Forum Hardware Others components Dosing pump/ph probe problem

Dosing pump/ph probe problem


Post Number:#1 Post Sat Mar 03, 2018 6:33 am
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy
Hi Fernando,
the project for my aquarium continues.
now I'm working on the dosing pumps.
I have a problem with the ph probe.
when I connect the gnd of the power of the dosometric pumps in common with the gnd of the ferduino the ph probe reads 14.
I read about the iso board but I do not think it's possible to buy it anymore
thank you

Post Number:#2 Post Sat Mar 03, 2018 9:56 am
Posts: 1657
Topics: 38
Images: 280
Solve rating: 220
Joined: Mon Mar 03, 2014 5:59 pm
Topics: 38
Age: 35
Location: São Paulo
Gender: Male
National Flag:
Brazil

Hi!

Are you using LC filter for this power supply too?

Are you using diodes as explained on topic about Ferduino M.?

Best regards.
Please do not PM me for support unless it is absolutely necessary.

I'll not write custom function to nobody unless you can pay for my job.

Post Number:#3 Post Sat Mar 03, 2018 11:08 am
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy
yes, I use the filter.
but I have the problem when I power the board with the external power supply. when I use the usb the ph probe detects correct values.
if I change the power to 7v the ph goes 14.
now I was trying the dosage pumps by feeding the board with the usb and the 12v pumps

Post Number:#4 Post Sat Mar 03, 2018 11:23 am
Posts: 1657
Topics: 38
Images: 280
Solve rating: 220
Joined: Mon Mar 03, 2014 5:59 pm
Topics: 38
Age: 35
Location: São Paulo
Gender: Male
National Flag:
Brazil

Christopher haven't more ISO boards to sell?
Please do not PM me for support unless it is absolutely necessary.

I'll not write custom function to nobody unless you can pay for my job.

Post Number:#5 Post Sat Mar 03, 2018 11:51 am
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy

Post Number:#6 Post Sat Mar 03, 2018 12:06 pm
Posts: 1657
Topics: 38
Images: 280
Solve rating: 220
Joined: Mon Mar 03, 2014 5:59 pm
Topics: 38
Age: 35
Location: São Paulo
Gender: Male
National Flag:
Brazil

Can you find someone able to assembly the board with SMD parts for you? I can sell only the PCB for you.
Please do not PM me for support unless it is absolutely necessary.

I'll not write custom function to nobody unless you can pay for my job.

Post Number:#7 Post Sat Mar 03, 2018 1:39 pm
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy
I work with many electricians. I can try to ask them. can you tell me the parts that I have to buy besides the pcb?

I have 3v dosing pumps. can I use them by feeding them with the 5v socket?
I believe that the vin by feeding the board with the USB does not go

Post Number:#8 Post Sat Mar 03, 2018 3:52 pm
Posts: 1657
Topics: 38
Images: 280
Solve rating: 220
Joined: Mon Mar 03, 2014 5:59 pm
Topics: 38
Age: 35
Location: São Paulo
Gender: Male
National Flag:
Brazil

can you tell me the parts that I have to buy besides the pcb?


I'll send it for you after buy the board. It's a small amount of parts.

I have 3v dosing pumps. can I use them by feeding them with the 5v socket?


Obviously not!
Please do not PM me for support unless it is absolutely necessary.

I'll not write custom function to nobody unless you can pay for my job.

Post Number:#9 Post Sat Mar 03, 2018 4:11 pm
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy

Post Number:#10 Post Sat Mar 03, 2018 4:43 pm
Posts: 1657
Topics: 38
Images: 280
Solve rating: 220
Joined: Mon Mar 03, 2014 5:59 pm
Topics: 38
Age: 35
Location: São Paulo
Gender: Male
National Flag:
Brazil

say no because the voltage is different (I would lower the voltage with diode)


Don't try make what you don't understand otherwise you will damage your board.
Please do not PM me for support unless it is absolutely necessary.

I'll not write custom function to nobody unless you can pay for my job.

Post Number:#11 Post Sat Mar 03, 2018 4:46 pm
Posts: 33
Topics: 10
Images: 8
Solve rating: 1
Joined: Wed Jan 10, 2018 7:30 am
Topics: 10
Age: 40
Gender: None specified
National Flag:
Italy




  • Similar Topics
    Replies
    Views
    Last post

Return to Others components





Who is online

Users viewing this topic: No registered users and 1 guest

cron