It consists in 555 feet, respectively, of 1, 2-cited two-pin, using two needles with a high water level higher than 555 when the probe capacitance between 1, 2 feet circuit leaving 555 low potential output. Contrary to the output of high potential (555 composed of a standard multivibrator). For the control points up and down the water level 555 can also
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be used to do, good simple 3 floor Picture this subject as follows:to the file much better this time! 5th Floor Or more appropriate light or infrared sensor 6 F See ah. 7th Floor Unfortunately, not enough levels can not see ah! 8 F With a zoom control, it works in between the cut-off and saturation, thus to control a triac on and off the line, Oh 10 F Upstairs, "Lieutenant, " Hello, Can the "water level controller" information sent to my mailbox, aqiang_02318@sina. com, thank you! ! ! ! 11th Floor No map, make Taiwan well A total of 12 topics 2 pages, current page 1 Water level controller for the water tower as shown in the circuit. The figure, IC2 available a variety of 555 integrated circuits. Decoder integrated circuit for the infrared receiver IC3 CX20106A. IC4 available 4N25, 4N26, PC817 and other optocoupler. Part of the infrared receiver infrared receiver can be purchased finished components or integrated infrared receiver can be easy to produce and improve reliability. VD1, VD2 and VD3 use of infrared remote control transmitter and receiver diodes. J made a new selection of memory self-locking relay, relay and general appearance of the product the same, the difference is not required to maintain the current after the pull, pull and release only a certain pulse drive power is required, then the mechanical structure to maintain " locked. " The main parameters: Rated voltage 12V, trigger pulse w 20ms rectangular...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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