Sunlight sensor (#57)

* Adding content

* Update en.json

* Update README.md

* Update TRANSLATIONS.md

* Adding lesson tempolates

* Fixing code files with each others code in

* Update README.md

* Migrating to sunlight sensor at the request of seeed

* More on sunlight sensor

Author: Jim Bennett

1-getting-started/lessons/1-introduction-to-iot/code/wio-terminal/nightlight/app.py

@@ -12,7 +12,7 @@ If you are using a Raspberry Pi as your IoT hardware, you have two choices - you
 
 Before you begin, you also need to connect the Grove Base Hat to your Pi.
 
-### Task
+### Task - setup
 
 Install the Grove base hat on your Pi and configure the Pi
 
@@ -29,7 +29,7 @@ Install the Grove base hat on your Pi and configure the Pi
 
 If you want to work directly on your Pi, you can use the desktop version of Raspberry Pi OS and install all the tools you need.
 
-#### Task
+#### Task - work directly on your Pi
 
 Set up your Pi for development.
 
@@ -79,7 +79,7 @@ Rather than coding directly on the Pi, it can run 'headless', that is not connec
 
 To code remotely, the Pi OS needs to be installed on an SD Card.
 
-##### Task
+##### Task - set up the Pi OS
 
 Set up the headless Pi OS.
 
@@ -115,7 +115,7 @@ The OS will be written to the SD card, and once compete the card will be ejected
 
 The next step is to remotely access the Pi. You can do this using `ssh`, which is available on macOS, Linux and recent versions of Windows.
 
-##### Task
+##### Task - connect to the Pi
 
 Remotely access the Pi.
 
@@ -147,7 +147,7 @@ Remotely access the Pi.
 
 Once you are connected to the Pi, you need to ensure the OS is up to date, and install various libraries and tools that interact with the Grove hardware.
 
-##### Task
+##### Task - configure software on the Pi
 
 Configure the installed Pi software and install the Grove libraries.
 
@@ -179,7 +179,7 @@ Configure the installed Pi software and install the Grove libraries.
 
 Once the Pi is configured, you can connect to it using Visual Studio Code (VS Code) from your computer - this is a free developer text editor you will be using to write your device code in Python.
 
-##### Task
+##### Task - configure VS Code for remote access
 
 Install the required software and connect remotely to your Pi.
 
@@ -199,7 +199,7 @@ The Hello World app for the Pi will ensure that you have Python and Visual Studi
 
 This app will be in a folder called `nightlight`, and it will be re-used with different code in later parts of this assignment to build the nightlight application.
 
-### Task
+### Task - hello world
 
 Create the Hello World app.
 

1-getting-started/lessons/1-introduction-to-iot/pi.md

@@ -120,7 +120,7 @@ Create a Python application to print `"Hello World"` to the console.
     code .
     ```
 
-    > 💁 If your terminal returns `command not found` on macOS it means VS Code has not been added to PATH, you can add VS Code to PATH by following the instructions in the [Launching from the command line section of the VS Code documentation](https://code.visualstudio.com/docs/setup/mac?WT.mc_id=academic-17441-jabenn#_launching-from-the-command-line) and run the command afterwards. VS Code is installed to PATH by default on Windows and Linux.
+    > 💁 If your terminal returns `command not found` on macOS it means VS Code has not been added to your PATH. You can add VS Code to yout PATH by following the instructions in the [Launching from the command line section of the VS Code documentation](https://code.visualstudio.com/docs/setup/mac?WT.mc_id=academic-17441-jabenn#_launching-from-the-command-line) and run the command afterwards. VS Code is installed to your PATH by default on Windows and Linux.
 
 1. When VS Code launches, it will activate the Python virtual environment. You will see this in the bottom status bar:
 

1-getting-started/lessons/1-introduction-to-iot/virtual-device.md

@@ -8,7 +8,7 @@ The [Wio Terminal from Seeed Studios](https://www.seeedstudio.com/Wio-Terminal-p
 
 To use your Wio Terminal, you will need to install some free software on your computer. You will also need to update the Wio Terminal firmware before you can connect it to WiFi.
 
