E22-400T22S LoRa spread spectrum UART LoRa solution RF low power consumption
[Frequency]：433MHz
[Power]：22dBm
[Size]：16*26mm
[Weight]：2.3±0.1g
[Introduction]：E22-400T22S is a wireless serial port module (UART) based on SEMTECH's LoRa solution radio frequency chip. It has a variety of transmission modes, working at 410.125MHz~493.125MHz, (default 433.125MHz), LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltages.
| Operating parameter | Performance | Remark |
|---|---|---|
| Operating frequency | 410.125~493.125MHz | Support ISM band |
| Tx power | 22 dBm | - |
| Receiving sensitivity | -147dbm | Air data rate is 2.4kbps |
| Air data rate | 0.3k~62.5kbps | Controlled via user’s programming |
| Distance for reference | 5500m | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| Size | 16 * 26 mm | - |
| Antenna | IPEX/stamp hole | 50 ohm impedance |
| Communication interface | UART | - |
| Package | SMD | - |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 5.0 | 5.5 | V | ≥5.0 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, It is recommended to add level conversion |
| TX current | - | 133 | - | mA | Instant power consumption |
| RX current | - | 11 | - | mA | - |
| Sleep current | - | 469 | - | μA | Software is shut down |
| Operating temperature | -40 | - | +85 | ℃ | - |
