Co2 Carbon Doser for CaRx

[Michelin]

Already made prototipe... I have to understand the relais life.... Attached the video that is proving the functionality... I used nodemcu with a Chinese co2 12v valve... Let me know if someone is interested I will post complete build

 

[Daniel@R2R Verified Admin]

Post up the build, please. Looks like a great job on it so far!

 

[Michelin]

ok so i attache a block diagram as the circuit is made....


all the boards are low cost and easy to find on amazon or aliexpress or ebay

Also I add the link and name of the parts used

Amazon.com: Easyget 5pcs Sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board for Arduino: Home & Kitchen

Amazon.com: Easyget 5pcs Sets 28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board for Arduino: Home & Kitchen

amzn.to

Amazon.com: KeeYees 6PCS LM2596 Step Down Buck Converter Adjustable DC to DC 3.2-40V to 1.25-35V Voltage Regulator Module: Home Audio & Theater

Buy KeeYees 6PCS LM2596 Step Down Buck Converter Adjustable DC to DC 3.2-40V to 1.25-35V Voltage Regulator Module: Electronics - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

amzn.to

10Pcs ULN2003AN 7 Darlington Pairs, 50V 500ma per channel, by Tech Express: Amazon.com: Camera & Photo

10Pcs ULN2003AN 7 Darlington Pairs, 50V 500ma per channel, by Tech Express: Amazon.com: Camera & Photo

amzn.to

https://amzn.to/2lbwfkl

Also after that i loaded easySPS firmware to control the co2 valve

ESPEasy - Let's Control It

www.letscontrolit.com

and after i insert a rule to open and close the valve open for 30ms close the amunt the time needed

I will inserted later the code used for the rule.

let me know if someone need more information