-### Task
+### Task - setup
 
 Install the required software and update the firmware.
 
@@ -32,7 +32,7 @@ The Hello World app for the Wio Terminal will ensure that you have Visual Studio
 
 The first step is to create a new project using PlatformIO configured for the Wio Terminal.
 
-#### Task
+#### Task - create a PlatformIO project
 
 Create the PlatformIO project.
 
@@ -122,7 +122,7 @@ The VS Code explorer will show a number of files and folders created by the Plat
 
 You're now ready to write the Hello World app.
 
-#### Task
+#### Task - write the Hello World app
 
 Write the Hello World app.
 

1-getting-started/lessons/1-introduction-to-iot/wio-terminal.md

@@ -1,15 +1,15 @@
 import time
-from grove.grove_light_sensor_v1_2 import GroveLightSensor
+import seeed_si114x
 from grove.grove_led import GroveLed
 
-light_sensor = GroveLightSensor(0)
+light_sensor = seeed_si114x.grove_si114x()
 led = GroveLed(5)
 
 while True:
-    light = light_sensor.light
+    light = light_sensor.ReadVisible
     print('Light level:', light)
 
-    if light < 200:
+    if light < 300:
         led.on()
     else:
         led.off()

1-getting-started/lessons/3-sensors-and-actuators/code-actuator/pi/nightlight/app.py

@@ -12,7 +12,7 @@
     light = light_sensor.light
     print('Light level:', light)
 
-    if light < 200:
+    if light < 300:
         led.on()
     else:
         led.off()

1-getting-started/lessons/3-sensors-and-actuators/code-actuator/virtual-device/nightlight/app.py

@@ -12,7 +12,7 @@
     light = light_sensor.light
     print('Light level:', light)
 
-    if light < 200:
+    if light < 300:
         led.on()
     else:
         led.off()

1-getting-started/lessons/3-sensors-and-actuators/code-actuator/wio-terminal/nightlight/app.py

@@ -19,7 +19,7 @@ void loop()
     Serial.print("Light value: ");
     Serial.println(light);
 
-    if (light < 200)
+    if (light < 300)
     {
         digitalWrite(D0, HIGH);
     }

1-getting-started/lessons/3-sensors-and-actuators/code-actuator/wio-terminal/nightlight/src/main.cpp

@@ -1,10 +1,9 @@
 import time
-from grove.grove_light_sensor_v1_2 import GroveLightSensor
+import seeed_si114x
 
-light_sensor = GroveLightSensor(0)
+light_sensor = seeed_si114x.grove_si114x()
 
 while True:
-    light = light_sensor.light
+    light = light_sensor.ReadVisible
     print('Light level:', light)
-    
     time.sleep(1)

1-getting-started/lessons/3-sensors-and-actuators/code-sensor/pi/nightlight/app.py

@@ -12,7 +12,7 @@
     light = light_sensor.light
     print('Light level:', light)
 
-    if light < 200:
+    if light < 300:
         led.on()
     else:
         led.off()

1-getting-started/lessons/3-sensors-and-actuators/code-sensor/wio-terminal/nightlight/app.py

