diff --git a/0_Introduction/setup.md b/0_Introduction/setup.md
index e6a8d39..a4e3b90 100644
--- a/0_Introduction/setup.md
+++ b/0_Introduction/setup.md
@@ -2,7 +2,7 @@
### Dev Envitonment
-Nobara 39 on a hand-me-down dual core dell laptop. An RPi Pico, programming over usb cable. Some wires, buttons, LEDs and resistors I Borrowed from lab.
+Nobara/Fedora 39 on a hand-me-down dual core dell laptop. An RPi Pico, programming over usb cable. Some wires, buttons, LEDs and resistors I Borrowed from lab.
### Code Editor
Instead of using Arduino IDE, I use Visual Studio Code for programming. I use it because I (seem to) write code more efficiently and because I have it customized it to my liking.
@@ -15,7 +15,7 @@ Extensions I use:
### Project Generation
-A C Pico project requires additional files to handle compilation: CMakeList.txt and pico_sdk_import.cmake, templates of both available in the installed pico sdk. To automate this, I use [Pico Project Generator](https://github.com/raspberrypi/pico-project-generator).
+A C Pico project requires additional files to handle compilation: CMakeList.txt and pico_sdk_import.cmake, templates of both available in the installed pico sdk. To automate this, I am using [Pico Project Generator](https://github.com/raspberrypi/pico-project-generator) to generate the boilerplate code for the project. Most of the options are left default. The only changes are: `Console over USB` and `Create VSCode Project` are enabled.
@@ -40,7 +40,6 @@ So uploading the code requires following steps:
This will mount the pico as a storage device, to where the generated `.UF2` file should be copied.
-
## Hardware Setup
I have the RaspberryPi Pico Non-W variant: without the wireless chip. Soldered male jumper headers and mounted it onto a large breadboard. I am using solid copper wires for connections, because they stay in set shape.
diff --git a/1_Basic_GPIO/blinky.md b/1_Basic_GPIO/blinky.md
new file mode 100644
index 0000000..4c29481
--- /dev/null
+++ b/1_Basic_GPIO/blinky.md
@@ -0,0 +1,50 @@
+## Blinky
+
+The classic, the helloWorld of embedded programming. This program turns the LED on and off periodically.
+
+### Initial steps:
+- Create new project with project generator.
+- Open the project folder in VSCode.
+- Build the project by pressing the `build` button at the bottom and select the option with `arm-none-eabi`.
+- Make sure the build exits with code 0.
+
+
+
+### Basic Code:
+
+``` C
+int main()
+{
+ stdio_init_all();
+
+ const uint OnBoardLED = PICO_DEFAULT_LED_PIN;
+ gpio_init(OnBoardLED);
+ gpio_set_dir(OnBoardLED, GPIO_OUT);
+ while (true){
+ gpio_put(OnBoardLED, true);
+ sleep_ms(500);
+ gpio_put(OnBoardLED, false);
+ sleep_ms(500);
+ }
+}
+```
+
+#### Explanation:
+`stdio_init_all()`: initialize stuff
+
+`OnBoardLED = PICO_DEFAULT_LED_PIN`: Get the GPIO number of onboard LED. Remember this is GPIO Number, NOT PIN NUMBER.
+
+`gpio_init(OnBoardLED)`: Initialize that GPIO pin.
+
+`gpio_set_dir(OnBoardLED, GPIO_OUT)`: Set GPIO direction (`GPIO_OUT` for writing and `GPIO_IN` for reading).
+
+`while (true){}`: Super loop of the program
+
+`gpio_put(OnBoardLED, true)`: Set `OnBoardLED` pin to `on` (`true` to turn on/set to high/voltage to VDD, `false` to turn off/set to low/voltage to GND)
+
+Pico login HIGH voltage is 3.3v and LOW voltage is 0v.
+
+`sleep_ms(500)`: sleep for 500ms.
+
+---
+
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