We’ve seen [Johan]’s AA-battery-sized Arduino/battery crossover before, but soon (we hope!) there will be a new version with more MIPS in the same unique form factor! The original Aarduino ...

He wanted to do a little more with the equipment so he ditched the watch and built an Arduino-based heart rate monitor. He’s still using the chest strap and was happy to find that SparkFun sells ...

Battery monitors and testers determine the health and operating capability of batteries. Sometimes known as battery management devices, they can monitor charging levels, voltage and temperature ...

Usually, these units are monitors or analyzer or diagnostic system used as standalone instruments in a lab or as part of an OEM UPS, battery power supply, or other energy storage system. Portable / ...

The entire program is just 33 lines long, and you can opt to modify it to add more photoresistors to monitor for light ...

You'll find plenty of under-$200 business and general-purpose monitors with screens in the 24-inch range. As a rule, they have very basic features and limited port selections. The HP 24mh offers ...

The ViewSonic VG1655 offers some uncommon features for a budget portable monitor. A built-in, fold-out stand offers a wide tilt range. A five-way mini-joystick controller lets you access a full ...

There's also a Bluetooth battery tracker available to monitor battery status on the user's phone. XS Power is a newer automotive battery brand, and one that's made its mark in the industry with ...

However, most cars will cut off the circuit to the 12v ... plug-in battery chargers and conditioners. Its solar-panel kits incorporate some of the same technology, with an electronic monitor ...

Buying one of the best gaming monitors is important if you want to experience your favorite titles at the highest quality levels. If you’re fortunate enough to own a high-end gaming rig ...

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