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A DIY Tracker Tough Enough for the Arctic

Cars That Think

So, I set about building an open-source ice tracker from DIY components that not only proved to be much, much cheaper but also much more capable than the commercial options. James Provost We tested the basic design by deploying a prototype onto the ice in February 2021.

DIY 91
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Build Your Own Hi-fi Ear Defenders

Cars That Think

Now, after countless versions of wiring things together, and even designing my own audio mixers, I finally have a DIY solution that works within a reasonable budget. The WM8960 has a quieter initial gain stage that’s designed for microphones. This board was more suited for this project than my previous choice, the TPA2016D2.

Building 120
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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

At the time, e-bikes were still rather exotic, at least in the United States, so it seemed worth the expense and effort to build my own. It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum.

DIY 98
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IoT-ize Your Old Gadgets With a Mechanical Hijacking Device

Cars That Think

Just about every device you own is probably available with Internet connectivity. needs Internet connectivity is up for debate. Connectivity usually comes at a premium, and it also usually involves buying a brand new whatever it is, because new hardware and software and services are required. Or, that was the idea, anyway.

DIY 141
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Build a Passive Radar With Software-Defined Radio

Cars That Think

Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs. This includes RTLx-based USB sticks built with better supporting components and designs versus the original TV tuners, and completely new receivers such as the RSPDx. James Provost.

Building 100
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Hacking Ham Radio for Texting

Cars That Think

Navy researcher Robert Bruninga and was originally designed to track tactical information in real time. APRS supports sending text messages, and if you're in range of an Internet-connected gateway node you can even. MicroAPRS , which is an open-source and Arduino-compatible firmware package for DIY packet radio modems.

DIY 145