The EBYTE E80-400M2213S is a high-performance dual-band SMD LoRa transceiver module built on Semtech's third-generation LR1121 chip, supporting 410-493MHz, 2.4GHz, and satellite S-band frequencies with SPI control to deliver reliable multi-band global LPWAN connectivity over distances up to 5.6km at 21.5dBm and 2.6km at 13dBm.
| RF Parameter Item | E80-400M2213S Technical Specifications |
|---|---|
| Core RF Transceiver IC | Semtech LoRa Connect LR1121 (Third-Gen Ultra-Low Power) |
| Operating Frequency Bands | Dual-Band: 410 to 493 MHz (Sub-GHz) and 2.4 GHz ISM Band (Supports Satellite S-Band) |
| Maximum Transmit Power | Sub-GHz: 21.5 dBm / 2.4 GHz: 13 dBm |
| Reliable Communication Distance | Sub-GHz: 5.6 km / 2.4 GHz: 2.6 km (in open, unobstructed environments) |
| Supported Modulations | LoRa, GFSK, FSK, LR-FHSS (Long Range Frequency Hopping Spread Spectrum) |
| Host Control Interface | Standard Hardware SPI (Serial Peripheral Interface) |
| Onboard Reference Clock | 48 MHz High-Precision Low-Temperature Drift Crystal Oscillator (TCXO) |
| Physical Mounting Package | SMD (Surface Mount Device) |
| Module Dimensions | 26 * 16 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 Cold Chain Logistics and Asset Tracking
In multinational logistics, cargo containers encounter highly dynamic wireless environments as they transition from high-density sea hubs to land routes. The E80-400M2213S is ideal for tracking devices because it leverages both 2.4GHz LoRa (for local, high-bandwidth warehouse inventory scanning) and 410-493MHz Sub-GHz LoRa (for long-range regional tracking). When operating in isolated ocean lanes, the module can even be configured to link directly to Satellite S-Band networks, providing unbroken end-to-end global coverage.
2. High-Interference Smart Substation Grid Telemetry
Utility electrical grids are filled with intense, high-frequency electromagnetic fields that can disrupt standard radio signals. By integrating the E80-400M2213S into thermal sensors and circuit breaker monitoring systems, engineers gain access to the module's integrated 48MHz high-precision low-temperature drift crystal oscillator. This TCXO guarantees exceptional frequency stability, and when combined with LR-FHSS (Long Range Frequency Hopping Spread Spectrum) modulation, it enables telemetry to hop over high-voltage electrical noise without packet loss.
3. Smart Agriculture LPWAN Environmental Sensors
Large-scale farming operations use sensor networks that must transmit soil moisture, temperature, and atmospheric data over several kilometers of dense crop foliage. Using the E80-400M2213S in low-power sensor nodes allows engineers to program the optimal frequency band depending on regional regulations and crop density. It achieves up to 5.6km of communication range on Sub-GHz bands while drawing extremely low power in standby modes, preserving battery lifespans for several years.
FAQ Section
1. What are the primary structural and performance advantages of Semtech's third-generation LR1121 chip over legacy chips like the SX1262?
The LR1121 chip on the E80-400M2213S is a highly versatile, multi-band transceiver that integrates Sub-GHz, 2.4GHz ISM, and Satellite S-Band capabilities into a single silicon die. This design provides developers with global compliance without needing to swap physical RF layouts. Additionally, it natively supports LR-FHSS modulation, which delivers vastly superior interference resistance and high-density node capacity compared to previous-generation transceivers.
2. Why is the built-in 48MHz high-precision low-temperature drift crystal oscillator important for outdoor designs?
Standard crystal oscillators suffer from significant frequency drift when exposed to outdoor thermal swings, which can result in lost connections and degraded receiver sensitivity. The E80-400M2213S includes a high-precision, low-temperature drift crystal (TCXO) to maintain frequency alignment. This component ensures the module operates reliably under extreme conditions, preventing signal dropouts caused by environmental temperature fluctuations.
3. How does a hardware SPI module differ from UART modules, and how is the E80-400M2213S controlled?
The E80-400M2213S is a pure RF transceiver module with a hardware SPI interface, meaning it does not contain a pre-loaded serial application firmware. Instead of running on simple AT commands, a host microcontroller (such as an STM32, ESP32, or Raspberry Pi Pico) must drive the module by communicating directly with the LR1121 register set via the SPI bus. This architecture provides embedded developers with low-level register control to optimize transmission parameters and power modes.
4. Can this dual-band module transmit on the Sub-GHz and 2.4GHz frequencies simultaneously?
The E80-400M2213S relies on an integrated RF front-end architecture designed for time-division multiplexed (half-duplex) operations. While the hardware cannot transmit or receive on both bands at the exact same physical millisecond, the host microcontroller can easily switch the operating configuration of the LR1121 dynamically between Sub-GHz, 2.4GHz, and Satellite bands in real time.
