[Size]：25*40.5mm
[Product weight]：5.8±0.1g
[Frequency]：850.125~930.125MHz
[Distance]：10km
[Power]：30dBm
[Introduction]：E22-900T30S is a new generation of LoRa wireless module, based on the wireless serial port module (UART) of SEMTECH's LoRa solution, with multiple transmission modes.
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency band | 850.125 to 930.125MHz | Support ISM band |
| Transmit power | 30 dBm | - |
| Receiving sensitivity | -147dbm | - |
| Air speed | 2.4 K ~62.5 KBPS | User programming control |
| Measured distance | 10km | Clear and open, antenna gain 5dBi, antenna height 2.5 meters, air speed 2.4 KBPS |
| Hardware Parameter | Value | Remark | |
|---|---|---|---|
| Size | 25 * 40.5 mm | ||
| Antenna form | IPEX/Stamp hole | Equivalent impedance is about 50 ω | |
| Communication port | UART serial port | TTL level | |
| Package | Patch type |
| Electrical parameter | Min. | Typ. | Max. | Unit | Condition | |
|---|---|---|---|---|---|---|
| Tower supply voltage | 3.3 | 5.0 | 5.5V | ≥5.0V can ensure the output power | ||
| Communication level | - | 3.3 | - | V | Using 5V TTL recommended level conversion | |
| Emission current | - | 650 | - | MA | Instantaneous power consumption | |
| Receiving current | - | 16 | - | mA | ||
| Sleep current | - | 2.0 | - | uA | Software is disabled | |
| Working temperature | -40 | 20 | +85 | ℃ | Industrial design | |
| Working humidity | 10 | 60 | 90 | % | ||
| Storage temperature | -40 | 20 | +125 | ℃ |
| Pin No. | Pin Name | Pin Direction | Pin Function |
| 1 | GND | Input | Module ground |
| 2 | VCC | Input | Module power positive reference, voltage range:3.3~5.5V DC |
| 3 | AUX | Output | Used to indicate the working status of the module; |
| For user to wakes up the external MCU and it outputs low level during power-on self^check initialization; (can be left floating) | |||
| 4 | TXD | Output | TTL UART outputs, connects to external RXD input pin. |
| 5 | RXD | Input | TTL UART inputs, connects to external TXD output pin. |
| 6 | Ml | Input (weak pull-up) | Work with MO to decide 4 working modes of module (not float, if not used： could be grounded). |
| 7 | MO | Input (weak pull-up) | Work with Ml to decide 4 working modes of module (not float, if not used： could be grounded). |
| 11 | ANT | Output | Antenna interface (High frequency signal output, 50 ohm characteristic impedance ) |
| 12 | GND | - | Fixed ground |
| 13 | GND | - | Fixed ground |
| 14 | GND | - | Fixed ground |
| 18 | NC | - | NC |
| 19 | NC | - | NC |
| 20 | NC | - | NC |
| 21 | NC | - | NC |
| 22 | RESET | Input | Module reset pin, low level trigger, it is recommended that customers use a single chip microcomputer connection, reset processing and resume work in unexpected situations |
| 23 | GND | - | Fixed ground |
| 24 | NC | - | NC |
