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A DIY E-bike Conversion on the Cheap

Cars That Think

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. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.

DIY 145
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A DIY E-bike Conversion on the Cheap

Cars That Think

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. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.

DIY 98
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?How a Design Battle Between Chip Engineers Led to Polaroid’s Revolutionary SX-70 Camera

Cars That Think

This article was first published as "The battle for the SX-70." The motor control module contained a linear control IC, an NPN motor drive transistor, and a discrete PNP dynamic braking transistor, and gave the designers little trouble. At the final count, some 400 transistors were used. A PDF version is available on IEEE Xplore.

Design 123
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Exclusive: FAA Investigates If It's Safer to Leave Cellphones On

Cars That Think

The series of tests, which occurred this summer in the skies over Virginia, used commercial smartphones connecting to standard 4G and 5G wireless networks operated by AT&T, T-Mobile and Verizon, according to documents filed with the Federal Communications Commissions (FCC).

Virginia 108
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Who Really Invented the Thumb Drive?

Cars That Think

The gadget, roughly the size of a pack of chewing gum, held 8 megabytes of data and required no external power source, drawing power directly from a computer when connected. Computer users badly needed a cheap, high-capacity, reliable, portable storage device. Flash memory became cheap and robust enough for consumer use by 1995.

Singapore 145
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IoT in Electric Vehicles: A Success Factor For the Future

Get Electric Vehicle

Today in this article we will be discussing, What exactly is IoT? The Internet of Things, or IoT, refers to the billions of physical objects connected to the internet, collecting and exchanging data throughout the world. Design autonomous cars. Do we use IoT in Electric Vehicles ? How IoT is shaping our present and the future?

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Build a Passive Radar With Software-Defined Radio

Cars That Think

The biggest leap forward happened in 2012 when it was discovered that USB stick TV tuners using the RTL2832U demodulator chip could be tapped to make very cheap but effective SDR receivers. Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs.

Building 100