The lm393 is a simple photo resistor light sensor that has both analog and digital outputs.
Flying fish light sensor.
Today we take a look at the light sensor from the flying fish series from mh.
Pin control indicator description.
I add that the angle subtued by the fish at any distance will be so small that the reflected light from it will be minute compared to the background clutter and the ambient light.
Here a conventional ldr photoresistor is applied to a breakout board and equipped with comfort functions.
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In this video you will learn how to turn ac bulb on at night and turn it off during the day.
If you are interested in reading the digital output please refer to the pulse.
The digital output has a trim potentiometer that can be used to set a trigger light level.
3 3 to 5 vdc supply input.
Two types of code is provided so you can either use digital outp.
They come in a range of configuration ldr ntc thermistor resistive water moisture detectors and more.
Hope this is useful to somebody.
They are all based on the comparator ic lm393.
In the following example we will use the analog output to measure light level.
It is mainly about the brightness of ambient light sometimes also about invisible infrared light from cheap to expensive.
It ain t gonna work unless you dangle the fish a few inches in front of the ir stuff with your hand.
I try to use the rain sensor to detect some dripping water in a drainage system of my house.
You can buy this mh series of cheap sensors often called flying fish in the arduino world.
It s a light detection sensor which i connected to the arduino nano to test its functionality.
It servs the amount of light from 0 very bright to 1024 very dark using the analog pin.
Illuminates when power is applied.
There are various similar models on e bay aliexpress and other places all vary slightly.
Output that goes low when obstacle is in range.
Please try again later.
5v light detector analog digital flying fish mh sensor series took me a while to find the purpose of this little device i had in the mail recently.