E220-400T22D LoRa Wireless Module
The E220-400T22D is a compact LoRa wireless module featuring Semtech's LLCC68 chip, offering 22dBm transmission power, 5km range, and UART interface for seamless IoT integration.
Key Features
Long-Range Communication
Utilizes LoRa spread spectrum technology for reliable 5km line-of-sight transmission in the 410-493MHz ISM band.
Dual Voltage Compatibility
TTL-level UART interface supports both 3.3V and 5V microcontroller systems without level shifting.
Industrial-Grade Design
Robust SMA-K antenna connector ensures stable signal transmission in harsh environments.
Plug-and-Play Connectivity
DIP form factor with standard 21x36mm footprint for rapid prototyping and integration.
Technical Specifications
RF Parameters
- IC: Semtech LLCC68
- Frequency Range: 410.125-493.125MHz
- Default Frequency: 433.125MHz
- TX Power: 22dBm (adjustable)
Physical Dimensions
- Size: 21×36mm
- Weight: 7.5g ±0.1g
- Antenna: SMA-K (male outer thread/female inner pin)
Interface & Protocol
- Communication: UART TTL
- Modulation: LoRa (Long Range)
Application Scenarios
Industrial Monitoring
Remote sensor networks for equipment status tracking in manufacturing facilities.
Agricultural Automation
Soil moisture monitoring and irrigation control across large farmland areas.
Smart Metering
Wireless data collection for water/gas/electricity meters in urban infrastructure.
Environmental Sensing
Distributed air quality and weather monitoring stations in remote locations.
| Main Parameter | Performance | Remark |
|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band |
| Tx power | 22 dBm | - |
| Receiving sensitivity | -127dbm | Air data rate 2.4kbps |
| Air data rate | 2.4k~62.5kbps | To control via user’s program |
| Distance for reference | 5Km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate:2.4kbps |
| Main Parameter | Performance | Remark |
|---|---|---|
| Size | 21 * 36mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Communication interface | UART | TTL Level |
| Package | DIP | - |
| Main Parameter | Min | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 3.3 | 5.5 | V | ≥3.3V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be burning down |
| TX current | - | 110 | - | mA | Instant power consumption @30dBm |
| RX current | - | 16.8 | - | mA | 5V Voltage |
| Sleep current | - | 5.0 | - | uA | Sleep mode |
| Operating temperature | -40 | 20 | +85 | ℃ | Industrial design |
