Hallo, I Hava A Switch on the Gipo 2.
This works perfekt, and I habe a Led on Gipo 16.therfore I have aded a level control which change if value from switch change to 1.
This also works and if i press teh butten the level control on gipo16 also switch between 0 and 1,but the output voltage on gipo 16 pin is - 2.5V to 2.5v ans not 0V to 5V.why is it like this
I want to do it with level comtrol becausr my mqtt server ist noch always running
Level control Led
Moderators: grovkillen, Stuntteam, TD-er
Level control Led
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- grovkillen
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Re: Level control Led
First I recommend you update to the latest release. Then I would suggest you use rules for that.
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Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you
Re: Level control Led
The GPIO Pin's Logic High output voltage is approximately 3.3V, not 5V. If you require 5V output then you'll need additional circuitry, such as a transistor buffer.... the level control on gipo16 also switch between 0 and 1, but the output voltage on gipo 16 pin is - 2.5V to 2.5v and not 0V to 5V. Why is it like this?
The current draw from a LED can attenuate the GPIO output voltage to be less than 3.3V. So your 2.5V measurement is possible. If you require the voltage to be closer to 3.3V then you will need to increase the LED's series resistor value.
- Thomas
Re: Level control Led
Yes I have checked my l7805cv was ded. So I changed it not it works. thx
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