| Anyone with an interest in radio DX-ing whether it be long wave, VHF or anywhere in between are faced with the same questions: which aerial...
More about monitor (195)
| A characteristic property of DC motors is that they can also act as generators, due to the complementary nature of Faraday’s and Lenz’s laws...
| During the past year the author has built a standalone solar panel system, which included the construction of the panels themselves. Such a...
| This voltage monitor circuit is based on an Elektor design with a 555 timer IC in the book 302 Circuits, which uses two LEDs (red and green)...
| This circuit was originally designed for monitoring the charge status of the batteries in a solar-powered water feature. However, it can be...
| Considering its low cost, a commercial walkie-talkie (PMR) set are very suitable for use as a wireless baby monitor, with the addition of se...
| The LiPo Monitor simplifies voltage monitoring of Lithium Polymer (LiPo) batteries during use. You clearly want to avoid discharging them to...
| Those of you who go camping regularly will have experienced this before: you switch on a powerful electric hob just when the fridge is on an...
| Destructive) recycling is undoubtedly necessary for future generations to suffer as little as possible from present-day excesses in consumpt...
| In this instalment, we add a miniature infrared camera with integrated image processing capability to the ATM18 system. This makes it possib...