Formatting bug

This commit is contained in:
Laura 2017-03-16 10:17:41 +00:00
parent f72cb685ef
commit 0428471f9d
3 changed files with 13 additions and 13 deletions

BIN
images/IMG_2406.JPG Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 1.4 MiB

Binary file not shown.

After

Width:  |  Height:  |  Size: 746 KiB

View file

@ -6,17 +6,17 @@ With the hardware set up, we can begin to program the software that will make ev
1. To begin, open the file explorer, then right click on a blank space inside the file explorer window.
![File Explorer](images/file-explorer.png)
![File Explorer](images/file-explorer.png)
1. Select `Create new` and then click `Folder`
![Create folder menu](images/create-folder.png)
![Create folder menu](images/create-folder.png)
1. Type in the name of the folder where you will store the code and the photographs. We chose to call ours `allseeingpi`. Make a note of the path to this folder which is displayed in the bar at the top, which should be `/home/pi/allseeingpi`
1. From the "Programming" menu, open up "Python 3"
![Open Python 3](images/python3-app-menu.png)
![Open Python 3](images/python3-app-menu.png)
1. Create a new Python file by clicking on `File` > `New File`.
@ -24,23 +24,23 @@ With the hardware set up, we can begin to program the software that will make ev
1. We will need the `gpiozero` library. At the start of your Python file add an import statement:
```python
from gpiozero import Button
```
```python
from gpiozero import Button
```
1. Next we will set up the buttons. On the [previous worksheet](worksheet.md) we wired our buttons to pins 23 and 25. Let's go ahead and set both buttons up.
```python
next_overlay_btn = Button(23)
take_pic_btn = Button(25)
```
```python
next_overlay_btn = Button(23)
take_pic_btn = Button(25)
```
1. Now we will use gpiozero to tell the buttons what to do when pressed. In the code below, `next_overlay` and `take_picture` are functions which will be called when the corresponding button is pressed:
```python
```python
next_overlay_btn.when_pressed = next_overlay
take_pic_btn.when_pressed = take_picture
```
```
1. We will write these two functions so that the buttons know what to do when they are pressed. Functions are usually written at the start of a program immediately after the `import` statements. Add the functions, but with some placeholder code to just print a message when they are pressed, so we can test them.
@ -50,7 +50,7 @@ With the hardware set up, we can begin to program the software that will make ev
def take_picture():
print("Take a picture")
```
```
1. Press `F5`, save and run your program. Try pressing each button and check that a different message pops up for each in the Python shell.