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The DSP408 and Minidsp 2x4 are compact A/D-CPU-D/A units designed to be active crossover appliances with room correction. These are both…

Traditionally, loudspeakers have internal passive crossovers to funnel highs to tweeters and lows to woofers. This article is about using a…

The Arylic Up2stream S50 Pro+ is a high-def high-feature version of a Chromecast Audio (discontinued a few years ago). Since we now spend…

You can make any project portable with this LiPo battery charger and USB test circuit. The USB circuit provides a passthrough of the USB…

Once my latest Zephyr project was in a box it became critical to have an update process that didn’t require connection to the debug port…

The Wio-E5 Mini from Seeed Studio is a compact usb/battery-driven LoRa-E5 board but there’s no battery charging option so here’s how to add…

After setting up the development environment it’s time to write and test a simple LoRa PingPong application — something that sends and…

Building and debugging the code you create with Visual Studio Code is not a hard task, thanks to existing extensions, but it does take some…

Here is how to create a simple STM-raw development environment that lets you build/run the provided Seed Studio LoRaWan examples as well as…

The STM32WLE5 CPU+LoRa radio chip is the basis for Seeed Studio’s LoRa-E5 module. They’re both very interesting so I’m going to walk…

CNC Spindle Cameras Part IV

Spindle Cameras Part III

CNC Spindle Cameras Part II

CNC Spindle Cameras Part I

When I started using LoRa radios it amazed me that there was no discussion of real life range. This article helps solve that.