Auto-Flow: Easy DIY Water Sprinkler System by Mikel Emmanuel De Crus

By Mikel Emmanuel De Crus

The Auto-flow method is an easy DIY computerized water sprinkler method .It is designed to instantly water crops in a backyard within the universal loved ones. the advance consists of designing an automatic keep watch over valve that's at once attached to the water offer (in this example the typical loved ones tap or tap).The keep an eye on approach could have a 555 timer digital circuitry hooked up to water inlets pipes to accomplish the timing keep watch over. The approach layout is designed to water the vegetation at certain durations therefore permitting the occupants of the loved ones to take care of their backyard even if now not at domestic. This family product encompasses a timing circuitry hooked up to a valve that permits the stream of water from a tap to water the vegetation via a tube. the automatic water sprinkler approach during this undertaking was once termed “Auto-Flow” as its identify represents that the approach is absolutely automatic to permit the to water crops in his or her backyard on the clients discretion

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The value of the capacitor is set first in order to determine the value of the resistor. The calculations involved and the results obtained will be shown in the following pages. The trigger input to this circuit which is the output of the astable circuit which must be low. The termination of this setting the reset button could be activated which will result in pin 4 being invoked (refer to pin 4 functions). 1 The Control Algorithm for the Time Setting: Whenever a trigger pulse is applied to the input the 555 timer will generate its single duration output pulse for the monostable circuit and for the astable circuit it will continue pulsing until the cycle is interrupted.

2 Definition of pin functions: Pin 1 (Ground): The common or ground pin is the most negative–supply potential of the device. This is pin is normally connected to the common ground of the circuit. Pin 2 (Trigger): This is the input pin to the lower comparator (labeled D) in the block diagram. It is used to set the latch will cause the output to go high. Triggering is accomplish by taking the pin from above to a voltage level of 1/3 V + which allows input levels that are sensitive ,slow-rate changing waveforms as well as pulses to be used as trigger sources.

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