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Troubleshoot your car battery with ATtiny.
Hi Mark 62726,Thank you for your comments.You can have the CD4001 operate off 5V. You would need a 5V coil relay with contacts rated at least at 1A at 120Vac, and instead of the rectifier diodes and 7812 voltage regulator, you could use your 5V phone charger.rlarios
Hi rlarios, i want to say thank you for sharing this wander full instructable and I have a question, hope you can answer.Can this circuit work in 5v? I have tons of 5v phone chargers, would be perfect for me :)
Build a simple water level control
I want to make a printed PCB. So what can I do. I checked your cadsoft eagle file but it is doesn't seem to work on my cadsoft eagle so what can I do. Pls send me PCB design in PDF format so I can print it and itche it on PCB.
First clean flux residue with a cotton swab soaked in alcohol. Make sure board is clean on component side as well.Let me know if it still doesn't work so we continue debugging your control board.rlarios
Sure, here it is
DarshP5,Show me a picture of solder side of your PCB.rlarios
hey , sorry for the late reply.i found out the problem , it was a small cut in the ground trace of the PCB , i fixed it, but now the circuit is acting weird , as it turns on the pump as soon as the water goes below the upper level. and then, the pump protect seems not to work and infact the circuit only works only when they are out of water. Its confusing ! please help :)
it depends on what you mean by that. Circuit operates on dc and I've seen some varying low voltage can be used and then rectified in order to be detected. There are other circuits out there that operate off ac power using relays, in case you're interested look them up on YouTube. rlarios
DarshP5,Wires wrapped around screws the way it's shown in pictures won't work properly. Crimp round terminals to wires ends and fasten terminals to either stainless steel or galvanized bolts using nuts and washers for a secured connection so they can be used as electrodes. I believe you can find these bolts, nuts and washers at home depot or your local hardware store.Let me know how this works. If you're still stuck with it at least we know electrodes won't be a problem. rlarios
See comments below.
First I tried using a aluminium strip , but the circuit dint work , so i used a metal Screw as i had tested with metal screws in the bucket, i have posted the pictures of them all , the black and blue wires are the ground , green is the lower level and the red one is the upper level , and the blue one is the pump protect. (dont worry the pump protect and the ground wires are submerged in the underground tank.) and the other wires are as shown in the picture. Any Help Would Be Appreciated . :) thanks
Hi there DarshP5,Please provide pictures showing all electrodes in overhead tank which is the one that controls pump operation. rlarios
please can you send me the grafcet explain the operation of this project ???
I put the cd 4001 in with pin 1 towards r1. Is that correct?Better pictures would be nice for those of us who are color blind and too old to read tiny things.Big question is can I substitute float switches for the top and bottom sensors to ground?I could guess the 12 v dc needs to be on until the water lowers and breaks the circuit for the bottom sensor, and rises and finally breaks the circuit for the top one.or vice a versa - My floats can go either way.Going to use this to run a vegetable hydroponic garden on the balcony of my appt. About half of the time their roots will be submerged. Have heard that plants are highly reactive (grow faster) to voltages - would like to run two test - one with the roots being grounded and the top of the plant with a weak dc positive charge, and another with the inverse. (will be an interesting test)can I do that with this circuit? At least one of them?
can u mail me circuit diagram of this firstname.lastname@example.org - SaqlainS1
Saq,Replied though email and not sure if it will show up here in the forum or not. Try clicking the download pdf link, if not, go to the Jameco kit link below. Theory and schematic are in their docs I believe. Good stuff there. Kid - kid casco
I built a radon mitigation system for my well water. This controller worked great!
Nice one! I have built a similar one on a bread board and tested by keeping it running for about an hour. Ionization leads to deposits on the leads/terminals inserted in water. Won't this affect performance over time and hence, required cleaning of such inserted leads periodically? If yes, is there any way to avoid this?
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