E28-2G4M12S Smart Watch Sx1281 Home 2.4ghz Module Lora Wan Parking Sensor module RoHS
[Chip solution]：SX1281
[Frequency]：2.4~2.5GHz
[Transmitter power]：12.5dBm
[Communication distance]：3.0km
[Communication Interface]：SPI
[Product weight]：1.6±0.1g
[Introduction]：E28-2G4M12SX is a 2.4GHz radio frequency transceiver module designed and produced by Ebyte Company. It has long communication distance and extremely low current consumption in low power consumption mode. This module is a small size chip type (pin pitch 1.27mm). This series uses 52MHz industrial-grade high-precision low-temperature drift active crystal oscillator to ensure its industrial characteristics and stable performance.
Official Store| RF Parameter | Value | Remark |
| Working frequency | 2400~2500 MHz | Default: 2.4GHz (52MHz oscillator) |
| Transmitting power | 12.5 dBm | About 18mW |
| Receiving sensitivity | -130 dBm | Air data rate: 125kbps |
| Air data rate | 0.125M~2Mbps | Default: 125kbps |
| Test distance | 3000m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 125kbps |
| Hardware Parameter | Value | Remark |
| Size | 24*15mm | |
| Antenna type | IPEX / PCB | |
| Communication interface | SPI | |
| Package | SMD |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 1.8 | 3.3 | 3.6 | V | |
| Communication level | 1.8 | 3.3 | 3.6 | V | |
| Transmitting current | 42 | 45 | 50 | mA | 12.5dBm（18mW） |
| Receiving current | 9 | 10 | 11 | mA | |
| Sleep current | 1 | 2 | 3 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |