The Ebyte E22-400T22D-V2 DIP LoRa UART wireless module adopts Semtech SX1268 chip, 410.125–493.125MHz ISM band default 433.125MHz, adjustable 22dBm transmit power, max 5km open-air LoS communication, TTL UART compatible with 3.3V & 5V MCU IO, 2.3–5.5V wide supply, ultra-low 2μA sleep current, -40 to 85 Celsius industrial temp, supports WOR wake, LBT, relay networking and AT command configuration for embedded Modbus sensor IoT nodes.
| Parameter Category | Parameter Item | Specification Value |
|---|---|---|
| Basic Info | Model Number | E22-400T22D-V2 |
| Basic Info | Core RF Chip | Semtech SX1268 LoRa Chip |
| Basic Info | Package & Size | DIP through-hole, 21mm * 36mm |
| Basic Info | Net Weight | 6.7g |
| RF Performance | Frequency Range | 410.125MHz ~ 493.125MHz, default 433.125MHz |
| RF Performance | Max Transmit Power | 22dBm |
| RF Performance | Max LoS Distance | 5000m with 5dBi antenna |
| RF Performance | Receiving Sensitivity | -148dBm @ 0.3kbps air rate |
| RF Performance | Air Data Rate | 0.3kbps ~ 62.5kbps adjustable |
| Communication | UART Level | TTL 3.3V, compatible with 5V MCU IO |
| Communication | Data Buffer | 1000 bytes total cache, max 240 bytes per packet |
| Electrical Spec | Supply Voltage | 2.3V ~ 5.5V DC |
| Electrical Spec | TX Working Current | 110mA typical |
| Electrical Spec | Sleep Current | 2μA typical |
| Hardware Interface | Antenna Port | SMA-K 50Ohm impedance |
| Core Functions | Built-in Features | WOR wake, LBT, multi-hop relay, data encryption, AT config |
| Environment | Operating Temp | -40 Celsius ~ 85 Celsius |
| Main Parameters | Value | Remarks | |
| Min. | Max | ||
| Power supply（V） | 0 | 5.5 | Voltage over 5.5V will cause permanent damage to module |
| Blocking power（dBm） | - | 10 | Chances of burn is slim when modules are used in short distance |
| Operating temperature（℃） | -40 | +85 | Industrial grade |
| Main Parameters | Value | Remarks | ||
| Min. | Typical | Max | ||
| Operating voltage（V） | 2.3 | 5.0 | 5.5 | ≥5.0 V ensures output power |
| Communication level（V） | - | 3.3 | - | For 5V TTL, it may be at risk of burning down |
| Operating temperature（℃） | -40 | - | 85 | Industrial design |
| Operating frequency（MHz） | 410.125 | 433.125 | 493.125 | Support ISM band |
| TX Current(mA) | - | 110 | - | Instant power consumption |
| RX current（mA） | - | 12 | - | - |
| Sleep current（μA） | - | 2 | - | Software is shut down |
| Max Tx power（dBm） | 21.5 | 22.0 | 22.5 | - |
| Receiving sensitivity（dBm） | -146 | -147 | -148 | Air data rate is 0.3 kbps |
| Air data rate（bps） | 0.3k | 2.4k | 62.5k | Controlled via user’s programming |
| Main parameter | Description | Remarks |
| Distance for reference | 5km | Test condition：clear and open area, antenna gain: 5dBi，antenna height:2.5m，air data rate: 2.4kbps |
| TX length | 240 Byte | Can be configured via command as 32/64/128/240 bytes per packet totransmit |
| Buffer | 1000 Byte | - |
| Modulation | LoRa | New generation LoRa modulation technology |
| Communication interface | UART | TTL level |
| Package | DIP | - |
| Connector | 1*7*2.54mm | - |
| Size | 21*36 mm | - |
| Antenna | SMA | 50 ohm impedance |
Practical Application Scenarios
1. Rural Agricultural LoRa Sensor Nodes for Soil & Meteorology Monitoring
Global agritech OEMs solder E22-400T22D-V2 DIP modules onto low-power soil PH, humidity and weather sensor PCBs. The 2μA ultra sleep current extends lithium battery service life for off-grid farm equipment, 433MHz band delivers strong diffraction through crop foliage, and 5km LoS range covers large farm plots. It wirelessly transmits Modbus sensor data to EWD95M DIN rail LoRa DTUs installed in farm control cabins for cloud irrigation automatic scheduling.
