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 …
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.
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 …
Using a pico and a photoresistor to measure light intensity
Nov 1, 2024 · 0 I've recently been trying to do an experiment requiring me to measure light intensity. I didn't have the necessary equipment, but I did have a photoresistor and a …
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
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, …
Using op-amps to read real-time resistance values over a wide range
Jul 29, 2019 · Question Now I need to measure the real-time resistance change of the photoresistor over a larger resistance range (1k to 100M). Is there a way to improve this …
Photo resistor is giving off an unsteady output, how can I fix that?
Apr 1, 2018 · Without the fixed resistor, the 5V going into the photoresistor has nowhere to go other than the analog input pin, so you'd read 5V regardless of the light level. The variable …
Reverse a Photoresistor - Electrical Engineering Stack Exchange
May 8, 2025 · You want that bird to start sounding in a brighter light. That is, make the system less sensitive to light. The simplest way would be to mask that LDR (Light Dependent …
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