[Carrier frequency]： 410~441MHz
[Transmit power]： 33dBm
[Communication distance]：16km
[Product weight]：25.8±0.5g
[Product size]： 37*60*7.6mm
[Introduction]：E32-433T33D is a wireless serial port module (UART) based on SEMTECH's LoRa solution. With transparent mode, working at 410~441MHz (default 433MHz), LoRa spread spectrum technology.
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 21~30 dBm | Default: 33dBm |
| Receiving sensitivity | -147 dBm | Air data rate: 0.3kbps |
| Air data rate | 0.3k~19.2kbps | Default: 2.4kbps |
| Test distance | 16km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2.5m，air data rate: 2.4kbps |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 37*60*7.6mm | - |
| Antenna type | SMA-K | 50 ohm impedance |
| Communication interface | UART | TTL |
| Package | DIP | |
| Buffer | 512 bytes buffer | - |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 3.3 | 5.0 | 5.5 | V | ≥5.0 V ensures output power |
| Communication level | - | 3.3 | - | V | For 5V TTL, it may be at risk ofburning down |
| Transmitting current | 850 | 1000 | 1200 | mA | Instant power consumption |
| Receiving current | 11 | 13 | 15 | mA | - |
| Turn-off current | - | 2 | - | μA | Software is shut down |
| Operating temperature | -40 | - | +85 | ℃ | |
| Max Tx power | 32 | 33 | 34 | dBm | - |
| Air data rate | 0.3k | 2.4k | 19.2k | bps | Controlled via user’s programming |
| Pin No | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 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 ~ 5.2V DC |
| 7 | GND | Input | Ground |
| 8 | Fixed orifice | Fixed orifice | |
| 9 | Fixed orifice | Fixed orifice | |
| 10 | Fixed orifice | Fixed orifice | |
| 11 | Fixed orifice | Fixed orifice | |
| 12 | Fixed orifice | Fixed orifice | |
| 13 | Fixed orifice | Fixed orifice | |
| 14 | Fixed orifice | Fixed orifice | |
| 15 | Fixed orifice | Fixed orifice |