2. Factory PLC Wireless Modbus RTU Remote Debug Nodes
European automation engineers integrate this SX1268 LoRa module into field PLC slave extension boards. TTL UART works seamlessly with both 3.3V and 5V industrial MCUs, LoRa spread spectrum suppresses motor frequency converter electromagnetic noise, and relay networking expands coverage across multi-story production workshops. It pairs with E810-U41C multi-channel USB-to-RS485 converters on central monitoring PCs for batch equipment parameter reading.
3. Mountain Reservoir & Underground Pipeline Hydrological Telemetry
Overseas water conservancy contractors embed E22-400T22D-V2 into water level and pipeline pressure sensor terminals deployed on mountain slopes. Wide -40 to 85 Celsius temperature tolerates freezing winter and high-temperature summer mountain environments, low-frequency 433MHz waves penetrate soil and concrete barriers, and WOR wireless wake reduces frequent data transmission power consumption for long-term unattended monitoring.
4. Urban Smart Water/Gas Meter Wireless Collection Endpoints
Municipal energy manufacturers build compact meter reading boards with this DIP LoRa module for distributed residential smart meters. 2.3–5.5V wide voltage adapts different meter internal lithium power supplies, built-in data encryption prevents meter consumption data interception, and compatible communication parameters allow direct networking with E90-DTU 400 series industrial radio base stations in community control rooms.
5. Mining Tunnel Safety Gas & Conveyor Belt Sensor Terminals
Mining safety equipment makers use E22-400T22D-V2 on underground gas concentration and conveyor status detection circuit boards. -148dBm ultra-high receiving sensitivity stabilizes signals through rock and metal tunnel obstacles, LBT channel detection avoids RF interference from mining power equipment, and compact 21*36mm DIP size fits narrow sensor housing limited internal space.
FAQ Section
1. What MCU IO voltage levels can E22-400T22D-V2 TTL UART directly connect to?
This LoRa module uses standard 3.3V TTL signal level, with internal protection circuit supporting direct connection to both 3.3V and 5V MCU IO pins without external level shifting resistors or conversion chips, simplifying embedded hardware PCB design for IoT sensor devices.
2. What is the minimum operating voltage and maximum safe input voltage of this SX1268 LoRa module?
The normal working voltage range is 2.3V to 5.5V DC. Input voltage exceeding 5.5V will cause permanent irreversible damage to the internal RF chip and peripheral circuits, users must match lithium battery or regulated power supplies within the specified voltage range.
3. What anti-interference and power-saving built-in functions does E22-400T22D-V2 integrate?
It integrates LBT listen-before-talk channel monitoring to avoid co-frequency RF collision, WOR wireless periodic wake-up to cut idle power consumption, multi-hop relay to extend transmission distance, and user-defined communication data encryption to prevent wireless data theft in open industrial environments.
4. Can E22-400T22D-V2 communicate with Ebyte 400MHz series DIN rail DTUs without parameter modification?
Yes, all E22 400MHz band modules share identical LoRa modulation parameters, frequency channels and air rate gears with EWD95M, E90-DTU 400 series industrial radio DTUs. Engineers can build hybrid networks combining embedded sensor modules and cabinet-mounted DTU gateways without firmware upgrade.
5. What test conditions are required to reach the rated 5km maximum communication distance?
The 5km LoS test standard requires clear open terrain without buildings or hills, 5dBi high-gain external SMA antenna, antenna height set at 2.5 meters above ground, factory default 2.4kbps air data rate and full 22dBm transmit power output; distance will decrease with metal or vegetation obstacles.
