Hello All!
I'm fairly new to Raspberry Pi, but I'm a fairly old hat at electronics. Here's what I'm doing:
I have a kegerator with 4 taps. I also have two young children (one of whom just figured out how to open the taps). My basic plan is to have 4 solenoid valves that will prevent beer flowing unless an appropriate password is entered via a website hosted on my pi.
I have everything working to enable the gpio pin and automatically disable it after 2 minutes. The issue I'm having now is on the other side of this circuit. The SSR I'm using ( http://www.amazon.com/gp/product/B009EQG1UY/?tag=skimlinks_replacement-20 ) is allowing some voltage (2.3-2.5 v ish) to leak through even when the SSR is not powered from the input side. The power supply is 12v so that's close to 20% of it's max flow coming through.
My concern is for the health of the solenoid valve if it being given a trickle of power over a long period of time. Is there a way to draw down this voltage before it reaches my valves? Should I not be using this tpye of SSR? Is there a better solution to this whole problem that I've simply overlooked?
Any and all help/advice would be wonderful.
Thanks in advance!
I'm fairly new to Raspberry Pi, but I'm a fairly old hat at electronics. Here's what I'm doing:
I have a kegerator with 4 taps. I also have two young children (one of whom just figured out how to open the taps). My basic plan is to have 4 solenoid valves that will prevent beer flowing unless an appropriate password is entered via a website hosted on my pi.
I have everything working to enable the gpio pin and automatically disable it after 2 minutes. The issue I'm having now is on the other side of this circuit. The SSR I'm using ( http://www.amazon.com/gp/product/B009EQG1UY/?tag=skimlinks_replacement-20 ) is allowing some voltage (2.3-2.5 v ish) to leak through even when the SSR is not powered from the input side. The power supply is 12v so that's close to 20% of it's max flow coming through.
My concern is for the health of the solenoid valve if it being given a trickle of power over a long period of time. Is there a way to draw down this voltage before it reaches my valves? Should I not be using this tpye of SSR? Is there a better solution to this whole problem that I've simply overlooked?
Any and all help/advice would be wonderful.
Thanks in advance!
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