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EBYTE E22SSLT-LNN-NS-04
Product Name
E22 Series Industrial LoRa RF Module, 22 dBm
Product Introduction
The E22-xxxT22S / E22SSLT-style module is an industrial-grade LoRa wireless transceiver module based on Semtech SX1262 / SX1268 RF chips. It is used for long-range, low-power serial data transmission.
Detailed content
Technical Specifications
Frequency Variants:
E22-230T22S: 220.125–236.125 MHz
E22-400T22S: 410.125–493.125 MHz
E22-900T22S: 850.125–930.125 MHz
Transmit Power: 22 dBm
Air Data Rate: 2.4 kbps to 62.5 kbps depending on band
Modulation: LoRa
Operating Voltage: 2.7–5.5 V DC
Communication Level: 3.3 V TTL
Interface: UART
Antenna Port: IPEX or stamp-hole, 50 Ω
Temperature Range: -40 °C to +85 °C
Module Size: 26 × 16 mm
Weight: Approximately 1.95 g
Functional Features
Long-distance wireless UART bridge
Low power sleep mode
Watchdog auto-recovery
Parameter saving after power loss
Configurable address, channel, and air rate
Industrial-grade temperature range
Application Scenarios
Smart metering
Home automation
Building automation
Industrial wireless sensors
Remote control
Alarm and security systems
Working Principle
The module receives serial data from a microcontroller, modulates it using LoRa spread-spectrum technology, transmits it over RF, and the receiving module demodulates the signal back into UART data.
Structural Characteristics
SMD module
1.27 mm stamp-hole pads
On-board crystal and LoRa chip
Small rectangular RF PCB
Installation Requirements
Use 3.3 V logic level for UART
Connect suitable 50 Ω antenna
Avoid placing module inside fully shielded metal box without antenna outlet
Keep away from high-noise power circuits
Usage Notes
Do not supply above 5.5 V
Do not connect 5 V TTL directly to communication pins
Ensure clean power supply
Antenna mismatch will reduce range or damage RF stage
Maintain clearance from GPS, Wi-Fi, and cellular antennas when isolation is required