@@ -12,7 +12,7 @@ The nightlight logic in pseudo-code is:
 
 ```output
 Check the light level.
-If the light is less than 200
+If the light is less than 300
     Turn the LED on
 Otherwise
     Turn the LED off
@@ -22,7 +22,7 @@ Otherwise
 
 The Grove LED comes as a module with a selection of LEDs, allowing you to chose the color.
 
-#### Task
+#### Task - connect the LED
 
 Connect the LED.
 
@@ -44,9 +44,9 @@ Connect the LED.
 
 ## Program the nightlight
 
-The nightlight can now be programmed using the Grove light sensor and the Grove LED.
+The nightlight can now be programmed using the Grove sunlight sensor and the Grove LED.
 
-### Task
+### Task - program the nightlight
 
 Program the nightlight.
 
@@ -70,16 +70,18 @@ Program the nightlight.
 
     The line `led = GroveLed(5)` creates an instance of the `GroveLed` class connecting to pin **D5** - the digital Grove pin that the LED is connected to.
 
+    > 💁 All the sockets have unique pin numbers. Pins 0, 2, 4, and 6 are analog pins, pins 5, 16, 18, 22, 24, and 26 are digital pins.
+
 1. Add a check inside the `while` loop, and before the `time.sleep` to check the light levels and turn the LED on or off:
 
     ```python
-    if light < 200:
+    if light < 300:
         led.on()
     else:
         led.off()
     ```
 
-    This code checks the `light` value. If this is less than 200 it calls the `on` method of the `GroveLed` class which sends a digital value of 1 to the LED, turning it on. If the light value is greater than or equal to 200 it calls the `off` method, sending a digital value of 0 to the LED, turning it off.
+    This code checks the `light` value. If this is less than 300 it calls the `on` method of the `GroveLed` class which sends a digital value of 1 to the LED, turning it on. If the light value is greater than or equal to 300 it calls the `off` method, sending a digital value of 0 to the LED, turning it off.
 
     > 💁 This code should be indented to the same level as the `print('Light level:', light)` line to be inside the while loop!
 
@@ -103,7 +105,7 @@ Program the nightlight.
     Light level: 290
     ```
 
-1. Cover and uncover the light sensor. Notice how the LED will light up if the light level is 200 or less, and turn off when the light level is greater than 200.
+1. Cover and uncover the sunlight sensor. Notice how the LED will light up if the light level is 300 or less, and turn off when the light level is greater than 300.
 
     > 💁 If the LED doesn't turn on, make sure it is connected the right way round, and the spin button is set to full on.
 

1-getting-started/lessons/3-sensors-and-actuators/pi-actuator.md

@@ -4,70 +4,78 @@ In this part of the lesson, you will add a light sensor to your Raspberry Pi.
 
 ## Hardware
 
-The sensor for this lesson is a **light sensor** that uses a [photodiode](https://wikipedia.org/wiki/Photodiode) to convert light to an electrical signal. This is an analog sensor that sends an integer value from 0 to 1,023 indicating a relative amount of light that doesn't map to any standard unit of measurement such as [lux](https://wikipedia.org/wiki/Lux).
+The sensor for this lesson is a **sunlight sensor** that uses [photodiodes](https://wikipedia.org/wiki/Photodiode) to convert visible and infrared light to an electrical signal. This is an analog sensor that sends an integer value from 0 to 1,023 indicating a relative amount of light, but this can be used to calculate exact values in [lux](https://wikipedia.org/wiki/Lux) by taking data from the separate infrared and visible light sensors.
 
-The light sensor is an eternal Grove sensor and needs to be connected to the Grove Base hat on the Raspberry Pi.
+The sunlight sensor is an eternal Grove sensor and needs to be connected to the Grove Base hat on the Raspberry Pi.
 
-### Connect the light sensor
+### Connect the sunlight sensor
 
-The Grove light sensor that is used to detect the light levels needs to be connected to the Raspberry Pi.
+The Grove sunlight sensor that is used to detect the light levels needs to be connected to the Raspberry Pi.
 
-#### Task
+#### Task - connect the sunlight sensor
 
-Connect the light sensor
+Connect the sunlight sensor
 
-![A grove light sensor](../../../images/grove-light-sensor.png)
+![A grove sunlight sensor](../../../images/grove-sunlight-sensor.png)
 
-1. Insert one end of a Grove cable into the socket on the light sensor module. It will only go in one way round.
+1. Insert one end of a Grove cable into the socket on the sunlight sensor module. It will only go in one way round.
 
