E32-900M20S LoRa TM SMD wireless module
[IC]：SX1276
[Frequency]：850～931MHz
[Power]：20dBm
[Distance]：5km
[Size]：14*20mm
[Introduction]：E32-900M20S is a self-developed, 868/915MHz LoRa TM SMD wireless module with the maximum transmission power of 1W which is based on the SX1276 produced by Semtech in the United States.
| Main parameter | Description | Remark |
| Reference distance | 5Km | Test condition：clear and open area, antenna gain: 5dBi，antenna height: 2m，air data rate: 2.4 kbps |
| FIFO | 256Byte | Maximum length of single send |
| Crystal Oscillator | 32MHz | Passive crystals |
| Protocol | LoRa | FSK/GFSK/MSK/GMSK/OOK |
| Package | SMD | Spacing of 2.54 mm |
| Interface | 1.27mm | Sample hole |
| Communication interface | SPI | 0～10Mbps |
| Size | 14*20mm | - |
| Antenna | Sample hole / IPEX | 50 ohm impedance |
| Main parameter | Min | Type | Max | Unit | Remark |
| Operating voltage | 3.3 | 5 | 5.5 | V | ≥5.5 V ensures output power |
| Communication level | - | 3.3 | - | V | - |
| Operating temperature | -40 | - | +85 | ℃ | Industrial grade |
| Operating frequency | 850 | 868/915 | 931 | MHz | - |
| TX current | - | 650 | - | mA | - |
| RX current | - | 19 | - | mA | - |
| Sleep current | - | 2 | - | μA | - |
| Max TX power | - | 20 | - | dBm | - |
| Receiving sensitivity | -123 | -124 | -125 | dBm | Air data rate is 1.2 kbps |