[Product weight]：5.6±0.1g
[Frequenc]：862~931MHz
[Power]：30dBm
[Distance]：8km
[Size]：25*40.5mm
[Introduction]：E32-900T30S is a wireless serial port module (TTL level) based on SEMTECH's lora solution, with transparent transmission, working in the 8 62~930MHz frequency band, and using LoRa spread spectrum technology
| The main parameters | minimum | maximum value | Remark |
|---|---|---|---|
| Supply voltage (V) | 0 | 5.5 | Exceeding 5.5 V permanently burns the module |
| Blocking power (dBm) | - | 10 | The probability of burning at close range is small |
| Working temperature ( ℃ ) | -40 | + 85 | Industrial grade |
| The main parameters | minimum | Typical value | maximu m value | Remark |
|---|---|---|---|---|
| Working voltage (V) | 3.3 | 5.0 | 5.5 _ _ | >5.5 V can cause permanent damage to the module ; |
| Communication level (V) | - | 3.3 | - | - |
| Working temperature ( ℃ ) | -40 | - | + 85 Industrial grade design | |
| Working frequency band (MHz) | 862 | - | 931 | - |
| Emission current (mA) | - | 650 | - | - |
| Receive current (mA) | - | 25 | - | - |
| Sleep current (μA) | - | 5 | - | - |
| Maximum transmit power (dBm) | - | 30 | - | - |
| Receive Sensitivity (dBm) | -145 | -147 | -148 | The air rate is 2.4kbps |
| The main parameters | Describe | Remark |
|---|---|---|
| reference distance | 8.0Km | Clear and open, antenna gain 5dBi, antenna height 2.5m, air rate 2.4kbps |
| Subcontracting | 58Btye | The maximum capacity of a single package, after it is exceeded, it will be automatically divided into packages |
| Cache capacity | 512Btye | - |
| Modulation | LoRa | - |
| Communication Interface | UART serial port | TTL level |
| Packaging method | - line | - |
| interface | Pin header plug-in | Spacing 1* 7 * 2.54mm |
| Dimensions | 25*40.5mm | - |
| Antenna interface | SMA-K | Characteristic impedance about 50 Ω |
| serial number | pin | Pin direction | Remark |
| 1 | GND | Input | Module ground |
| 2 | VCC | Input | Positive reference of module power supply, voltage range: 3.3～5.5V DC |
| 3 | AUX | output | Used to indicate the working status of the module; the user wakes up the external MCU, and the output is low during the initialization of the power-on self-test Level; (can be suspended) |
| 4 | TXD | output | TTL serial port output, connected to external RXD input pin; |
| 5 | RXD | enter | TTL serial port input, connected to the external TXD output pin; |
| 6 | M1 | Input (very weak pull-up) | Cooperate with M0 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 7 | M0 | Input (very weak pull-up) | Cooperate with M1 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 11 | ANT | output | Antenna interface (high frequency signal output, 50 ohm characteristic impedance) |
| 12 | GND | - | Fixedly |
| 13 | GND | - | Fixedly |
| 14 | GND | - | Fixedly |
| 18 | NC | - | Empty feet |
| 19 | NC | - | Empty feet |
| 20 | NC | - | Empty feet |
| 21 | NC | - | Empty feet |
| 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 | - | Empty feet |
