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  1. photodiode - Understanding basic photoresistor circuit - Electrical ...

    May 10, 2019 · I built a working sensor using the arduino starter kit photoresistor (datasheet) using a 10kOhm resistor and a 5V source but want to understand it better. Edit: afer helpful …

  2. Why do I have to use an additional resistor with a photoresistor?

    I mean, photoresistor is already a resistor, why do we have to decrease the voltage in the circuit with an additional resistor? Thanks in advance for your answers.

  3. Light Dependent Resistor Photoresistor LDR: gl5516 vs gl5506

    Sep 30, 2017 · Light dependent resistors (LDRs) today are not that complicated. Designed originally to help count "bottles and/or cans" passing by a moving flow at production factories, …

  4. Choosing resistance in series with a photoresistor for best light ...

    Mar 31, 2016 · simulate this circuit – Schematic created using CircuitLab I have a photoresistor, R1, and as a voltage divider a fixed resistance, R2. There is a voltage of 5V …

  5. How fast is a photoresistor? - Electrical Engineering Stack Exchange

    Nov 8, 2020 · 5 As an addition to the other answers, typical CdS photoresistors have their maximum sensitivy at green light and nearly none for red and infrared. Also, their sensitive …

  6. photoresistor - Dark sensor with transistor - Electrical Engineering ...

    Jul 12, 2021 · Why do most of dark sensor circuits in the Internet look like this? It seems to me that in such circuit, photoresistor doesn't limit base current and it doesn't work. I think that …

  7. transistors - Tuning photoresistor circuit with resistors - Electrical ...

    Sep 11, 2023 · Tuning photoresistor circuit with resistors Ask Question Asked 2 years, 2 months ago Modified 2 years, 2 months ago

  8. How accurate is a photoresistor? - Electrical Engineering Stack …

    Oct 1, 2015 · How accurate is a photoresistor? Ask Question Asked 10 years, 2 months ago Modified 10 years, 2 months ago

  9. What colors or wavelengths are photoresistors sensitive to?

    Oct 15, 2020 · A photoresistor's sensitivity is a byproduct of the chemical used to create it. This one, a CdS cell, peaks around 545 nm wavelength, which means it is much more sensitive …

  10. Photoresistor Transistor Circuit - Electrical Engineering Stack …

    May 16, 2017 · I am teaching myself electronics. I designed this circuit to use a photoresistor to trigger a transistor when I hit the photoresistor with a laser pointer. On the Arduino side, I want …