the traffic lights was my inspiration so I decided to make traffic lights controlling it with bluetooth
Arduino IDE
bt terminal on pc
tools :
jumpers to connect the circuit
3 LED
arduino uno + usb cable
breadboard
220 ohm
voltage source 5 v
bluetooth module
now the circle is complete
coding
R yellow on
enter D the yellow off
l = red off
y = red on
G = green on
N = green off
by using IDE i write the code
after uploading the code I connected the circle
then i connected the circle with usb cable to my laptop
ALL LEDS ON
*because i push all buttons on the phone to light *
now trying the code
coding at first i didn't know what's the problem so i try the code more and more until i search and know that i should put the equility sign
codding on arduino IDE will help me alot in the final and will learn me how to disscover the problems
making this robot arm was the coolest thing
also making this traffic lights was interesting to me