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Using QSPI Flash with the Nordic NRF52 SDK

Using QSPI Flash with the Nordic NRF52 SDK

It turned out to be much harder to use the QSPI flash chip with the Nordic SDK than I expected. Mainly this is because their documentation…
Go to the profile of Mark Zachmann
Mark Zachmann
Using Segger Studio, Nordic SDK and Arduino with Particle Xenon

Using Segger Studio, Nordic SDK and Arduino with Particle Xenon

The Particle Xenon is a great board and here are two alternate operating systems.
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Mark Zachmann
Particle Mesh Photos

Particle Mesh Photos

I’ve been using Particle boards for years for home automation and other simple tasks. In February they announced a shift to a line they…
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Mark Zachmann
Testing LoRa Antennas at 915MHz

Testing LoRa Antennas at 915MHz

I’ve been working on LoRa systems and really wanted to find a ‘best of breed’ antenna to use. So, I found an inexpensive but accurate…
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Mark Zachmann
How to Build a Hot Plate Reflow Oven

How to Build a Hot Plate Reflow Oven

I’ve been building surface mount circuit boards by hand with a hot air gun. It is slow, tedious, and error-prone. I looked into buying a…
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Mark Zachmann
Long Range Embedded Systems — Part 2

Long Range Embedded Systems — Part 2

I’m prepared and now it’s time to test the embedded systems. The challengers are:
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Mark Zachmann
The Best LoRa Settings for Range and Reliability

The Best LoRa Settings for Range and Reliability

Why won’t my two LoRa (Long Range) radios talk to each other? A common refrain when you’re developing LoRa applications.
Go to the profile of Mark Zachmann
Mark Zachmann
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