E280-2G4T12S sx1280 lora module 2.4ghz Parameter Introduction
E280-2G4T12S is a wireless serial port module (UART) based on SEMTECH's SX1280 RF chip, featuring transparent transmission, operation in the 2.4GHz band, and support for LoRa, FLRC, and GFSK modulation technologies with TTL level output compatible with 3.3V and 5V IO voltages.
Key Features
Modulation & Transmission
- Supports LoRa, FLRC, and GFSK modulation
- High-speed continuous transmission at 460800 baud rate (no packet limitations)
- Supports 1kbps–2Mbps wireless data rates
Functional Capabilities
- Wireless ranging with ±2m accuracy
- RSSI signal strength detection
- Point-to-point/broadcast/channel monitoring modes
- Low-power mode for battery applications
Hardware Design
- Dual antenna options (PCB/IPEX)
- Industrial-grade operation (-40°C to +85°C)
- Data encryption and compression
Technical Specifications
Electrical Parameters
- Operating Voltage: 2.3V–5.5V DC
- Communication Level: TTL (5V TTL carries burn risk)
- Sleep Current: Software shutdown (μA range)
RF Performance
- Frequency Range: 2400–2500MHz (ISM band)
- Max TX Power: 12dBm (18mW), software adjustable
- RX Sensitivity: -130 to -134dBm at 1kbps
- Reference Distance: 3000m (clear line-of-sight)
Physical Dimensions
- Size: 17.5 × 28.7mm
- Weight: 2.3g ±0.1g
- Interface: 1.27mm pitch, SMD package
Application Scenarios
Industrial & IoT
- Smart home automation
- Industrial sensors and monitoring
- Security/positioning systems
Consumer & Mobility
- Agricultural/drone positioning
- Wireless game controllers
- Medical/healthcare devices
- Automotive applications
| Main Parameters | Description | Remark |
|---|---|---|
| Reference distance | 3000m | Clear and open environment,antenna gain 5dBi,antenna height 2.5 meters,air rate 1kbps |
| Launch length | 121 Btye 221 Btye |
Normal mode,using 1Mbps airspeed Continuous transmission mode |
| Interface method | 1.27mm | - |
| Modulation | GFSK LoRa FLRC |
- |
| Communication Interface | UART Serial port | TTL Level |
| Encapsulation method | SMD | - |
| Dimensions | 17.5*28.7mm | - |
| Antenna interface | IPEX/PCB | Equivalent impedance is about 50Ω |
| Main Parameters | Min | Type | Max | Unit | Remark |
|---|---|---|---|---|---|
| Working voltage | 2.3 | 5 | 5.5 | V | ≥5.0V can guarantee output power |
| Communication level | - | 3.3 | - | V | Using 5V TTL is risky to burn |
| Working temperature | -40 | - | +85 | ℃ | ndustrial design |
| Working frequency | 2400 | - | 2500 | MHz | Support ISM frequency band |
| Emission current | - | 46 | - | mA | Instantaneous power consumption |
| Receiving current | - | 20 | - | mA | - |
| Sleep current | - | 8 | - | μA | Software shutdown |
| Maximum transmit power | 11.5 | 12 | 13.5 | dBm | - |
| Receiving sensitivity | -130 | -132 | -134 | dBm | Air rate is 1kbps |
| Air rate | 1k | 1k | 2M | bps | User programming control |
