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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. The handlebar-mounted controls connect with an Arduino, which interprets their settings and translates them into a PPM signal, which is applied to the electronic speed controller. OK boomer," indeed.

DIY 145
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Building the Future of Smart Home Security

Cars That Think

This is a sponsored article brought to you by SimpliSafe. It’s nearly impossible to find a household today that doesn’t have at least one connected smart home device installed. Managing the server activity of those connected devices is a unique challenge to SimpliSafe.

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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. The handlebar-mounted controls connect with an Arduino, which interprets their settings and translates them into a PPM signal, which is applied to the electronic speed controller. OK boomer," indeed.

DIY 98
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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. The Pi is connected to the SDR via a data link, and in turn the SDR is connected via coaxial cables to two directional TV antennas [right and left]. James Provost. James Provost.

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Hacking Ham Radio for Texting

Cars That Think

APRS supports sending text messages, and if you're in range of an Internet-connected gateway node you can even. I wanted a portable device I could connect to my handheld radio that was completely self-contained, with a keyboard, screen, and GPS receiver all built in. I thought about building it around a Raspberry Pi.

DIY 145
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Can This DIY Rocket Program Send an Astronaut to Space?

Cars That Think

That successful mission in August 2018 was a huge step toward our goal of sending an amateur astronaut to the edge of space aboard one of our DIY rockets. We're now building the. We'll soon commence building a full-scale BPM100 engine, which will ultimately incorporate a new guidance system for the rocket. Carsten Olsen.

DIY 137
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A Web-Enabled, High Quality, DIY Audio Amp

Cars That Think

And I’d already built my own speakers, so why not build it myself? November 2018 Hands On article, “DIY Pro Audio ” in IEEE Spectrum , and it convinced me it was possible, although I wanted to go beyond just a power amplifier to something more like my lamented Sansui. I located a similar project by Jos van Eijndhoven.

DIY 98