-1. With the Raspberry Pi powered off, connect the other end of the Grove cable to the analog socket marked **A0** on the Grove Base hat attached to the Pi. This socket is the second from the right, on the row of sockets next to the GPIO pins.
+1. With the Raspberry Pi powered off, connect the other end of the Grove cable to one of the three the I<sup>2</sup>C sockets marked **I2C** on the Grove Base hat attached to the Pi. This socket is the second from the right, on the row of sockets next to the GPIO pins.
 
-![The grove light sensor connected to socket A0](../../../images/pi-light-sensor.png)
+    > 💁 I<sup>2</sup>C is a way sensors and actuators can communicate with an IoT device. It will be covered in more detail in a later lesson.
 
-## Program the light sensor
+![The grove sunlight sensor connected to socket A0](../../../images/pi-sunlight-sensor.png)
 
-The device can now be programmed using the Grove light sensor.
+## Program the sunlight sensor
 
-### Task
+The device can now be programmed using the Grove sunlight sensor.
+
+### Task - program the sunlight sensor
 
 Program the device.
 
 1. Power up the Pi and wait for it to boot
 
 1. Open the nightlight project in VS Code that you created in the previous part of this assignment, either running directly on the Pi or connected using the Remote SSH extension.
 
+1. Run the following command to install a pip package for working with the sunlight sensor:
+
+    ```sh
+    pip3 install seeed-python-si114x
+    ```
+
+    Not all the libraries for the Grove Sensors are installed with the Grove install script you used in an earlier lesson. Some need additional packages.
+
 1. Open the `app.py` file and remove all code from it
 
 1. Add the following code to the `app.py` file to import some required libraries:
 
     ```python
     import time
-    from grove.grove_light_sensor_v1_2 import GroveLightSensor
+    import seeed_si114x
     ```
 
     The `import time` statement imports the `time` module that will be used later in this assignment.
 
-    The `from grove.grove_light_sensor_v1_2 import GroveLightSensor` statement imports the `GroveLightSensor` from the Grove Python libraries. This library has code to interact with a Grove light sensor, and was installed globally during the Pi setup.
+    The `import seeed_si114x` statement imports the `seeed_si114x` module that has code to interact with the Grove sunlight sensor.
 
 1. Add the following code after the code above to create an instance of the class that manages the light sensor:
 
     ```python
-    light_sensor = GroveLightSensor(0)
+    light_sensor = seeed_si114x.grove_si114x()
     ```
 
-    The line `light_sensor = GroveLightSensor(0)` creates an instance of the `GroveLightSensor` class connecting to pin **A0** - the analog Grove pin that the light sensor is connected to.
-
-    > 💁 All the sockets have unique pin numbers. Pins 0, 2, 4, and 6 are analog pins, pins 5, 16, 18, 22, 24, and 26 are digital pins.
+    The line `light_sensor = seeed_si114x.grove_si114x()` creates an instance of the `grove_si114x` sunlight sensor class.
 
 1. Add an infinite loop after the code above to poll the light sensor value and print it to the console:
 
     ```python
     while True:
-        light = light_sensor.light
+        light = light_sensor.ReadVisible
         print('Light level:', light)
     ```
 
-    This will read the current light level on a scale of 0-1,023 using the `light` property of the `GroveLightSensor` class. This property reads the analog value from the pin. This value is then printed to the console.
+    This will read the current sunlight level on a scale of 0-1,023 using the `ReadVisible` property of the `grove_si114x` class. This value is then printed to the console.
 
 1. Add a small sleep of one second at the end of the `loop` as the light levels don't need to be checked continuously. A sleep reduces the power consumption of the device.
 
@@ -81,16 +89,16 @@ Program the device.
     python3 app.py
     ```
 
-    You should see light values being output to the console. Cover and uncover the light sensor to see the values change:
+    You should see sunlight values being output to the console. Cover and uncover the sunlight sensor to see the values change:
 
     ```output
     pi@raspberrypi:~/nightlight $ python3 app.py 
-    Light level: 634
-    Light level: 634
-    Light level: 634
-    Light level: 230
-    Light level: 104
-    Light level: 290
+    Light level: 259
+    Light level: 265
+    Light level: 265
+    Light level: 584
+    Light level: 550
+    Light level: 497
     ```
 
 > 💁 You can find this code in the [code-sensor/pi](code-sensor/pi) folder.