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Hi-fi, Radio, and Retro: The DIY Projects Spectrum Readers Love

Cars That Think

This month we’re celebrating the launch of our second PDF collection of Hands On articles, which IEEE members can download from IEEE Spectrum ’s website and share with friends. Far and away our most popular article in the last five years has been “ Build Your Own Professional-Grade Audio Amp on the Sort of Cheap ” (November 2018).

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A DIY E-bike Conversion on the Cheap

Cars That Think

I'd read about such friction-drive arrangements and had followed the work of a cyclist in Australia known as Kepler who had devised a clever articulated mount that allows the motor to retract from the wheel when not applying power. I next needed to decide on an electronic speed controller (ESC) to power the motor. James Provost.

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A DIY E-bike Conversion on the Cheap

Cars That Think

I'd read about such friction-drive arrangements and had followed the work of a cyclist in Australia known as Kepler who had devised a clever articulated mount that allows the motor to retract from the wheel when not applying power. I next needed to decide on an electronic speed controller (ESC) to power the motor. James Provost.

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Home Charging Installation Risks and Advice

Setec Powerr

In this article, we will discuss the potential hazards and provide advice on how to mitigate them, ensuring a safe and effective home charging setup. Unauthorized Installations: DIY or unauthorized installations can lead to improper setup, posing safety hazards and potentially voiding warranties on your charging equipment or vehicle.

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Elephant Robotics Unveils New Desktop Educational Robots for 2023

Cars That Think

This is a sponsored article brought to you by Elephant Robotics. To help more students experience robots and start learning about robotics and programming at a young age, Elephant Robotics has upgraded its AI Kit to make it more powerful and even easier to use.

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Hacking Ham Radio for Texting

Cars That Think

MicroAPRS , which is an open-source and Arduino-compatible firmware package for DIY packet radio modems. It would need a lot of power, and there's a risk of corrupting the filesystem if you don't do a controlled shutdown, a problem if the battery dies. Rechargeable batteries with a battery-management board would provide the power.

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Can This DIY Rocket Program Send an Astronaut to Space?

Cars That Think

meter-tall Nexø II rocket was powered by a bipropellant engine designed and constructed by the Copenhagen Suborbitals team. 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. Even more important, it came back down in one piece.

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