[IC]:SX1280
[Frequency]:2.4~2.5GHz
[Power]:20dBm
[Distance]:6.0km
[Interface]:SPI
[Weight]:1.9±0.1g
[Introduction]:E28-2G4M20S is a 2.4GHz bluetooth module designed by Chengdu Ebyte.The IC SX1280 features multiple physical layers and various modulating methods such as LoRa, FLRC and GFSK. The special modulating and processing methods enable longer operating range with LoRa and FLRC modulating, and the GFSK method covers BLE protocol.
Pin No. | Pin Item | Pin Direction | Pin 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 chip selection pin, used to start a SPI communication; and can be used as UARTclearing transmitting pin |
7 | GND | - | Ground, connecting to power source reference ground |
8 | RX_EN | Input | LNA controlling pin. Valid under high level |
9 | TX_EN | Input | PA controlling pin. Valid under high level |
10 | GND | - | Ground, connecting to power source reference ground |
11 | NRESET | Input | Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor |
12 | BUSY | Output | Status indication (refer to SX1280 Datasheet) |
13 | DIO1 | Input/Output | Configurable general IO interface (refer to SX1280 Datasheet) |
14 | DIO2 | Input/Output | Configurable general IO interface (refer to SX1280 Datasheet) |
15 | DIO3 | Input/Output | Configurable general IO interface (refer to SX1280 Datasheet) |
16 | GND | - | Ground, connecting to power source reference ground |