Description

The BKB-RFM95W-UFL allows you to build your own LoRa long range radio modem at a very low cost. By simply buying this pcb and the recommended parts, you can solder up a LoRa wireless modem for your application.

This bare pcb accommodates a HopeRF RFM95W LoRa modem, Hirose U.FL antenna connector and two – seven pin 0.1″ headers that are spaced properly to easily push into a standard breadboard, with room on each side for wiring up your modem to a microcontroller. The U.FL pads have been extended for easy hand soldering!

Applications

• Hobbiests – Connect sensors across homes, buildings and properties
• Low Power Wireless Sensor Networks – long range, low cost connections not possible with bluetooth, WiFi or other radio modems at similar cost and size.
• Educators – teach about link budgets and show how -140dBm sensitivity can drive extreme distances with low power radios.
• Arduino enthusiasts – leverage sketch libraries and do minimal coding to get a LoRa network passing data.

Features

• Two rows of 0.1″ header pins. The rows are spaced 0.8″ to allow standard connectivity on development breadboards and prototype boards.
• Narrow design allows you to stick this into a breadboard and have room on each side for wires.
• RFM95W mounted on bottom to allow for big port labels on the top to easily read where wires attach on adjacent breadboard slots.
• U.FL connector pads have been extended, to allow for easy hand soldering at three points.
• This breakout board will accommodate the following HopeRF Modems, because they all have the same footprint : RFM95W, RFM96W, RFM98W, RFM95TW, RFM96TWs

Parts Needed

(This product must be controlled by a 3.3V microcontroller. We suggest using a 3.3V Arduino development board and the associated libraries to quickly get going. )

1 ea. BKB-RFM95W-UFL, Breakout Board (the product on this page)
1 ea. HopeRF Modem (RFM95W, RFM96W, RFM98W, RFM95TW, RFM96TW)
2 ea. 1×7, 0.1″ Headers (Suggest Digikey 609-6400-ND)
1 ea. 900MHz Antenna with U.FL connector

Additional Info:

What is LoRa technology?
LoRa is quickly becoming the defacto wireless modulation standard for the Internet of Things. Utilizing “chirp” modulation, LoRa modems are able to connect super long ranges in the right conditions, due to extremely low receive sensitivity.

HopeRF RFM95W Documentation

HopeRF RFM95 and arduino a low cost LoRaWan solution