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E22-400T30S LORA UART TRANSCEIVER: SMD wireless serial module operates from 410.125MHz to 493.125MHz, covering compatible 433MHz and 470MHz ISM-band applications through a UART TTL interface.
30DBM 1W RF OUTPUT: Provides up to 30dBm transmitter output when supplied with at least 5V. The permitted module supply range is 3.3–5.5V, but reduced supply voltage may prevent full rated RF output.
-147DBM RECEIVER SENSITIVITY: Achieves supplier-specified sensitivity up to -147dBm at a 2.4kbps air data rate. Programmable 2.4–62.5kbps air rates support application-specific range, speed and latency settings.
UP TO 10KM TESTED RANGE: The reference distance was measured in an open, unobstructed area using a 5dBi antenna mounted approximately 2.5m high at a 2.4kbps air data rate. Actual range depends on the complete RF installation.
3.3V UART LOGIC AND SMD FORMAT: Uses 3.3V communication levels; apply level conversion when connecting an incompatible 5V TTL host. The 40.5 × 25mm module provides IPEX and stamp-hole antenna options.
The Elecbee E22-400T30S is a long-range LoRa wireless serial transceiver module designed for embedded UART communication. It operates from 410.125MHz to 493.125MHz and supports compatible 433MHz and 470MHz ISM-band applications.
The module provides up to 30dBm, approximately 1W, RF output when operated from a suitable power supply. Its programmable air data rate allows system designers to balance communication distance, transmission speed and response time.
Model: E22-400T30S
Product Type: LoRa wireless UART transceiver module
Operating Frequency: 410.125–493.125MHz
Common Frequency Bands: 433MHz and 470MHz
Default Frequency: Approximately 433.125MHz
Maximum Transmit Power: 30dBm, approximately 1W
Receiver Sensitivity: Up to -147dBm at 2.4kbps
Air Data Rate: 2.4–62.5kbps, programmable
Supplier-Tested Distance: Up to 10km under specified conditions
Communication Interface: UART TTL
Antenna Interface: IPEX or RF stamp hole
Equivalent RF Impedance: Approximately 50Ω
RF Chip Note: The supplied draft identifies an SX1268 chip, while different manufacturer documents contain SX1262 and SX1268 references. The exact chip has therefore been omitted from this listing until the delivered hardware revision is confirmed.
Protocol Note: The E22-400T30S uses LoRa spread-spectrum modulation. This does not automatically make it a complete LoRaWAN modem; LoRaWAN compatibility depends on the host software and network implementation.
The 10km reference distance was measured under the following conditions:
Environment: Open, clear and unobstructed area
Antenna Gain: 5dBi
Antenna Height: Approximately 2.5m
Air Data Rate: 2.4kbps
Actual communication distance may be reduced by buildings, terrain, interference, antenna mismatch, cable loss, installation height, supply stability, higher data-rate settings and local RF-power limits.
Supply Voltage: 3.3–5.5V DC
Typical Supply Voltage: 5V DC
Full-Power Requirement: At least 5V for rated transmitter output
UART Communication Level: 3.3V
Typical Transmit Current: Approximately 650mA instantaneous
Typical Receive Current: Approximately 16mA
Specified Sleep Current: Approximately 2µA
Operating Temperature: -40°C to +85°C
Operating Humidity: 10–90% RH
Storage Temperature: -40°C to +125°C
Power-Supply Requirement: Use a regulated supply capable of supporting transmitter-current peaks without excessive voltage drop. Place suitable bypass and bulk capacitance close to the module according to the manufacturer’s reference design.
Logic-Level Warning: The module power input and UART logic are separate specifications. Use 3.3V UART signals or suitable level conversion when the connected host does not provide compatible logic levels.
Module Dimensions: Approximately 40.5 × 25mm
Module Weight: Approximately 5.7 ± 0.1g
Mounting Format: SMD with stamp-hole pads
Antenna Options: IPEX connector or RF stamp-hole output
Follow the manufacturer’s recommended PCB footprint, grounding and RF-layout guidance. Keep the antenna feed short, maintain the intended impedance and provide adequate ground clearance where required.
The E22-400T30S is suitable for compatible wireless telemetry, remote sensors, industrial data acquisition, environmental monitoring, automation equipment, smart metering and embedded point-to-point communication.
Antenna Required: Connect a correctly matched antenna before enabling RF transmission.
Frequency Regulations: Configure operating frequency and RF power according to local regulations.
Power Supply: Provide sufficient current for approximately 650mA transmitter peaks.
UART Logic: Use 3.3V communication signals or suitable level conversion.
Distance: Treat 10km as an open-area reference test rather than a guaranteed range.
Package Contents: 1 × Elecbee E22-400T30S LoRa UART RF Transceiver Module
Not Included: External antenna, development board, power supply, UART adapter and connecting wires.
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