebyte industrial Modbus DTU gateways for reliable SCADA integration.
FAQ Section
1. Why does the LR1121 chip offer both Sub-GHz and 2.4GHz LoRa frequencies on one single module?
The dual-band implementation solves global radio regulatory compliance and bandwidth bottlenecks. Sub-GHz bands (850-930MHz) deliver superior obstacle penetration and long transmission distance up to 5.6km for outdoor sensor networks. Meanwhile, the 2.4GHz band provides a worldwide unlicensed frequency spectrum with higher data throughput and smaller antenna form factors, allowing developers to create a single hardware SKU deployable anywhere globally without redesigning RF front-ends.
2. What logic level voltage is required for the SPI interface and how should I power the module?
The module's operating voltage range is 1.8V to 3.7V, with 3.3V strongly recommended to guarantee full 22dBm output power and SPI data reliability. Exceeding 3.8V will cause permanent hardware damage. The SPI logic level is strictly rated at 3.3V; if interfacing with 5V microcontrollers like traditional Arduino boards, engineers must use active level shifters to prevent over-voltage damage to the LR1121 logic gates.
3. How does the integrated TCXO crystal oscillator improve communication performance in extreme temperatures?
The E80-900M2213S incorporates an industrial-grade 32MHz active temperature-compensated crystal oscillator (TCXO). Standard crystals suffer from frequency drift when operating across wide temperature ranges (-40 to +85 degrees Celsius), causing RF mismatch and dropped packets in narrowband LoRa transmissions. The TCXO guarantees high frequency stability, allowing ultra-narrowband channels and reliable long-range communication under harsh outdoor industrial conditions.
