E22-230T22D Lora Serial Port Modül
| Main parameter | Description | Remark |
|---|---|---|
| Distance for reference | 5kM | Test condition: clear and open area, antenna gain: 5dBi, antenna height: 2.5m, air data rate: 2.4k bps |
| TX length | 240 Byte | Can be configured via command as 32/64/128/240 bytes per packet to transmit |
| Buffer | 1000 Byte | - |
| Modulation | LoRa | New generation LoRa modulation technology |
| Communication interface | UART | TTL level |
| Package | DIP | - |
| Size | 21*36 mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Main parameter | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|
| Operating voltage | 2.3 | 5 | 5.5 | V | ≥5.0V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, It is recommended to add level conversion |
| Operating temperature | -40 | - | +85 | ℃ | Industrial design |
| Operating frequency | 220.125 | - | 236.125 | MHz | Support ISM band |
| TX current | - | 107 | - | mA | Instant power consumption |
| RX current | - | 11 | - | mA | - |
| Sleep current | - | 2 | - | μA | Software is shut down |
| Max Tx power | 21.5 | 22.0 | 22.5 | dBm | - |
| Receiving sensitivity | -146 | -147 | -148 | dBm | Air data rate is 0.3k bps |
| Air data rate | 0.3k | 2.4k | 15.6k | bps | Controlled via user's programming |
| Serial Number |
pin | Pin direction | Remark |
| 1 | M0 |
Input (very weak pull-up) |
In conjunction with M1, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded). |
| 2 | M1 | Input (very weak pull-up) |
In conjunction with M0, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded). |
| 3 | RXD | Input |
TTL serial port input, connected to the external TXD output pin; |
| 4 | TXD | Output |
TTL serial port output, connected to the external RXD input pin; |
| 5 | TO | Output |
Used to indicate the module's working status; When the user wakes up the external MCU, it outputs a low level during the power-on self-test initialization period; (this level can be left floating). |
| 6 | VCC | Input |
Module power supply positive reference, voltage range: 3.0～5.5V DC |
| 7 | GND | Input |
Module ground wire |
| 8 | Fixing hole |
Mounting hole (connected to GND on the module) |
|
| 9 | Fixing hole |
Mounting hole (connected to GND on the module) |
|
| 10 | Fixing hole |
Mounting hole (connected to GND on the module) |
