leds

Introductory Python programs for controlling LEDs using a Raspberry Pi (for my workshop)

Build this circuit first

Resistor: use a 100 - 220 Ohm resistor. Different kits have different resistors. Resistor colour codes
Connections to the T-Cobbler (it's really hard to read the numbers unless you click on the image):
the black wires go to GND.
the yellow wire for from the Red LED resistor goes to #25
the blue wire for from the Green LED resistor goes to #20
the red wire from the switch is connected to #6

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With this circuit you can run all of the programs in this repository.
To copy all of these programs, type

git clone https://github.com/salamander2/leds

This will make a folder called "leds" in your current dicrectory and put the programs in it.

Type cd leds to change directory to "leds".
Type ls -l to see a listing of the programs.
The programs get more complex and refined from #1 to #5.
Example: python light2.py to run program 2.
NOTE: previous versions of Raspbian required sudo python light2.py

===== You can also run the the "Pulse2.py" program which will pulse the two LEDS using PWM mode.

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Add the 3 colour LED

Connections:
the long leg of the LED goes to GND.
the three resistors connect to the short legs of the 3 colour LED.
they also connect to GPIO pins #13, #19, #26

Now you can run the TriColour program "Tricolour.py". Press 'r', 'g', and 'b' keys to increase the red, green, and blue. Use capital R G B to decrease the amounts.

Bigger and Better Things ...

For the repository that contains everything, please go to the one called "RaspberryPi" https://github.com/salamander2/RaspberryPi