linting cheerlights example and examples readme

micropython/examples/pico_explorer/README.md

@@ -1,44 +1,64 @@
 # Pico Explorer MicroPython Examples <!-- omit in toc -->
 
+- - [PicoGraphics](#picographics)
+- [Non-Wireless Examples](#non-wireless-examples)
+  - [Balls Demo](#balls-demo)
+  - [Button Test](#button-test)
+  - [Demo](#demo)
+  - [Noise](#noise)
+  - [Rainbow](#rainbow)
+  - [Thermometer](#thermometer)
+  - [Weather Station (BME280)](#weather-station-bme280)
+  - [Weather Station (BME68X)](#weather-station-bme68x)
+- [Wireless Examples](#wireless-examples)
+  - [Cheerlights](#cheerlights)
+
 ## PicoGraphics
 
 You can draw on Pico Explorer's display using our tiny PicoGraphics display library.
-
 - [PicoGraphics MicroPython function reference](../../modules/picographics)
 
 ## Non-Wireless Examples
 
 ### Balls Demo
+[balls_demo.py](balls_demo.py)
 
-Simple LCD demo showing 100 bouncy balls!
+LCD demo showing 100 bouncy balls!
 
 ### Button Test
+[button_test.py](button_test.py)
 
 This example shows you a simple, non-interrupt way of reading Pico Explorer's buttons with a loop that checks to see if buttons are pressed.
 
 ### Demo
+[demo.py](demo.py)
 
 A demo of all Pico Explorer's functions. Connect analog inputs like potentiometers up to ADC0-ADC3 and motors to the motor channels for best results. Connect AUDIO to GP0 with a jumper wire to hear noise.
 
 ### Noise
+[noise.py](noise.py)
 
 This example shows you how you can use Pico Explorer's onboard buzzer as a speaker to play different notes and string them together into a bleepy tune (you'll need to connect AUDIO to GP0 with a jumper wire to hear noise).
 
 ### Rainbow
+[rainbow.py](rainbow.py)
 
 This example borrows a CircuitPython hsv to rgb function to cycle through some rainbows on Pico Explorer's screen.
 
 ### Thermometer
+[thermometer.py](thermometer.py)
 
 This example takes the temperature from the Pico's onboard temperature sensor, and displays it on Pico Explorer, along with a little pixelly graph.
 
 ### Weather Station (BME280)
+[weatherstation_BME280.py](weatherstation_BME280.py)
 
-Plug a BME280 breakout into your Pico Explorer and make a little indoor weather station, with barometer style descriptions.
+Plug a [BME280 breakout](https://shop.pimoroni.com/products/bme280-breakout) into your Pico Explorer and make a little indoor weather station, with barometer style descriptions.
 
-### Weather Station (BME68x)
+### Weather Station (BME68X)
+[weatherstation_BME68X.py](weatherstation_BME68X.py)
 
-Plug a BME680 or BME688 breakout into your Pico Explorer to make a little indoor weather station, with barometer style descriptions.
+Plug a [BME680](https://shop.pimoroni.com/products/bme680-breakout) or [BME688](https://shop.pimoroni.com/products/bme688-breakout) breakout into your Pico Explorer to make a little indoor weather station, with barometer style descriptions.
 
 ## Wireless Examples
 
@@ -47,5 +67,7 @@ The wireless examples need `network_manager.py` and `WIFI_CONFIG.py` to be saved
 You'll also need to install the `micropython-urllib.urequest` library using Thonny's 'Tools' > 'Manage Packages'.
 
 ### Cheerlights
+[cheerlights.py](cheerlights.py)
+
+This Pico W example sets your Pico Explorer's screen (and optionally, a [RGB LED](https://shop.pimoroni.com/products/led-rgb-clear-common-cathode)) to the current #cheerlights colour.
 
-This Pico W example sets your Pico Explorer's screen to the current #cheerlights colour.

micropython/examples/pico_explorer/cheerlights.py

@@ -42,7 +42,7 @@ def status_handler(mode, status, ip):
 def hex_to_rgb(hex):
     # converts a hex colour code into RGB
     h = hex.lstrip('#')
-    r, g, b = (int(h[i:i+2], 16) for i in (0, 2, 4))
+    r, g, b = (int(h[i:i + 2], 16) for i in (0, 2, 4))
     return r, g, b
 
 
@@ -66,17 +66,17 @@ led = RGBLED(0, 1, 2, invert=False)
 while True:
     # connect to wifi
     uasyncio.get_event_loop().run_until_complete(network_manager.client(WIFI_CONFIG.SSID, WIFI_CONFIG.PSK))
-    
+
     # open the json file
     print(f"Requesting URL: {URL}")
     socket = urequest.urlopen(URL)
     data = ujson.load(socket)
     socket.close()
-    print(f"Data obtained!")
+    print("Data obtained!")
 
     # extract hex colour from the data
     hex = data['field2']
-    
+
     # and convert it to RGB
     r, g, b = hex_to_rgb(hex)
 
@@ -93,9 +93,8 @@ while True:
     # light up RGB LED
     led.set_rgb(r, g, b)
     print(f"RGB LED set to {hex}")
-    
+
     # sleep
     print(f"""Sleeping for {UPDATE_INTERVAL} seconds.
         """)
     time.sleep(UPDATE_INTERVAL)
-