Wio-SX1262 Introduction
Introduction
The Wio-SX1262 is a low-cost, ultra-low-power, and ultra-compact LoRa® Pure RF module based on the high-performance Semtech SX1262 LoRa® wireless communication IC, supporting LoRa & LoRaWAN frequency from 868 to 915 MHz and up tp +22 dBm highly efficient transmitted power. Equipped with an onboard IPEX antenna connector and high-quality oscillator of the TCXO(Temperature Compensate Crystal Oscillator), it ensures stable operation at the high and low temperature environment of industry. It is designed for wireless sensor networks and other IoT devices, especially those requiring battery-powered, low-power consumption, and long-range connectivity. Ideal for applications such as wireless meter reading, agriculture sensor, LoRaWAN single channel gateway etc.
Features
- Wio SX1262 is based on SX1262 which is sub-GHz radio transceivers designed by Semtech Corporation
- Wio SX1262 can transmit up to +22 dBm with highly efficient integrated power amplifiers
- Wio SX1262 support LoRa® modulation for LPWAN use cases and (G)FSK modulation for legacy use cases.
- Frequency coverage from 868 MHz to 960 MHz.
- With SPI interface.
Hardware Overview
The Wio-SX1262 module is based on SX1262, making it ideal for designing various IoT nodes. It supports both (G)FSK and LoRa® modulations, with a bandwidth range of 7.8 to 500 kHz in LoRa® mode. The module provides the SPI interface for communication with an external MCU. Its power distribution scheme supports two hardware options: DC-DC or a linear regulator LDO, and the Wio-SX1262 module utilizes the DC-DC design. Additionally, it features a high-precision active TCXO as its internal RF reference frequency, with DIO3 serving as the TCXO voltage power supply.
Schematic Diagram
Pinout
Reference Design Based on Wio-SX1262 module
The following is typical reference design using the Wio-SX1262 module, just connect the module to the host MCU according to the reference design.
Antenna design considerations: The antenna interface is designed with a 50Ω impedance, and it is recommended that users reserve a π-type matching network for the antenna.
The reference design:
Resource
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