User's Guide

Chapter 1. Introduction
1.1 OVERVIEW
The Gpacers LoRa module is a Low-Power Long Range LoRa Technology Transceiver Module,
need to build-up the MCU firmware before use.
The module provides the following interfaces for various applications:
• The 22x I/O port of the connectors configured by firmware of MCU can be used for high/low
output to control the receiver, LNA, transmitter, PA functions , or converted into serial
USART/SPI/I2C control signals to communicate with different peripheral devices to be
integrated in user's system, such as: OLED, GPS module, LED, Wi-Fi module... Etc.
• Use 1 magnet to power on/off the whole module through one hall switch.
• 4 port of the connectors can output 3.3V output power.
• Use 1~4 magnet to control the i/o port of MCU through drv5032 hall switch, used as external
control switches to activate the desired functions such as receiver or transmitter function.
1.2 FEATURES
The Gpacers LoRa module has the following features:
• 868/915 MHz high-frequency antenna secured on SMA connector.
• Microchip MCU firmware programming by through holes.
• Long range RF transceiver function of Semtech LoRa technology.
• 18dB LNA and 32dB PA available for receiver and transmitter function.
• Using external magnets for ON/OFF control of Power supply and application functions Control.
• 22 I/O ports including 4 serial USART/SPI/I2C and 3.3V output power for peripherals control.
1.3 TECHNICAL SPECIFICATION
6
RF
modulation
Lora
RF frequency
920.5~924.5 MHz
Transmission power
27 dBm
(Max)
Working
Temperature
-
20°C ~60°C
Power input
DC 3.7 V
Dimensions
(H x W)
Antenna (H x D)
80x44 mm
Antenna
: 66x8 mm