Hi, i'm currently doing a project on a system that can detect if the soil of the pot plant is dry or not...and if its too dry....the plant will be automatically be watered. Please help me. i need to build up a circuit for this project and i really really need a schematic diagram if anyone has it. THANK YOU!
Hi Ellen Ahling,
You can have an automatic marijuahna watering circuit and hope the cops don't bust you. :lol:
I corrected and improved the original Plants Watering Watcher-1 project because it didn't do what it was supposed to do:
1) I added a capacitor to make it dim its LED when the soil was wet.
2) I used a 74HC IC because the original Cmos IC failed when the battery voltage dropped below 3V.
3) I added a transistor to drive the LED brightly.
4) I added a low-frequency oscillator to pulse the LED to allow the battery to last for a long time.
Your application doesn't need any of these fixes and the original circuit should work fine when modified. The original circuit is here: https://www.electronics-lab.com/projects/science/008/index.html
I modified its schematic for you but haven't tried it:
was wondering... what is the Relay you're referring to? and what type of water pump do you suggest that i should use. i noticed that the LED is missing in the picture. :shock: Thanks
Hi Ellen,
I put an LED back into the circuit for you.
Select a water pump to water your pot plant, oops, I mean potted plant that is powered from the mains perhaps designed for a fish aquarium.
I couldn't find a 6V relay so I changed the supply and relay rating to 12V.
Down Under, Farnell has an Omron G6D-1A, 250VAC 1A contacts, 12V relay that is suitable.
plz give me some support about the modified plant watering watcher
1. why u use 6v dc source?
2. why u use 6v as vdd supply voltage?
3. what is the value of pin # 9 in the circiut for IC1C ?
4. is IC1A connection can taken as NOT gate?
plz give me some support about the modified plant watering watcher
1. why u use 6v dc source?
2. why u use 6v as vdd supply voltage?
3. what is the value of pin # 9 in the circiut for IC1C ?
4. is IC1A connection can taken as NOT gate?
plz give me some support about the modified plant watering watcher
1. why u use 6v dc source?
2. why u use 6v as vdd supply voltage?
3. what is the value of pin # 9 in the circiut for IC1C ?
4. is IC1A connection can taken as NOT gate?
Oh and its 9 years old! nearly as old as me!! why did you think the original author would still be around? He is but why did you think that after 9 years??