This circuit is intended to signal when a plant needs water. A LED flashes at a low rate when the ground in the flower-pot is too dry, turni...
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Showing posts with label Sensors. Show all posts
Simple Photo Detector with TTL Output
This is a photo detector, a detector with TTL output light that can be used in projects for Arduino. This circuit offers low output level wh...
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Easy Fog Lamp Sensor
( www.w3circuit.blogspot.com ) For several years now, a rear fog lamp has been mandatory for trailers and caravans in order to improve visib...
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Temperature Sensor Circuit using 1N4148 diode
There are components that have special characteristics, one of them is the 1N4148 diode, it is a diode High-speed, and its switching speed i...
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