Tag: LoRa

Via HACKADAY: High Power LoRa and Tropospheric Reflection Experiments

We’re used to LoRa as a free-to-use digital radio protocol allowing not-very-high data rate communications over distances of a few miles. It’s made all kinds of distributed sensor systems a breeze, and some experimenters have made an art of achieving communication over hundreds of miles. But what would happen if you took a brute-force approach […]

via HACKADAY: Adding LoRa Long Range Radio To Smartphones And Connected Devices

Would you add another radio to your smartphone? No, not another WiFi or cellular radio; a smartphone already has that. I’m talking about something that provides connectivity through ISM bands, either 433 or 915 MHz. This can be used where you don’t have cell phone coverage, and it has a longer range than WiFi. This is […]

via HACKADAY: Why Have Only One Radio, When You Can Have Two?

There are a multitude of radio shields for the Arduino and similar platforms, but they so often only support one protocol, manufacturer, or frequency band. [Jan Gromeš] was vexed by this in a project he saw, so decided to create a shield capable of supporting multiple different types. And because more is so often better, he […]

via HACKADAY: Harley-Hardened Wire Helps High-Gain Antenna Hack

What does a Harley-Davidson motorcycle have to do with building antennas? Absolutely nothing, unless you happen to have one and need to work-harden copper wire to build a collinear antenna for LoRa. We’ll explain. Never being one to settle, [Andreas Spiess] needed a better antenna for his LoRa experiments. Looking for high gain and an omnidirectional pattern, […]

via the ARRL: Unicorn-2A PocketQube to Launch Later this Year from Alaska

According to a BBC News report, a new UK-built PocketQube satellite, Unicorn-2A, developed by radio amateurs at Glasgow’s Alba Orbital, will launch later this year from Alaska. Three radio amateurs at Alba Orbital worked on Unicorn-2A, which will have downlinks in the 437 MHz and 2400 MHz bands. One of the transmission modes will be LoRa, a patented wireless communication […]

via HACKADAY: Build Your Own Antenna for Outdoor Monitoring with LoRa

LoRa and LPWANs (Low Power Wide Area Networks) are all the range (tee-hee!) in wireless these days. LoRa is a sub 1-GHz wireless technology using sophisticated signal processing and modulation techniques to achieve long-range communications. With that simplified introduction, [Omkar Joglekar] designed his own LoRa node used for outdoor sensor monitoring based on the HopeRF RFM95 LoRa […]

via HACKADAY: At 71,572 KM, You Won’t Beat This LoRa Record

satellite

A distance record for LoRa transmission has been set that you probably won’t be able to beat. Pack up your gear and go home, nothing more to achieve here. At a superficial reading having a figure of 71,572 km (44,473 miles) seems an impossible figure for one of the little LoRa radio modules many of […]