modified 6 years ago

three level oil indicator

00:50:59

I did this circuit a while back for a course project. It's nothing special, but it's there if you want it.

For real life application I just replaced the switches  with float sensors.

published 6 years ago

BillyT

6 years ago

500 Ohms is a bit high for a 2V 20mA Led at 9V. You could use it if the Led brightness was ok in the ambient light.

lenzrulz

6 years ago

Very nice...👍

MohammedRedha

6 years ago

Thanks

kiani

6 years ago

What do you mean lenzul! "very nice" , the colors?! You don't understand any electronics at all, zilch...

hurz

6 years ago

@BillyT, why do you think 500 Ohm is a bit high. It results in 10mA which is very bright. Im sure you cant even see a difference to a 20mA LED. So what is your input for? In practice i would go even higher in resistance and probably just drive the LED with 5mA or 2mA. Please check that for yourself in real before doing wrong recommendations or are you just bitching on @MohammedRedha circuits like Lenny and his friend @2criby normaly does? Thanks for you attention.

Robert_Kidd

6 years ago

Plonker!

kiani

6 years ago

No rob_tidd that is planck constant you are getting wuite mixrd up... Advancr stages of rabies, keep taking the medication and stay off the bottle, old but stupid boy.

hurz

6 years ago

right, planck, with 'a' and 'ck' !

lenzrulz

6 years ago

More condescension...😡

BillyT

6 years ago

@hurz you are correct with what you say about the leds, in fact I have found that most Leds today are 1.7V @ about 2mA and work well with resistors up to about 2k. What I am saying is, if you are using 2V 20mA leds, adjust the resistor to suit the ambient light.

hurz

6 years ago

No BillyT, you misunderstand. Its not that only 2mA Leds work fine with 2k resistors. Its that 20mA Leds just need 2mA or ,5mA i said, to be almost full brightness. You wont see a difference of 20mA or 10mA as we have here! Its not that Leds are 2mA Leds.

BillyT

6 years ago

@hurz, as I stated, you are correct, but as illustrated by EC in their own examples if the simulators leds parameters are set for 2V @ 20mA then that is how the components are to be selected, if you want to simulate a different real life situation, your are free to adjust the component parameters to suit. Using EC to apply 2mA current to a component that has EC parameters for 20mA is counter intuitive.

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