[Frequency]： 410~441MHz
[Power]： 10~20dBm
[Distance]： 3.0km
[Interface]： UART
[Введение]： E32-433T20DT — это беспроводной модуль SMD (UART), основанный на оригинальном импортном радиочастотном чипе SEMTECH. Он имеет рабочую частоту 410–441 МГц и имеет технологию LoRa, функции шифрования и сжатия данных.
| 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 |
| 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.Can be configured as open-drain or push-pull output |
| 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 |
Product Descriptio
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