Your cart is empty.
Your cart is empty. Great Sensors for Project. Having Fun With Electronics and Programming!
Description:
The Light Intensity Sensor can be used for brightness and the ambient light intensity detection, which is widely used in intelligent car.
Compared with photo-resistor, photoresistor is better in directionality. It only detect light source in front of the sensor. It is better to use for light searching.
"AO" outputs analog voltage. "DO" outputs 0 and 1 digital signal.
When ambient light intensity does not reach the threshold value, the "DO" port output high lever; When the ambient light intensity exceeds a set threshold, the "DO" output low lever.
Digital outputs "DO" can be directly connected with the microcontroller.
Sensitivity is adjustable by adjusting the potentiometer.
PCB-mounted LEDs indicate the power (Red) and digital switch output (Green).
Wiring Instructions:
VCC ---- DC 3.3V-5V
GND ---- "-"
AO ---- Analog Output
DO ---- Digital Output
Specification:
Working Voltage: DC 3.3V-5V
Output Format : DO digital switching outputs (0 and 1) and AO analog voltage output
PCB Size: 31 x 14mm / 1.22" x 0.55" (L*W)
Fixed Hole Diameter: 3mm
Package Includes:
3 x Light Intensity Sensor
Tim
2025-08-01 13:49:57
This review for the uxcell Photosensitive Diode Sensor Light Detection Photodiode Module with Digital and Analog Outputs. I like it!Works well for my purposes using 3.3 V. There is indeed an analog output signal. Briefly checked it with my scope. It's actually more sensitive than I expected for a presumably unamplified diode. I just have a lil 1 MHz scope, but the response time seems to be at least in the microseconds neighborhood.The description said "3.3-5V." Beware: first I had tried 5V, and POP. Burning smell. Turn it off. I *think* one of the diodes on the board blew out? It was dead. Good thing there were 3 of them and I only need one. [Update on this below.]Also checked the digital output and that's fine too. The digital output pot works to adjust the threshold just fine, and there's a threshold LED on the board that lights when reached, as well as a power LED. Note the digital out can be noisy when it latches if the light doesn't come on very, very quickly, or is flickering on the threshold.I sensed ambient room light alright from both pins, though I actually got this to scope some LEDs which it very easily picked up.Pretty nice hobby kit! Might get another set. I'll check with the seller on the spec in case I just got one bad board, but... maybe stick to 3.3 V.If you need something very fast (nanoseconds) and very, very sensitive, you may need an amplified photodiode. Those run on the order of $100+ premade.For me, this is fast and sensitive enough for a bit of tinkering at home. Nice piece of kit![Update: The seller replied it's best to use a supply below 5V. I agree. To be fair, the way I had it set up, it's entirely possible there was a brief, unfiltered spike when I powered it on at 5V that popped the first one. Worked great at 3.3V in any case.]
N6AC
2025-06-27 12:56:55
We used one of the neat devices to view the burner window of our (gas) water heater.An LED and dropping resistor was connected to the sensor output, and all powered from a 5VDC wall wart.This added “burner is on†information to the suite of other sensors in the water heater closet, which are viewable on our local network (or internet, if needed).It works reliably, we are happy!
MonkeySue
2025-05-11 12:32:20
Overview: Three modules were ordered and 3 were received. All were functional. These are designed as a light detector/switch. The module outputs voltage during dark-to-low light conditions and is "off" during daylight. The transition is either on-to-off (digital pin) or gradual (analog pin). A photodiode detects the light and generates voltage. An OpAmp amplifies that voltage.Details:Packaging: The product was delivered in an anti-static wrapper, inside zip-locked plastic, inside (thin) cardboard.Quality: The solder connections and the board layout are good.Light-response: The digital pin triggered at 40-80 LUX: it was "on" below this threshold and "off" above. The cut-off was sharp. The analog pin seemed to transition at a different point (~120-200LUX; I did not carefully map this value). The response was a gradual, nearly linear, decrease in Vout in dark-to-light conditions, then a drop into the low millivolt range. I observed minimal difference in responsiveness across the three modules.Voltage range: the digital pin's "HIGH" was 4.7-4.8v and the analog pin's "HIGH" was 3.7-4.2v. Digital "LOW" was 0.14-0.16v and analog "LOW" was 0.05-0.1v.Current: total draw ranged 3-6mA.
djk123
2025-03-16 16:09:13
I read the reviews on this, and was especially interested about NOT feeding it 5V. Keeping that in mind, I did the following checks on the Analog output:- No power connected: - The diode is at high resistance in complete dark. - bright light, very low resistance- 3.3V connected, - almost 0V in bright light - 3V at very dark conditionsI was not interested in the digital output, but checked it anyway. I couldn't get it to respond to light or dark, no matter where the pot was set. That didn't bother me, as I'm really interested in the analog output to control the brightness of a digital clock display.This module save me a bit of work.
Donald M.
2024-12-05 09:28:04
This light sensor has a light sensing diode and not a light sensitive resister. It requires a very bright light before it can detect the light. It will not detect the light in a dimly lit room and it just barely detects the light in a bright room. It will detect sunlight well if it is placed directly in the sun. If I took it outdoors it probably could detect the light intensity there. It is mostly useless for detecting indoor light levels. It is equivalent to someone being legally blind. The description says nothing about requiring high light levels for this to work.
Recommended Products
$189.95
$ 93 .99 $93.99