Ebyte high quality UART wireless modules for meter reading smart home smart agriculture industrial control
[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.
| 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 | ℃ |