Hi all,
I am making a simple black and white bubble sensing circuit using LM358, IR LED, Phototransistor(L14G1) and potentiometer. I am getting several problems using this phototransistor because of daylight. It is also not reliable smtm it work fine but again it dont.
Previously I used L14G2 and all other resistance values were same and it was working fine. Then I ordered L14G2 but the supplier shipped me L14G1/3 /ST- . Now it is not working as before.
Also, I have to replace the potentiometer with two fixed resistances for further application of this circuit. I am totally stucked here and could not think how to proceed.
Please reply ...
kundan
I am making a simple black and white bubble sensing circuit using LM358, IR LED, Phototransistor(L14G1) and potentiometer. I am getting several problems using this phototransistor because of daylight. It is also not reliable smtm it work fine but again it dont.
Previously I used L14G2 and all other resistance values were same and it was working fine. Then I ordered L14G2 but the supplier shipped me L14G1/3 /ST- . Now it is not working as before.
Also, I have to replace the potentiometer with two fixed resistances for further application of this circuit. I am totally stucked here and could not think how to proceed.
Please reply ...
kundan
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