E32-T Serisi , LoRa RF Modül E32-433T20D
E32-433T20DT
[IC] : SX1278
[Frequency] : 410~441MHz
[Power] : 10~20dBm
[Distance] : 3.0km
[Interface] : UART
[introduction] : E32-433T20DT is a wireless transceiver module based on SX1278 from SEMTECH(can be transmitter and receiver both). It adopts LoRa spread spectrum technology, with this technology the transmitting distance and penetration ability of the module improved more than 1 times compared with traditional FSK.
| 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 |
410~441 MHz |
Default: 433MHz |
| Transmitting power | 10~20 dBm |
Default: 20dBm（About 100mW） |
| Receiving sensitivity | -146 dBm |
Air data rate is 2.4kbps |
| 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 2.5m, air data rate: 2.4kbps |
| Hardware Parameter | Value |
Remark |
| Size |
21 * 36 mm |
Without SMA |
| Antenna type | SMA-K |
50 ohm impedance |
| Communication interface | UART |
Baud rate: 1200~115200, default: 9600 |
| Package | DIP |
- |
| Buffer | 512 bytes buffer |
Automatically sub-packaging with 58 bytes per package |
|
Electronic parameter |
Min. | Typ. | Max. | Unit | Condition |
| Power supply |
3.3 | 5.0 | 5.2 | V | ≥5.0 V ensures output power |
| Communication level | - | 3.3 | - | V |
For 5V TTL, it may be at risk of burning down |
| Transmitting current | - | 106 | - | mA |
Instant power consumption |
| Receiving current |
- | 15 | - | mA |
- |
| Sleep current | - |
4 | - | μA | Software is shut down |
| Operating temperature |
-40 | 20 |
+85 | ℃ | Industrial design |
| Operating humidity |
10 | 60 |
90 | % | - |
| Storage temperature |
-40 | 20 |
+125 | ℃ | - |
| Pin No. |
Pin Item | Pin Direction | Pin Application |
| 1 | M0 |
Input （weak pull-up） |
Work with M1 & decide the four operating modes. Floating is not allowed, can be ground. |
| 2 | M1 | Input （weak pull-up） |
Work with M0 & decide the four operating modes. Floating is not allowed, can be ground. |
| 3 | RXD | Input |
TTL UART inputs, connects to external TXD (MCU, PC) output pin. Can be configured as open-drain or pull-up input |
| 4 | TXD | Output |
TTL UART outputs, connects to external RXD (MCU, PC) input pin. |
| 5 | 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). |
| 6 | VCC | Input |
Power supply 2.3V-5.2V DC |
| 7 | GND | Input |
Ground |
| 8 | Fixing hole | - | Fixing hole |
| 9 | Fixing hole |
- | Fixing hole |
| 10 | Fixing hole |
- | Fixing hole |
