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I found this board to connect with the dosing pump and also one to convert from 5v to 12v.
Does it work perfect?
I'm researching and the more plates I find the better
https://pt.aliexpress.com/item/40012077 ... 4440StVljW
https://pt.aliexpress.com/item/40000645 ... 0058389292
Forum ‹ Members section ‹ DIY Ferduino controller ‹ ULN2003 and step down modules
ULN2003 and step down modules [SOLVED]
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Post Number:#1
Mon Jul 05, 2021 11:07 am
Mon Jul 05, 2021 11:07 am
Posts: 4
Topics: 4 Solve rating: 0 Joined: Mon Jun 21, 2021 10:20 pm Topics: 4
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Last edited by Fernando Garcia on Mon Jul 05, 2021 1:21 pm, edited 2 times in total.
Reason: Changed the title to a more suitable.
Reason: Changed the title to a more suitable.
Post Number:#2
Mon Jul 05, 2021 1:21 pm
Mon Jul 05, 2021 1:21 pm
Posts: 1699
Topics: 38 Images: 301 Solve rating: 233 Joined: Mon Mar 03, 2014 5:59 pm Topics: 38
Age: 41 Location: São Paulo Gender: National Flag:
Hi!
This ULN module will give more problem than solution.
Separated module require more wires and more wires are susceptible to bad contact and so on.
The circuit for dosing pumps or fans is very simple and can be assembled in the prototype shield.
Maybe this picture can make the things more clear to you.
Edit:
This step down module should be used to convert 12 V from power supply to 5 V.
5V is to feed Arduino and others circuits.
Best regards.
This ULN module will give more problem than solution.
Separated module require more wires and more wires are susceptible to bad contact and so on.
The circuit for dosing pumps or fans is very simple and can be assembled in the prototype shield.
Maybe this picture can make the things more clear to you.
Edit:
This step down module should be used to convert 12 V from power supply to 5 V.
5V is to feed Arduino and others circuits.
Best regards.
Post your doubts on forum because it can help another user too. Just PM me for support if it's absolutely necessary.
2 posts
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