[Frequency]：862～930MHz
[Power]：30dBm
[Distance]：8km
[Size]：24*43mm
[Product weight]：9±0.1g
[Introduction]：E32-900T30D is a wireless serial port module (UART) based on SEMTECH's LoRa solution. It has a variety of transmission modes, working at 862MHz~931MHz, LoRa spread spectrum technology, and TTL output.
| Main parameter | Description | Remark |
| Distance for reference | 8kM | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| TX length | 58Btye | Maximum capacity of single package, automatic sub-packing after exceeding. |
| Buffer | 512Btye | - |
| Modulation | LoRa™ | - |
| Communication interface | TTL | @3.3V |
| Package | DIP | - |
| Connector | DIP | 1*7*2.54mm spacing |
| Size | 24*43 mm | - |
| Antenna | SMA-K | 50 ohm impedance |
| Main parameter | Min | Typ. | Max. | nit | Remark |
| Operating voltage | 3.3 | 5 | 5.5 | V | ≥5.5 V 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（ | 862 | - | 931 | MHz | Support ISM band |
| Transmitting current | - | 650 | - | mA | Instant power consumption |
| Receiving current | - | 25 | - | mA | - |
| Turn-off current | - | 5 | - | μA | Software is shut down |
| Max Tx power | - | 30 | - | dBm | - |
| Receiving sensitivity | -145 | -147 | -148 | dBm | Air data rate is 2.4kbps |
| No. | Item | Direction | Remark |
|---|---|---|---|
| 1 | M0 | Input（weak pull-up） | With M1, the four working modes of the module can be determined (it cannot be suspended, and it can be grounded if it is not used). |
| 2 | M1 | Input（weak pull-up） | With M0, the four working modes of the module can be determined (it cannot be suspended, and it can be grounded if it is not used). |
| 3 | RXD | Input | TTL UART input ,Connect to external TXD output pins; Can be configured as drain open circuit or pull up input, see parameter Settings |
| 4 | TXD | Output | TTL UART output, Connect to external RXD input pin; Can be configured as drain open circuit or push - pull output, see parameter Settings |
| 5 | AUX | Output | Used to indicate the working status of the module; The user wakes up the external MCU and outputs low level during self-test initialization; Can be configured as drain open output, or push-pull output, see parameter Settings(can be suspended) |
| 6 | VCC | Input | Positive reference of module power supply, voltage range: 3.3v ~ 5.5V DC |
| 7 | GND | Input | Ground |
| 8 | Fix hole | - | Fix hole |
| 9 | Fix hole | - | Fix hole |
| 10 | Fix hole | - | Fix hole |
| 11 | Fix hole | - | Fix hole |
