E32-T Serisi , LoRa RF Modül E32-400T20S3
E32-400T20S3
[IC] : SX1278
[Frequency] : 410~525MHz
[Power] : 10~20dBm
[Distance] : 3km
[Interface] : UART
[Weight] : 2.1±0.1g
[Introduction] : E32 series are UART wireless modules based on SX1276/SX1278 RF IC of SEMTECH with transparent transmission and LoRa spread spectrum technology. The modules 3.3V TTL output. SX1276/SX1278 support LoRa TM technology, The LoRa TM DSSS (direct sequence spread spectrum) technology features long range and strong anti-interference as well as strong data confidentiality. SX1276/SX1278 are considered as a milestone in terms of low speed data communication.
| Model | Interface | IC | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual |
| E32-400T20S3 | UART | SX1278 | 433M 470M | 20 | 3,0 | 0.3k~19.2k | SMD | 16 * 26 | LoRa spread spectrum | ✔ |
| E32-433T20DC | UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | DIP | 21*36 | LoRa spread spectrum | ✔ |
| E32-433T20DT | UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | DIP | 21*36 | LoRa spread spectrum | ✔ |
| E32-433T20S | UART | SX1278 | 433M | 20 | 5,0 | 2.4k～19.2k | SMD | 16 * 26 | LoRa Spread Spactrum Technology | ✔ |
| E32-433T20S1 | UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | SMD | 17*25.5 | LoRa spread spectrum | ✔ |
| E32-433T20S2T | UART | SX1278 | 433M | 20 | 3.0 | 0.3k~19.2k | SMD | 17*30 | LoRa spread spectrum | ✔ |
| E32-433T27D | UART | SX1278 | 433M | 27 | 5.0 | 0.3k~19.2k | DIP | 24*43 | LoRa spread spectrum | ✔ |
| E32-433T30D | UART | SX1278 | 433M | 30 | 8.0 | 0.3k~19.2k | DIP | 24*43 | LoRa spread spectrum | ✔ |
| E32-433T30S | UART | SX1278 | 433M | 30 | 8.0 | 0.3k~19.2k | SMD | 25*40.5 | LoRa spread spectrum | ✔ |
| E32-868T20D | UART | SX1276 | 868M | 20 | 3.0 | 0.3k~19.2k | DIP | 21*36 | LoRa spread spectrum | ✔ |
| E32-868T20S | UART | SX1276 | 868M | 20 | 3,0 | 0.3k~19.2k | SMD | 16 * 26 | LoRa spread spectrum | ✔ |
| E32-868T30D | UART | SX1276 | 868M | 30 | 8.0 | 0.3k~19.2k | DIP | 24*43 | LoRa spread spectrum | ✔ |
| E32-868T30S | UART | SX1276 | 868M | 30 | 8.0 | 0.3k~19.2k | DIP | 25*40.3 | LoRa spread spectrum Continuous transmiss | ✔ |
| E32-900T20S | UART | SX1276 | 868M 915M | 20 | 5,5 | 0.3k~19.2k | SMD | 16*26 | LoRa spread spectrum | ✔ |
| E32-900T30D | UART | SX1276 | 868M 915M | 30 | 8,0 | 0.3k~19.2k | DIP | 24*43 | LoRa spread spectrum | ✔ |
| RF Parameter | Value |
Remark |
| Working frequency |
410~525 MHz |
Default: 470MHz |
| Transmitting power | 10~20 dBm |
Default: 20dBm（About 100mW） |
| Receiving sensitivity | -146 dBm |
Air data rate: 0.3kbps |
| Air data rate | 0.3k~19.2kbps |
Default: 2.4kbps |
| Test distance | 3000 meter |
In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 2.4kbps |
| Hardware Parameter | Value |
Remark |
| Size |
16 * 26 mm |
|
| Antenna type | IPX / Stamp hole |
|
| Communication interface | UART |
Baud rate: 1200~115200, default: 9600 |
| Package | SMD |
|
| Buffer | 512 bytes buffer |
Automatically sub-packaging with 197 bytes per package |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply |
2.3 | 5.0 | 5.2 | V | |
| Communication level | 2.5 | 3.3 | 3.6 | V | |
| Transmitting current |
96 |
106 | 116 | mA | 20dBm（100mW） |
| Receiving current | 14 |
15 | 16 | mA |
|
| Sleep current | 3 | 4 | 5 | μA | |
| Operating temperature |
-40 | 20 |
+85 | ℃ | |
| Operating humidity |
10 | 60 |
90 | % | |
| Storage temperature |
-40 | 20 |
+125 | ℃ |
| Pin No. |
Pin Item | Pin Direction | Pin Application |
| 1 | GND |
- |
Ground |
| 2 | GND | - |
Ground |
| 3 | GND | - |
Ground |
| 4 | GND | - |
Ground |
| 5 | M0 |
Input (weak pull-up) |
Work with M1 & decide the four operating modes; Floating is not allowed, can be ground. |
| 6 | M1 |
Input (weak pull-up) |
Work with M0 & decide the four operating modes; Floating is not allowed, can be ground. |
| 7 | RXD | Input |
TTL UART inputs, connects to external TXD output pin; Can be configured as open-drain or pull-up input. |
| 8 | TXD | Output |
TTL UART outputs, connects to external RXD input pin Can be configured as open-drain or push-pull output. |
| 9 | AUX | Output |
To wake up the external MCU, during the procedure of self-check initialization, the pin outputs low level; Can be configured as open-drain output or push-pull output; Floating is allowed. |
| 10 | VCC | - |
Voltage positive reference of module; Power supply 2.3V ~ 5.2V DC |
| 11 | GND | - |
Ground |
| 12 | NC | - |
- |
| 13 | GND | - |
Ground |
| 14 | NC | - |
- |
| 15 | NC | - |
- |
| 16 | NC | - |
- |
| 17 | NC | - |
- |
| 18 | NC | - |
- |
| 19 | GND | - |
Ground |
| 20 | GND | - |
Ground |
| 21 | ANT | - |
Antenna |
| 22 | GND | - |
Ground |
