Read Multiple Analog values in esp8266 using Diodes

[@priyankadeshpande6618]

Sir in which software you make the circuit diagram please tell me....

[@EDISON_SCIENCE_CORNER]

Easyeda.com

[@priyankadeshpande6618]

@@EDISON_SCIENCE_CORNER thanks🙏

[@UReasonIt]

Interesting solution. What about the loss of reading sensitivity due to the diode-induced voltage drop? Also, some sensors could have higher current needs than a GPIO could provide, so a transistor may be needed for external power switching. A CD4051 analog switch may be a good choice if you need more flexibility.

[@EDISON_SCIENCE_CORNER]

Thanks. We cant do anything to override the voltage drop. We can switch sensors using a transistor driver or relay

[@unclejon1148]

@@EDISON_SCIENCE_CORNER couldn't we add in software the drop of the diod?

[@thalesmendes9425]

what software did you use to create the circuit? Thanks for your solution

[@EDISON_SCIENCE_CORNER]

Fritzing and easyeda

[@thalesmendes9425]

@@EDISON_SCIENCE_CORNER thank you!

[@souikichakib2337]

I DID THE same steps for just 2 sensors , it returns wrong values for both , for example instead of returning 1024 for both sensors it returns 524 , when i remove one and keep only one i returns 1024 in the first and nothing on the other , when i plug both sensors and triger one of them the other sensor value also changes ... any solution ?

[@EDISON_SCIENCE_CORNER]

Thats due to the dropout voltage of the diode. If you want exact values then you have to use multiplexer.

[@souikichakib2337]

@@EDISON_SCIENCE_CORNER thank you very much sir

[@indiancolumbus6381]

Sound quality awesome

[@EDISON_SCIENCE_CORNER]

Thanks

[@mr.usmanbilal]

which doide you used for it

[@EDISON_SCIENCE_CORNER]

1N4007

[@henryl7421]

Does it make a difference what diodes you us? If so, how do we decide which one to use?

[@EDISON_SCIENCE_CORNER]

Yes. You can use 1N 4007/1N4148 etc. You can use any type diode but should care about its forward voltage

[@indiancolumbus6381]

Great work 🌞

[@EDISON_SCIENCE_CORNER]

Thanks

[@yogaswaradipta3334]

thanks bro thats helping me

[@EDISON_SCIENCE_CORNER]

Ok bro

[@JobinAugustine]

This is a good idea

[@EDISON_SCIENCE_CORNER]

Yes it is

[@samreedhi5505]

Great

[@escvlogs1925]

Thanks

[@Fraud59-v5r]

👍👍

[@EDISON_SCIENCE_CORNER]

🤗🤗