please help me in making circuit diagram of my project.
"i want to make the water over flowing project which geton/alaram when the tank is ful or going to overflow"
please help me me by giving me circuit diagram of this project
with waiting for ur answers
mstechca said:do a search for an audio oscillator, and build it. As soon as you managed to produce a tone, your circuit is 99% done.
Now disconnect one battery terminal from the circuit, and instead of connecting the hanging wire and the battery terminal to a switch, you connect it to the water. Yes, use another wire! You dont want both battery terminals to be simultaneously connected to the water!!!
btw, WATER CONDUCTS ELECTRICITY!
mstechca said:btw, WATER CONDUCTS ELECTRICITY!
Salt and fertilizer in damp soil make a fairly good conductor that increases its resistance as the soil dries.JimB said:However put some thing like salt or sulphuric acid in water and you have a good conductor.
My Pants Watcher-2 project avoids these problems by using AC at its probes.Where probes with voltage are dipped into the water you will get some electrolysis taking place which could give confusing results if the amount of current is critical to the circuit operation.
Also electrolytic action may "eat away" one or both of your probes after a length of time.