[Chip Solution]：LoRa Solution
[Frequency]：220.125-236.125 MHz
[Transmission power]：22dBm
[Communication distance]： 5km
[Size]：45.3*27.8*11.2mm
[Product weight]：8.4±0.1g
[Introduction]：E22-230T22U is a new generation of LoRa spread spectrum module, a wireless serial port module designed based on SEMTECH's LoRa solution radio frequency chip. It has a variety of transmission methods, working at 220.125MHz~236.125MHz (default 230.125MHz), LoRa spread spectrum technology, 5V IO port voltage, and 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 baud rate of 1200~115200bps. Supports wireless configuration, carrier monitoring, automatic relay, communication keys, firmware upgrade and other functions, supports sub-packet length setting, and can provide customized development services.
| 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 | ℃ | - |
| 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 | ||