LLCC68 RS485 Wireless RF Transceiver and Receiver 433MHz 470MHz 30dBm IoT LoRa Spread Spectrum Module Long Range
[IC]：LLCC68
[Frequency]：410.125~493.125MHz
[Power]：30dBm
[Distance]：10km
[Size]：26*48mm
[Introduction]：The E220-400R30D uses a new generation of based on the RS485 module designed for the LLCC68 chip scheme with a variety of transmission modes. It operates in the (410.125 to 493.125MHz) frequency (default 433.125MHz) and supports DC 5.0 power supply.
| Pin No. | Item | Direction | Description |
|---|---|---|---|
| 1 | VCC | Input | Module power supply is referenced, voltage range: 4.5 to 5.5V DC |
| 2 | GND | Input | Module ground line |
| 3 | 485A | Input/Output | A of the RS485 interface, A of the external RS485 device |
| 4 | 485B | Input/Output | B of the RS485 interface, B of the external RS485 device |
| 5 | STB | Output | Low when idle, high for configuration and sending&receiving |
| 6 | Sending Light | - | Green, the light flashes when data is sent |
| 7 | Receiving Light | - | Blue, the light flashes when data is sent |
| 8 | Fixed holes | - | Fixed holes |
| 9 | RF interface | - | SMA-K, equivalent impedance is about 50 s |
| 10 | Fixed holes | - | Fixed holes |
| 11 | Fixed holes | - | Fixed holes |