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Node Red Dosing Pumps

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diverjoe edited this page May 17, 2018 · 6 revisions

This is DIY, so why didn't I just use the peristaltic pumps that are on AliExpress, Ebay and Amazon? Well it comes back to mass production.

  • The pumps themselves run $9-$30 depending on where/what you get.
  • A project box would run $15.
  • 4 channel Relay to switch the pumps on and off are $5
  • 12v Power supply is $5
  • Something to step it down to 5v for the Relay and WiFi unit - another couple bucks.
  • $50-$80 new through the same channels and it is all put together, works and looks nice!

Pictures of the Front of the doser along with the VOSS bottles for chemicals

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