Introduction

• This product is a Raspberry Pi expansion board based on SX1268/SX1262 chip, a wireless serial port module with LoRa modulation function.
• With multi-level relay to achieve ultra-long-distance communication, low power consumption wake-up communication, encrypted transmission, etc.
• This product uses a private protocol and does not support LoRaWAN.

Features

• Support global license-free ISM 433/470/868/915MHz frequency band.
• Supports wake-on-air, that is, ultra-low power consumption, suitable for battery-powered applications.
• Support point-to-point transmission, broadcast transmission, channel monitoring, and multi-level relaying for ultra-long-distance communication.
• Support RSSI signal indicator for evaluating signal quality and improving communication network.
• Support the LBT function, and monitor the channel environmental noise before sending, which can greatly improve the communication success rate of the module in harsh environments.
• LoRa spread spectrum technology, up to 84 channels/81 channels (SX1268/SX1262).
• Support waking on radio, online configuration, carrier sense, automatic relay, communication key, low power sleep.
• In an ideal environment, the communication distance can reach 5KM.

Hardware description

Hardware description of SX1268 LoRa HAT

1. SX1268/SX1262 LoRa module
2. 74HC125V: voltage level translator
3. CP2102: USB TO UART converter
4. Raspberry Pi GPIO connector: for connecting with Raspberry Pi
5. USB TO UART port
6. UART header: for connecting MCU
7. SMA antenna connector
8. IPEX antenna connector
9. Indicators:RXD/TXD: UART RX/TX indicatorAUX: auxiliary indicatorPWR: power indicator
10. UART selection jumpersA: control the LoRa module through USB TO UARTB: control the LoRa module through Raspberry PiC: access Raspberry Pi through USB TO UART
11. LoRa mode selection jumpersshort M0, short M1: transmission modeshort M0, open M1: configuration modeopen M0, short M1: WOR modeopen M0, open M1: deep sleep mode