Hello! Thank you very much for your videos. I am Brazilian and I love your projects. Thanks for sharing the gerber. It's very nice. I am 54 years old, but I feel like a child with his projects. Obrigado
I have made my own using these components. # 433mhz RF module for wireless communication, # two arduino nano, # one HC-SR04 ultrasonic sensor to check water level in the tank, # one relay to actuate motor, # 16x2 lcd (i2c) it shows the percentage of water in the tank, # one touch sensor to turn-on motor, # rgb led to indicate water level, # two Hi-link SMPS to power both setups one in the tank and another near motor or wherever u want to place in the house.... #when i touch the surface of touch sensor motor turns-on when water level reaches 100% then motor turns-off automatically. I have been using it since last two months and its working perfectly. I also made it for my friend he is satisfied with that too
Hi! I would need a PCB that is not 7-channel but 10-channel. I think two pieces of ULN2003 would be needed on the PCB. How and with what program could I modify the original plan?
Nice project, thank you for share :) Just one question, what maximum cable length does the integrated circuit support to be able to turn on the leds without problems?
It for half an hour only, after that all less goes off. If I switch off and again on the circuit, leds giving just small blink and then turning off. Pls give a solution 
is there a way to add a buzzer for tank full indication but should turn off automatically after duration like 2-3 min as water after filling will be there for quite sometime at full tank state
@@Stefano91ste grazie stefano .......gentilissimo.Ti chiedo una cosa, volendo inserire un sensore di rilevamento ad ultrasuoni ( per evitare corrosione fili a lungo termine), c'e la possibilità di farlo?
Hello my friend. How are you? Today the PCBs that I bought at JLPCB arrived. Very fast delivery, just two weeks. I loved the PDB´s. I bought VU meter, Led Thermomete, ULN_2003_water, Police Light. Everything very cheap. Thanks!
Hello =) Leave a LIKE! and if you missed it, this is my previous video about the LED Police Light: ua-cam.com/video/PtmEqcRbu4w/v-deo.html
Hello! Thank you very much for your videos. I am Brazilian and I love your projects. Thanks for sharing the gerber. It's very nice. I am 54 years old, but I feel like a child with his projects. Obrigado
Hi, thank you so much for appreciating my work! Obrigado!
Esse Ci tem fibal AN. Ele é de 5V de maxima de entrada. Os demais que são de 6 a 15V
Your channel is a gold mine! I loved your content!
Thank you so much for appreciating my work :)
I have made my own using these components.
# 433mhz RF module for wireless communication,
# two arduino nano,
# one HC-SR04 ultrasonic sensor to check water level in the tank,
# one relay to actuate motor,
# 16x2 lcd (i2c) it shows the percentage of water in the tank,
# one touch sensor to turn-on motor, # rgb led to indicate water level,
# two Hi-link SMPS to power both setups one in the tank and another near motor or wherever u want to place in the house....
#when i touch the surface of touch sensor motor turns-on when water level reaches 100% then motor turns-off automatically. I have been using it since last two months and its working perfectly. I also made it for my friend he is satisfied with that too
Hi! I would need a PCB that is not 7-channel but 10-channel. I think two pieces of ULN2003 would be needed on the PCB. How and with what program could I modify the original plan?
Hello there. I'm new to this but you make this look very easy. Could I ask you where I can buy 3 of these PCB's please? I'm in the UK. Thanks.
Nice project, thank you for share :) Just one question, what maximum cable length does the integrated circuit support to be able to turn on the leds without problems?
Hi, I tried up to 2 meters of cable and it works without problems. I didn't go further...
What about water electrolysis? I want to make a water level indicator for my bedroom evaporative humidifier.
What is the difference between unl2003A and unl2003L ?
It for half an hour only, after that all less goes off. If I switch off and again on the circuit, leds giving just small blink and then turning off. Pls give a solution

Can it work with a 9volt battery. If so how would the resisters change.
