Long Range RF Module Wireless Transmitter/Receiver 868MHz LoRa Module SX1276
RF-83SH module is a LoRa spread spectrum module, with operating frequency of 868 MHz ~ 893 MHz & 900 MHz ~ 931 MHz, based on the Semtech SX1276. It is a wireless SPI transceiver module with 3.3 V TTL level output. RF-star LoRa module features with ultra-long range spread spectrum communication, concentrated power density, high interference immunity ability, confidentiality, and significantly lower current consumption. The communication interface of RF-83SH is SPI, therefore, the MCU driver or a dedicated SPI debug tool is recommended to use.
| Pin No | Name | Type | Description |
| 1 | GND | P | Ground |
| 2 | DIO5 | I/O | Configurable universal IO port |
| 3 | DIO4 | I/O | Configurable universal IO port |
| 4 | DIO3 | I/O | Configurable universal IO port |
| 5 | DIO2 | I/O | Configurable universal IO port |
| 6 | DIO1 | I/O | Configurable universal IO port |
| 7 | DIO0 | I/O | Configurable universal IO port |
| 8 | RES | I | Reset Pin |
| 9 | GND | P | Ground |
| 10 | GND | P | Ground |
| 11 | VCC | P | Power supply, range from 2.5V to 5.2V (5V is recommended, as external ceramic filter capacitor) |
| 12 | SCK | I | SPI clock input pin |
| 13 | MISO | O | SPI data output pin |
| 14 | MOSI | I | SPI data input pin |
| 15 | NSS | I | Module chip select pin for starting SPI communication |
| 16 | TXEN | I | RF switch pin control; TXEN is high when transmitting, RXEN is low. |
| 17 | RXEN | I | RF switch pin control; RXEN is high when receiving, TXEN is low. |
| 18 | GND | P | Ground |
| 19 | RF | O | Antenna port |
| 20 | GND | P | Ground |
| 21 | GND | P | Ground |
| 22 | GND | P | Ground |
