kopia lustrzana https://github.com/pimoroni/pimoroni-pico
Linter issues.
Simon Prickett
rodzic
14eabf360f
commit
658025a99b
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@ -1,9 +1,9 @@
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'''
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carbon_intensity.py
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This example is for the Pico W with GFX Pack.
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Displays near realtime information about the different types of electricity
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generation for a given UK postcode area. Uses the backlight and a bar graph
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to show the current mix of generation sources, and updates itself periodically
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Displays near realtime information about the different types of electricity
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generation for a given UK postcode area. Uses the backlight and a bar graph
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to show the current mix of generation sources, and updates itself periodically
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or when button E is pressed.
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Find out more about the Carbon Intensity API here:
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https://carbon-intensity.github.io/api-definitions/#carbon-intensity-api-v2-0-0
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@ -13,7 +13,6 @@ from gfx_pack import GfxPack, SWITCH_E
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from network_manager import NetworkManager
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import WIFI_CONFIG
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import json
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import time
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import uasyncio
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import urequests
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@ -24,17 +23,19 @@ display = gp.display
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# Replace S9 below with the first part of your postcode e.g. OX1, NG7, LS12
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CARBON_INTENSITY_URL = "https://api.carbonintensity.org.uk/regional/postcode/S9"
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# Time in seconds between automatic updates...
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CARBON_INTENSITY_UPDATE_FREQUENCY = 60
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CARBON_INTENSITY_UPDATE_FREQUENCY = 60
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DISPLAY_WIDTH, DISPLAY_HEIGHT = display.get_bounds()
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sys_status = "STATUS"
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# Utility function to clear the screen.
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def clear_screen():
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display.set_pen(0)
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display.clear()
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display.set_pen(15)
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# Utility function to clear a rectangular area of the screen.
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# Used to update the progress bar.
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def clear_rect(start_x, start_y, end_x, end_y, height):
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@ -42,11 +43,13 @@ def clear_rect(start_x, start_y, end_x, end_y, height):
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display.line(start_x, start_y, end_x, end_y, height)
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display.set_pen(15)
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display.update()
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# Utility function to set the backlight to a given rgbw colour.
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def set_backlight(r, g, b, w):
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gp.set_backlight(r, g, b, w)
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# Utility function to display text centred on the screen.
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def display_centered(text_to_display, y_pos, scale):
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width = display.measure_text(text_to_display, scale)
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@ -54,33 +57,34 @@ def display_centered(text_to_display, y_pos, scale):
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display.text(text_to_display, x_pos, y_pos, DISPLAY_WIDTH, scale)
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return x_pos
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# Read values from the API and update the display.
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def refresh_intensity_display():
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BAR_MIN_X = 50
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BAR_MAX_X = 120
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BAR_HEIGHT = 4
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clear_screen()
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set_backlight(0, 0, 0, 80)
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display_centered("UPDATING...", 25, 2)
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display.update()
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response_doc = urequests.get(CARBON_INTENSITY_URL).json()
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# Get the region name
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region_name = response_doc["data"][0]["shortname"]
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# Get the intensity index (very low, low, moderate, high, very high)
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intensity_index = response_doc["data"][0]["data"][0]["intensity"]["index"]
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# Pick out values from the generation mix data...
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# We want solar, wind, gas, nuclear, then other is 100% minus the total of those.
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solar_pct = 0
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wind_pct = 0
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nuclear_pct = 0
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gas_pct = 0
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for g in response_doc["data"][0]["data"][0]["generationmix"]:
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if g["fuel"] == "solar":
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solar_pct = g["perc"]
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@ -90,10 +94,10 @@ def refresh_intensity_display():
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gas_pct = g["perc"]
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elif g["fuel"] == "nuclear":
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nuclear_pct = g["perc"]
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# Forms of generation that are not solar, wind, gas, nuclear...
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others_pct = 100 - solar_pct - wind_pct - nuclear_pct - gas_pct
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# Figure out the bar lengths.
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one_percent_length = (BAR_MAX_X - BAR_MIN_X) / 100
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solar_width = round(one_percent_length * solar_pct)
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@ -101,7 +105,7 @@ def refresh_intensity_display():
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nuclear_width = round(one_percent_length * nuclear_pct)
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gas_width = round(one_percent_length * gas_pct)
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others_width = round(one_percent_length * others_pct)
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# Sort so that the longest bar is first.
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sorted_generators = sorted([
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(solar_width, "SOLAR"),
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@ -109,8 +113,8 @@ def refresh_intensity_display():
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(nuclear_width, "NUCLEAR"),
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(gas_width, "GAS"),
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(others_width, "OTHERS")
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], reverse = True)
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], reverse=True)
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clear_screen()
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# Set backlight according to carbon intensity...
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@ -132,10 +136,11 @@ def refresh_intensity_display():
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display.text(g[1], 5, v_pos, DISPLAY_WIDTH, 1)
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display.line(BAR_MIN_X, v_pos + 3, BAR_MIN_X + g[0], v_pos + 3, BAR_HEIGHT)
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v_pos += 10
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display.text("E: Update", 80, 50, DISPLAY_WIDTH, 1)
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display.text("E: Update", 80, 50, DISPLAY_WIDTH, 1)
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display.update()
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# Utility function used when connecting to wifi.
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def display_status():
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global sys_status
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@ -145,6 +150,7 @@ def display_status():
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display.text(sys_status, 0, 0, DISPLAY_WIDTH, 1)
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display.update()
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# Utility function used when connecting to wifi.
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def status_handler(mode, status, ip):
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global sys_status
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@ -159,12 +165,13 @@ def status_handler(mode, status, ip):
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else:
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print('Wifi connection failed!')
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try:
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# Attempt to connect to the wifi.
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network_manager = NetworkManager(WIFI_CONFIG.COUNTRY, status_handler=status_handler)
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uasyncio.get_event_loop().run_until_complete(network_manager.client(WIFI_CONFIG.SSID, WIFI_CONFIG.PSK))
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# Update the display, then count down to the next update drawing a
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# Update the display, then count down to the next update drawing a
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# countdown bar periodically. Update immediately if button E pressed.
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refresh_intensity_display()
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@ -175,25 +182,25 @@ try:
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while True:
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time.sleep(0.01)
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if gp.switch_pressed(SWITCH_E):
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# Update immediately.
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refresh_intensity_display()
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last_updated = time.ticks_ms()
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bar_width = DISPLAY_WIDTH
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ticks_now = time.ticks_ms()
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if time.ticks_diff(ticks_now, ticks_before) > BAR_UPDATE_FREQUENCY:
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bar_width = bar_width - (DISPLAY_WIDTH // CARBON_INTENSITY_UPDATE_FREQUENCY)
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ticks_before = time.ticks_ms()
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if time.ticks_diff(ticks_now, last_updated) > CARBON_INTENSITY_UPDATE_FREQUENCY * 1000:
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# It is time for a scheduled update.
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refresh_intensity_display()
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last_updated = time.ticks_ms()
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bar_width = DISPLAY_WIDTH
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# Update the countdown to next update bar at the bottom
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# of the screen.
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clear_rect(0, 61, DISPLAY_WIDTH, 61, 2)
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@ -202,5 +209,4 @@ try:
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except Exception as e:
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# Failed to connect to wifi - check credentials in WIFI_CONFIG.py
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print(f'Wifi connection failed! {e}')
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print(f'Wifi connection failed! {e}')
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