A pump, motor or any inductive load should have a blocking diode across them to prevent kickback/flyback voltage from resetting the arduino or damaging the relay
There is a blocking diode on the arduino side of the relay and it is opto-isolated. If JV-VCC/VCC jumper is removed, the relay can be completely isolated from the arduino when another power supply is connected to the relay coils. See the relay board wiring diagram available online.
Hey! Thank you for sharing this cool project!!! I have a question. I used my computer to put in the code, and hit that "serial monitor" button to get the reading of soil moisture. But how did you manage to make it working without connecting it to the computer?
What is your experience with long term reliability of these cheap white water pumps? I have couple and after some days being submerged I can start seeing some rusty spots on one part of the pump.
Great video, would you be able to tell me how many moisture sensor can an Arduino can manage? I was thinking of deploying between 50 to 100 sensors on a field.
I imagine would would need a few Arduinos or none at all. None at all would be better since it would be cheaper and lighter. The Arduino is great for complex logic requirements, but you can do it also without. Diodes and Transistors are our friends: ua-cam.com/video/_qM3wWbzgjU/v-deo.html
@@smartthingsdiyWhat about the pumps? Are they reliable? I am asking because the seller on aliexpress states that these pumps are not supposed to be submerged and workign for a long time or something like that. So I am very curious to know what is their long term reliability. Thanks!
I got one of these pumps today and have just tested it. Moved a lot more water than expected.
Good video
Thanks
A pump, motor or any inductive load should have a blocking diode across them to prevent kickback/flyback voltage from resetting the arduino or damaging the relay
I have that problem, how to solve it?
There is a blocking diode on the arduino side of the relay and it is opto-isolated. If JV-VCC/VCC jumper is removed, the relay can be completely isolated from the arduino when another power supply is connected to the relay coils. See the relay board wiring diagram available online.
Nice I wanted to try the same thing but didn't know how
5:37 into the video, where did that 9V battery come from?
9v battery to power the Arduino (logic circuit) and AA batteries to power the water pump through the relay
Hey! Thank you for sharing this cool project!!!
I have a question. I used my computer to put in the code, and hit that "serial monitor" button to get the reading of soil moisture.
But how did you manage to make it working without connecting it to the computer?
Hey! Is is safe for the arduino to just connect it to 9V battery? Isnt there any extra step I need to do? :D
I used a LM7805 voltage regulator just to be save
Why is it decreasing when it touches water? Shouldn't the level of moisture be higher?
you were using the frtiz software then u changed, what software are u using for sketching
Still using Fritz 🤔
Can I add an LCD display for this?
i can not find the relay on the website
Is timer 0 used in this one?
Thanks for sharing
What is your experience with long term reliability of these cheap white water pumps? I have couple and after some days being submerged I can start seeing some rusty spots on one part of the pump.
I think it's really depend on material. I haven't tried to make it yet
I intend to use solenoid valve along with overhead tank line, instead of these motors. Of course the project specs will change a bit.
Great video, would you be able to tell me how many moisture sensor can an Arduino can manage? I was thinking of deploying between 50 to 100 sensors on a field.
I imagine would would need a few Arduinos or none at all. None at all would be better since it would be cheaper and lighter. The Arduino is great for complex logic requirements, but you can do it also without. Diodes and Transistors are our friends:
ua-cam.com/video/_qM3wWbzgjU/v-deo.html
Are the moister meters still working ok ?
Yeah it’s been solid so far
@@smartthingsdiyWhat about the pumps? Are they reliable? I am asking because the seller on aliexpress states that these pumps are not supposed to be submerged and workign for a long time or something like that. So I am very curious to know what is their long term reliability. Thanks!
Why calibrating using only water when in real conditions plants are in soil?
What you don’t show is how to connect the 4 black wires together so they can be connected to 1 port!?! Breadboard, stripping and wrapping,…?