New build.

[Christopher Kindig]

Ok so I finally got around to reworking my cable for the display and it works correctly, next to get network issue straight and set up dosing pumps. I have 4 now I will order 2 more to set as future use total of 6 heads. Will Ferduino run 12 volt dosing pump or is there something specific I have to do?

[Fernando Garcia]

Hi!

If the board is powered with 12V you can use this wiring.

Otherwise will get 12V from PC power supply as I told on first post.

Best regards.

[Christopher Kindig]

Hi Fernando!

So I will connect 12 volt to + motor then negative is switched on and off through Ferduino? As sown in the schematic for 12 volt.

[Fernando Garcia]

Yes, make sure that GND of Power supply and Ferduino M. are common.

[Christopher Kindig]

do I use the ground from RJ45 jack?

[Fernando Garcia]

RJ45 for dosing pumps haven't a GND.
Take it from any other place.

[Christopher Kindig]

Hi Fernando
I guess the more simple question would how would I feed 12 volts to the board without over loading the voltage regulator and , my 5 volt relays? Would I just use the the DB25 VIN port or is there another way. I ask a lot because I have gotten so far and do not want to damage the board.

-------------------------------- Last edited Thu Jan 22, 2015 8:22 pm --------------------------------

I think I have it, I used vin brown\brown&white to supply 12 volt to RJ45 then then connect to dossing pumps and it worked.

[Christopher Kindig]

ok so back to the display issue by what you have pointed out I should have 3.3 volts on the tab of the regulator, when I check it I only have 1.7 volts so I will find the schematics and Bridges the appropriate resister.

[Christopher Kindig]

All is working now, I need to get this up to my tank after I do some clean up and finishing touches.

[Christopher Kindig]

Hi Fernando, I connected 12 volt to brown wire from RJ45 for dosing pumps and all the strange issues I was having with my net settings went away it is working consistantly now, Iam building the box for my dossing pumps and will post some pics when it's done, my PH and ORP readings seem to very erratic any thoughts .

[Fernando Garcia]

Hi!

If the probes are on sump, maybe you have problem of electric noise.

Check page 10 of this datasheet: http://atlas-scientific.com/_files/_dat ... asheet.pdf?

So, you need of galvanic isolator: http://atlas-scientific.com/product_pag ... r-iso.html

I did a small shield to place this isolator.

I sent the project to Sueur Aurelien and he bought 10 PCB's, send a PM to him and ask if can sell a piece for you.

Best regards.

[Christopher Kindig]

I sent a pm to find out if Sueur has any to sell.

[Christopher Kindig]

[Fernando Garcia]

Hi!

Your wiring for dosing pump can be more simple.

Put the diode directly on motor.

See how I did the wiring for my tests.

Ps. Add images bigger to your albums please. If you have difficult the convert images try a program called "Format Factory" and select the max. resolution to output as 1024 x 768. The image have good quality and small size (in bytes).

Best regards.

[Christopher Kindig]

Hi Fernando I look into that for the images, as for motors I want them to be easy to take out in case of problems.

[Ruben Wijnhoven]

Christopher i found this:

Any voltage between 7 and 12 V.

If you have the board powered with 12V, this voltage will be available on connector DB25 and RJ45 on pins called V = VIN. So you can use this 12 V to supply the relay board and dosing pumps otherwise need of an external power supply.

So i am guessing you are now powering the complete board at 12v? So no more use for the 5v on the board. How is your regulator doing heat wise?

@fernando shouldn't vin actualy be vout (voltage out)?

[Christopher Kindig]

Yes, I had some thing else going on. The way mine is set up now is 6 volts on vin on db25 and all is stable. I will not set 12 volts to the board it gets hotter than I like, so yes I power board and relays with 6 volts and, dosing pumps with 12 volts all from the computer power supply. I do not have the brown/brown and white wires hooked up from RJ 45.

[Ruben Wijnhoven]

See my post edit above. Why do you voltage in at db25? You should be able to use the normal power connector for that.

[Christopher Kindig]

I had some issues with voltage from there. For some reason the voltage was not stable and was causing IP address to change at random as soon as I connected as I have it now alll my IP issues stopped.

[Fernando Garcia]

Hi!

Christopher Kindig » Today 4:59 am wrote:

Yes, I had some thing else going on. The way mine is set up now is 6 volts on vin on db25 and all is stable. I will not set 12 volts to the board it gets hotter than I like, so yes I power board and relays with 6 volts and, dosing pumps with 12 volts all from the computer power supply. I do not have the brown/brown and white wires hooked up from RJ 45.

It not makes sense for me. The circuit connected to V = VIN on DB25 isn't connected to any other circuit else to dosing pump.
Before power jack have a diode (next of reset button) so, the 6 volts can't go to VIN and regulator 5V.
The problem should be other and this case is only a coincidence.

Ruben Wijnhoven wrote:

Christopher i found this:

@fernando shouldn't vin actualy be vout (voltage out)?

What you mean?

VIN: The input voltage to the Ferduino board when it’s using an external power source (as opposed to 5 volts from the USB connection or other regulated power source). You can supply voltage through this pin, or, if supplying voltage via the power jack, access it through this pin.

From Ferduino specifications.

Best regards.

-------------------------------- Last edited Thu Jan 29, 2015 9:00 am --------------------------------

Christopher Kindig » Yesterday 10:06 pm wrote:

Hi Fernando I look into that for the images, as for motors I want them to be easy to take out in case of problems.

Add a RJ45 female to your enclosure.