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  • greghousset commented on TinkerJim's instructable The Easter Solar Engine3 years ago
    The Easter Solar Engine

    Thanks for your help.

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  • greghousset commented on TinkerJim's instructable The Easter Solar Engine3 years ago
    The Easter Solar Engine

    Apologies if I wasn't clear. I tried using your analogy but it ended up complicating the description of what I'm trying to do.Imagine that I'm using a photocell as a switch. If a person puts their hand in front of the photocell making it dark, it would increase the voltage flowing to the storage capacitor/ "bucket". I want to have three loads that trigger at three different voltage levels, let's say 2, 3 and 5 volts for the sake of this example. So if a person put their hand in front of the photocell for long enough, it would trigger the first load once the capacitor reached two volts and then would continue to charge the capacitor until it triggered the subsequent load at three volts. I realize that the first load triggering will drop the voltage in the cap but my assumption ...

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    Apologies if I wasn't clear. I tried using your analogy but it ended up complicating the description of what I'm trying to do.Imagine that I'm using a photocell as a switch. If a person puts their hand in front of the photocell making it dark, it would increase the voltage flowing to the storage capacitor/ "bucket". I want to have three loads that trigger at three different voltage levels, let's say 2, 3 and 5 volts for the sake of this example. So if a person put their hand in front of the photocell for long enough, it would trigger the first load once the capacitor reached two volts and then would continue to charge the capacitor until it triggered the subsequent load at three volts. I realize that the first load triggering will drop the voltage in the cap but my assumption is that if the user holds their hand long enough in front of the photocell, that the voltage level in the storage capacitor will continue to rise and trigger the other loads since it's connected to a wall power supply.Does this make more sense? In the end, I'm just trying to figure out the best way to have multiple loads trigger at different voltage levels.

    Thank you both for your replies! If by synced you mean having a single circuit that has multiple voltage trigger levels reading the voltage coming through a single variable resistor (the 10k Potentiometer in this case) that's actually exactly what I'd like to do if it's possible. Would you have any info, links or references that would help me in this quest? Thanks so much for your time you guys!!

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  • greghousset commented on TinkerJim's instructable The Easter Solar Engine3 years ago
    The Easter Solar Engine

    Hi Jim! I Awesome instructable. I successfully made the Easter Solar Engine following your great instructions and modified it slightly to use a 5V power source connected to a 10k potentiometer to be able to easily control how much voltage I was feeding to the circuit. So while I'm not using the Easter Solar Engine for it's energy gathering purposes, the analog voltage detector aspect using only discrete components is a perfect fit for the piece I'm working on. Is there any way to have multiple loads that trigger at various levels? I've tried connecting two Easter circuits together that have different turn-on levels. They share the same power and ground but clearly that's not the way to go because it only turns on one load with unusually behavior. The first two pictures are the single ci...

    see more »

    Hi Jim! I Awesome instructable. I successfully made the Easter Solar Engine following your great instructions and modified it slightly to use a 5V power source connected to a 10k potentiometer to be able to easily control how much voltage I was feeding to the circuit. So while I'm not using the Easter Solar Engine for it's energy gathering purposes, the analog voltage detector aspect using only discrete components is a perfect fit for the piece I'm working on. Is there any way to have multiple loads that trigger at various levels? I've tried connecting two Easter circuits together that have different turn-on levels. They share the same power and ground but clearly that's not the way to go because it only turns on one load with unusually behavior. The first two pictures are the single circuit working well and the third pic is the failed attempt of connected two Easter circuits together.Any insight would be greatly appreciated, Thanks!!

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