E28-2G4M12S Smart Watch Sx1280 Home 2.4ghz Module Lora Wan Parking Sensor module RoHS
[IC]：SX1280
[Frequency]：2.4~2.5GHz
[Power]：12.5dBm
[Distance]：3.0km
[Interface]：SPI
[Weight]：1.6±0.1g
[Introduction]：E28-2G4M12S is a 2.4GHz bluetooth module designed by Chengdu Ebyte. With built-in PCB antenna, it adopts the original RFIC SX1280 of Semtech, it works at 2.400 ~ 2.500GHz with ultra-low power consumption. It is applicable for smart home, security system & etc.
| No. | Pin item | Pin direction | Application |
| 1 | VCC | - | Power supply.1.8V~3.6V(recommend to add external ceramic filter capacitor) |
| 2 | GND | - | Ground,connecting to power source reference ground |
| 3 | MISO_TX | Output | SPI data output pin,can be used as UART transmitting pin |
| 4 | MOSI_RX | Input | SPI data input pin,can be used as UART receiving pin |
| 5 | SCK_RTSN | Input | SPI clock input pin,can be used as UART request transmitting pin |
| 6 | NSS_CTS | Input | Module selection pin, used to start a SPI chip communication; and can be used as UART clearing transmitting pin |
| 7 | GND | - | Ground,connecting to power source reference ground |
| 8 | GND | - | Ground,connecting to power source reference ground |
| 9 | NRESET | Input | Chip reset initiation input pin,valid under low level,built-in 50k pull-up resistor |
| 10 | BUSY | Output | Status indication(refer to SX1280 Datasheet) |