[Chip solution]：SX1262
[Transmission power]：22dBm
[Communication distance]：5km
[Product size]： 45.3*27.8*11.2mm
[Introduction]：E22-900T22U is a new generation of LoRa wireless spread spectrum module, based on the wireless serial port module designed by SEMTECH company SX1262 chip solution. It has a variety of transmission methods, works at 850.125~930.125MHz (default 868.125MHz), LoRa spread spectrum technology, 5V IO port voltage, and adopts USB standard packaging, which is convenient for users to develop and use. The communication is compatible with E22-230T/400T/900T series products, and supports a baud rate of 1200~115200 bps. Support functions such as wireless configuration, carrier sense, automatic relay, communication key, firmware upgrade, etc., support packet length setting, and provide customized development services.
| RF parameters | Parameter Value | Remark | ||
| E22-230T22U | E22-400T22U | E22-900T22U | ||
| Operating Frequency | 220.125MHz~236.125MHz | 410.125~493.125MHz | 850.125~930.125MHz | E22-400T22U supports ISM band |
| Transmitting power | 22dBm | Software adjustable, need user to develop their own settings | ||
| Acceptance sensitivity | -122dBm | Air rate 2.4 kbps | ||
| FIFO | 240 Byte | Packets of 32/64/128/240 bytes can be sent by command | ||
| Modulation method | LoRa | New generation LoRa modulation technology | ||
| Measured distance | 5 Km | Clear and open environment, antenna gain 5dBi, antenna height 2.5m, air rate 2.4kbps | ||
| Hardware Parameters | Parameter Value | Remark | ||
| E22-230T22U | E22-400T22U | E22-900T22U | ||
| Communication Interface | USB | - | ||
| Packaging method | 直插式 | - | ||
| Interface method | USB | - | ||
| Dimension | 45.3*27.8*11.2mm | ±0.2mm, plus housing with cap | ||
| Antenna Form | SMA-K | Male threaded bore, equivalent impedance approx. 50Ω | ||
| Product net weight | 8.4g | 士0.2g | ||
| E22-230T22U/E22-400T22U/E22-900T22U | |||||
| Electrical parameter | Minimu m value | Typical value | Maximum value | Unit | Remark |
| Supply Voltage | 4.8 | 5 | 5.5 | V | ≥5.0V guaranteed output power Over 5.5V permanently burns out the module |
| Emission current | - | 110 | - | mA | Instantaneous power consumption |
| Receiving current | - | 14 | - | mA | - |
| Operating temperature | -40 | 20 | 85 | ℃ | Industrial grade design |
| Working humidity | 10 | 60 | 90 | % | - |
| Storage temperature | -40 | 20 | 85 | ℃ | - |