Light Sensor Counter
Contains ads
3.9star
78 reviews
10K+
Downloads
Everyone
info
About this app
The light sensor in your device is continually monitored and when the detection level is crossed, the counter is increased by one.
Can be used to count each time a light source shines on the sensor. Or alternatively, shine a light on the sensor and count each time the light beam is broken.
• Illuminance values in lux (lumens per square meter) or foot-candles.
• Detect on rising or falling past the detection level.
• Reduce double counts with optional no-count wait after detection.
• Graph to show illuminance values.
• Counts indicated on graph and with optional 'click' sound.
Light sensors will vary in sampling speed, resolution and accuracy from one device to the next. For indication only.
Can be used to count each time a light source shines on the sensor. Or alternatively, shine a light on the sensor and count each time the light beam is broken.
• Illuminance values in lux (lumens per square meter) or foot-candles.
• Detect on rising or falling past the detection level.
• Reduce double counts with optional no-count wait after detection.
• Graph to show illuminance values.
• Counts indicated on graph and with optional 'click' sound.
Light sensors will vary in sampling speed, resolution and accuracy from one device to the next. For indication only.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
Ratings and reviews
3.8
76 reviews
Tim Foo
- Flag inappropriate
January 12, 2024
This app uses the front facing camera as light sensor no settings to change to the main (back) camera on the mobilephone. Response rate is not good could be an OS issue. Tested with a blinking red LED. Misses many (>50%) of the short (250ms ie ¼s) flashes at 50% duty cycle.
Dale Ross
- Flag inappropriate
February 9, 2022
I like the idea. Good start. But a few improvements would make it far more useful. 1. The purple border takes up valuable screen resource on small devices. Remove it and the inner border. This will expand room for the plot arena. 2. Sometimes one needs to trigger on both rise *and* fall. Please add this option. 3. It would be very useful to have a lower *and* upper (bilevel) trigger thresholds. A count is incremented when the signal crosses both thresholds. 4. Also allow use of the back camera.
2 people found this review helpful
A Google user
- Flag inappropriate
April 22, 2020
Very cool. It does appear to work well; unfortunately it seems my phone light sensor is not designed to react quickly to flashing LED signal. Works great for low frequency such as broken-beam detection or when ambient light level changes (you could put your phone in the fridge and count how many times the door opens and closes), just not working to detect fast strobe frequency. Nice app!
10 people found this review helpful
What's new
v1.03 Updated to use newer code libraries to target newer devices. Added Sensor High Sampling Rate Permission required for newer devices (Android 12 and above).
v1.04 Updated to use newer code methods to better target and run reliably on devices in 2024.
v1.04 Updated to use newer code methods to better target and run reliably on devices in 2024.
