Node Red Dosing Pumps

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