Ye pcb milti h kya
Nice one. Can i use another resistor instead of 1k Ohm? Please reply me
Hi, yes if it is a value close to 1K
@@Stefano91ste I've already tested it, 1K resistor for LED and 10K for Tanky side wire is best for this circuit... Thanks for reply by the way
Nice project
Thank you :)
Can we read as digital value from this IC to microcontroller?
Hi, no only analog signal
@@Stefano91ste I might can catch only HIGH _LOW from this? Isn't it?
simple & sober project excellent sir
BUENOS DIAS GRACIAS POR COMPARTIR Y QUISIERA SABER COMO COMPRAR OENCARGAR EL CIRCUITO IMPRESO GRACIASSSS
that is an interesting circuit bro I never thought of having a LED liquid level indicator cool man 😊
Hi, thank you very much! in the past I also made a version of this circuit with transistors
Can I use this overhead tank 25 ft
Yes you can
necesito 4 placas de este circuito electronico como los compro????
I want to buy the complete set as above, where can I buy it?
Hi, I share PCB gerber file, you can use it to order pcbs from manufacturers like JLCPCB
What is resistor value if I'm going to use 3mm led?
Hi, use the same 1 Kohm resistors :)
is there a way to add a buzzer for tank full indication but should turn off automatically after duration like 2-3 min as water after filling will be there for quite sometime at full tank state
Hi, a buzzer with a timer circuit should be added, which turns off the buzzer after a certain time
hello what program do you use to make your circuits example proteus, fritzing
Hello, i use Sprint Layout 6.0
Can you do it with 5 volts?
Yes, but with transistor like this: ua-cam.com/video/XKGtgbS1Ovw/v-deo.html
Did you check it With the distance of over head tank and ground level ?
Hi, I didn't understand the question, but in a 2 meter high tank it works fine.. with higher heights it should work but I can't guarantee it.
No.problem about the height.
Hi there! I need 4 of them, can you sale does to the public?
Hi, I don't sell PCBs, I shared the gerber file in video description
Do you have any of these for sale?
No, I don't have any more, but you can order as many as you want from jlcpcb, in video description you can find the gerber files for this PCB
Che misure sono del pcb? Sull'ordine bisogna inserirle?
Ciao, no una volta caricato il file il sito riconosce le misure, ad ogni modo sono meno di 10x10 cm in modo da restare nel range per l’offerta dei 2$
@@Stefano91ste grazie stefano .......gentilissimo.Ti chiedo una cosa, volendo inserire un sensore di rilevamento ad ultrasuoni ( per evitare corrosione fili a lungo termine), c'e la possibilità di farlo?
I want blank PCB for this project.
You can order it on JLCPCB using the gerber file I shared in video description
Great job , thanks a lot for PCB file
Thanks you for appreciating my work!
Dc volt ? , 9 volt led 2 working other not working
Hello my friend. How are you? Today the PCBs that I bought at JLPCB arrived. Very fast delivery, just two weeks. I loved the PDB´s. I bought VU meter, Led Thermomete, ULN_2003_water, Police Light. Everything very cheap. Thanks!
Hi, thanks to you for appreciating my work :)
hello. i would like to buy this pcb. how can i do it
Hi, you can download the pcb file from the description of this video and order the pcb on JLCPCB, in the video I show the whole procedure.
You did not speak a word, but explained it well
Thank you so much!
Hola algún número para contactarte ?
Does anyone out there have a board for sale?
Hi, you can download the PCB files from the video description and buy the boards on the JLCPCB website
Muy bien trabajo, sólo tiene un problema....
What problem?
@@Stefano91ste se oxida(sulfata) el cobre cuando hace contacto con el agua....estoy buscando un material para ese problema.
2003AN is 5V 2003A 6 to 15V
I need one pcb can u send ..
Hi, I can't ship PCBs
not working in water
Remove tank full top led and connect or contact parallel with 12v buzzer ,,,,, 👍
Sir app ka mobile number kya hai
👍🏻👍🏻👍🏻👍🏻👍🏻👏👏👏👏
😎😎😎
Show show
Thank you :)