Added cheerlights example and closed request

examples/tiny_fx_w/README.md

@@ -6,6 +6,7 @@ For examples that show off the rest of the board's functions, refer to the regul
 
 - [Wireless Examples](#wireless-examples)
   - [Random](#random)
+  - [CheerLights](#cheerlights)
 
 
 ## Wireless Examples
@@ -19,4 +20,8 @@ Show the state of TinyFX's Boot button on its RGB output.
 Show random colours and patterns obtained from the internet on TinyFX's outputs.
 
 
+### CheerLights
+[wireless/cheerlights.py](examples/wireless/cheerlights.py)
 
+Obtain the current CheerLights colour from the internet and show it on TinyFX's RGB output.
+For more information about CheerLights, visit: [https://cheerlights.com/](https://cheerlights.com/)

examples/tiny_fx_w/examples/wireless/cheerlights.py

@@ -0,0 +1,68 @@
+import time
+import network
+import requests
+from tiny_fx import TinyFX
+
+"""
+Obtain the current CheerLights colour from the internet and show it on TinyFX's RGB output.
+For more information about CheerLights, visit: https://cheerlights.com/
+
+This example requires a secrets.py file to be on your board's file system with the credentials of your WiFi network.
+
+Press "Boot" to exit the program.
+"""
+
+try:
+    from secrets import WIFI_SSID, WIFI_PASSWORD
+except ImportError:
+    print("Create secrets.py with your WiFi credentials")
+    raise
+
+
+# Constants
+COLOUR_NAMES = ("R", "G", "B")
+CONNECTION_INTERVAL = 1.0               # The time to sleep between each connection check
+REQUEST_INTERVAL = 5.0                  # The time to sleep between each internet request
+
+# Variables
+tiny = TinyFX()                         # Create a new TinyFX object to interact with the board
+wlan = network.WLAN(network.STA_IF)     # Create a new network object for interacting with WiFI
+
+
+# Wrap the code in a try block, to catch any exceptions (including KeyboardInterrupt)
+try:
+    # Connect to WLAN
+    wlan.active(True)
+    wlan.connect(WIFI_SSID, WIFI_PASSWORD)
+
+    # Wait until the connection is established
+    while not wlan.isconnected():
+        print('Waiting for connection...')
+        time.sleep(CONNECTION_INTERVAL)
+
+    # Print out our IP address
+    print(f'Connected on {wlan.ifconfig()[0]}')
+
+    # Loop forever
+    while True:
+        # Get the current CheerLights colour from the internet
+        req = requests.get("http://api.thingspeak.com/channels/1417/field/2/last.json")
+        json = req.json()
+        req.close()
+
+        # Use the second to get the colour components for the RGB output
+        colour = tuple(int(json['field2'][i:i + 2], 16) for i in (1, 3, 5))
+
+        # Set the colour output, and print the values
+        tiny.rgb.set_rgb(*colour)
+        for i in range(len(colour)):
+            print(f"{COLOUR_NAMES[i]} = {colour[i]}", end=", ")
+
+        print()
+
+        time.sleep(REQUEST_INTERVAL)
+
+# Turn off all the outputs
+finally:
+    tiny.shutdown()
+    wlan.disconnect()

examples/tiny_fx_w/examples/wireless/random.py

@@ -46,13 +46,15 @@
     # Loop forever
     while True:
         # Get two colours from the internet
-        req = requests.get("https://random-flat-colors.vercel.app/api/random?count=2").json()
+        req = requests.get("https://random-flat-colors.vercel.app/api/random?count=2")
+        json = req.json()
+        req.close()
 
         # Use the first to get brightness values for the six mono outputs
-        mono = tuple(int(req['colors'][0][i:i + 1], 16) / 15 for i in range(1, 7))
+        mono = tuple(int(json['colors'][0][i:i + 1], 16) / 15 for i in range(1, 7))
 
         # Use the second to get the colour components for the RGB output
-        colour = tuple(int(req['colors'][1][i:i + 2], 16) for i in (1, 3, 5))
+        colour = tuple(int(json['colors'][1][i:i + 2], 16) for i in (1, 3, 5))
 
         # Set the mono outputs, and print the values
         for i in range(len(tiny.outputs)):