E220P-400T22S LoRa spread spectrum technology wireless transmission monitoring
[Chip solution]：LLCC68
[Frequency]：410.125~493.125MHz
[Transmitter power]：22dBm
[Communication distance]：7km
[Size]：16*26mm
[Product weight]：2g±0.1g
[Introduction]：E220P-400T22S adopts the new generation of LoRa spread spectrum technology, a wireless serial port module (UART) designed based on LLCC68 RF chip solution, and a built-in LNA, active temperature compensated crystal oscillator and receiving limiter in the wireless module. Under ideal conditions, the communication distance can reach 7km (5.6km for E220-400T22S), with stronger anti-interference ability and longer receiving distance. It supports functions such as air wake-up, carrier monitoring, communication key, and sub-packet length setting, and can provide customized development services.
| Main parameter | Performance | Remarks |
|---|---|---|
| Distance for reference (km) | 7 | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| TX length (Byte) | 200 | Can be configured via command as 32/64/128/200 bytes per packet to transmit |
| Buffer (Byte) | 400 | - |
| Modulation | LoRa | New generation LoRa modulation technology |
| Communication interface | UART | TTL Level |
| Package | SMD | - |
| Size（mm） | 16*26 | - |
| Antenna | IPEX/stamp hole | 50 ohm impedance |
| Main parameter | Min. | Typ. | Max. | Unit | Remarks |
|---|---|---|---|---|---|
| Operating voltage | 3.3 | 5 | 5.5 | V | ≥5V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk of burning down |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
| Operating frequency | 410.125 | - | 493.125 | MHz | Support ISM band |
| TX current | - | 110 | - | mA | Instant power consumption @22dBm |
| RX current | - | 10 | - | mA | 5V |
| Sleep current | - | 3.5 | - | μA | Software is shut down |
| Max Tx power | 21 | 22 | 23 | dBm | - |
| Receiving sensitivity | -132 | -135 | -136 | dBm | Air speed 2.4 KBPS |
| Air data rate | 2.4 | 2.4 | 62.5 | kbps | Controlled via user’s programming |