Arduino Uno R4 WiFi LESSON 34: Controlling Servo with Photo Resistor

Pick your Sunfounder kit up so you get the same results I do:

You can pick up the neat jumper wires I showed in the video here:

You guys can help me out over at Patreon, and that will help me keep my gear updated, and help me keep this quality content coming:

In this video I show you how to use the servo to display the relative brightness read from the photoresistor. Enjoy!

#arduinor4wifi
#photoresistor
#tutorial

[robertschuldenfrei]

I had no problem with the homework, but I could have been more creative with the graphics.

[johanverheyden]

I lost the lifechat, but 1 question yet: hoe can we read the light and transmit it over wifi to the servomotor, ?

[robertschuldenfrei]

This is a “heads up” comment. On Friday, September 13, 2024 I was writing code to review arrays for the next lesson. There was a notice about new library updates which I first ignored, but then later accepted the update. The next time I compiled a program the interface stated that it could find no device on COM5. I did not panic, but went to the library and found one of the items needed to be installed. After I did this COM5 was fine.

[volodymyryakovliv]

Thank you Paul, you are a great teacher!

[larryplatzek]

This should be VERY interesting and useful to KNOW!! Thank you for all of your time and method of teaching! These LIVE STEAMS CAN BE VERY HELPFUL.

[ruellerz]

I am legend. I appreciate your math but int servoAngle = map(lightVal, 0, 1023, 0, 180);