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WRL-15006: SparkFun LoRa Gateway - 1-Channel (ESP32/RFM95W)

Summary

The SparkFun 1-Channel LoRa Gateway is a powerful 3-network capable device thanks to an onboard ESP32 WROOM module and an RFM95W LoRa modem. The RFM95W handles the 915MHz band while the ESP32 takes care of Bluetooth and WiFi capabilities. One of the ideal uses is to convert LoRa (Long Range) radio messages into data packets that you can access via the web, but of course the flexibility it offers can be put to many more uses! It's a perfect, low-cost tool for monitoring a dozen-or-so LoRa devices and relaying their messages up to the cloud.

Complete with a Qwiic connector and a breadboard-compatible array of ESP32 pin-breakouts, the Gateway can can also serve as a general-purpose ESP32/RFM95W development platform. The LoRa Gateway can act as either a gateway (hence the name) or a device, but not both at the same time. To really be sure that your setup works as expected you should have another LoRa device to listen to, and/or another LoRa gateway to transmit to. The good news is that the LoRa Gateway 1-Channel can act as both so if you have two then you’re all set.

To use the 915 MHz radio on the gateway you will need an antenna - for which you have two choices. You may cut a length of solid-core wire to approximately three inches for a through-hole antenna connection with strain relief or you can use a 915MHz antenna with a U.FL connector for higher performance antennas.

Specifications

Manufacturer SparkFun Electronics
Category Open Source MCU Platforms
Eval Board Part Number 1568-1957-ND
Eval Board Supplier SparkFun Electronics
IDE Arduino IDE, with Software Add-on
Speed 240 MHz
Bits 32 Bit
Memory, Flash/RAM 4 MB / 520 kB
Digital I/O 14 I/O, 14 PWM
Interface I²C
SPI
Analog Outputs (DACs) -
Analog Inputs (ADCs) -
DMA Channels 2
Features On-Board Antenna
Radio Bluetooth v4.2 + EDR, Class 1, 2 and 3
Bluetooth Low Energy (BLE)
LoRa (868/915 MHz)
Wi-Fi 802.11 b/g/n
Interrupt Pins 14
I/O Voltage 3.3 V
Voltage In 3.3 ~ 6 V
Touch Sensing Pins -
Program/Debug Interface USB Type-Micro B
Area 1775² mm, 2.75² In
Main I.C. Base Part ESP32
RFM95W
Design Author SparkFun Electronics
Date Created By Author 2018-11
Date Added To Library 2020-01

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