""" This example will access an API, grab a number like hackaday skulls, github stars, price of bitcoin, twitter followers... if you can find something that spits out JSON data, we can display it! """ import gc import time import board import busio from digitalio import DigitalInOut from digitalio import Direction import neopixel import adafruit_espatcontrol.adafruit_espatcontrol_socket as socket from adafruit_espatcontrol import adafruit_espatcontrol from adafruit_ht16k33 import segments import adafruit_requests as requests # Get wifi details and more from a secrets.py file try: from secrets import secrets except ImportError: print("WiFi secrets are kept in secrets.py, please add them there!") raise # CONFIGURATION PLAY_SOUND_ON_CHANGE = False NEOPIXELS_ON_CHANGE = False TIME_BETWEEN_QUERY = 60 # in seconds # Some data sources and JSON locations to try out # Bitcoin value in USD DATA_SOURCE = "http://api.coindesk.com/v1/bpi/currentprice.json" DATA_LOCATION = ["bpi", "USD", "rate_float"] # Github stars! You can query 1ce a minute without an API key token # DATA_SOURCE = "https://api.github.com/repos/adafruit/circuitpython" # if 'github_token' in secrets: # DATA_SOURCE += "?access_token="+secrets['github_token'] # DATA_LOCATION = ["stargazers_count"] # Youtube stats # CHANNEL_ID = "UCpOlOeQjj7EsVnDh3zuCgsA" # this isn't a secret but you have to look it up # DATA_SOURCE = "https://www.googleapis.com/youtube/v3/channels/?part=statistics&id=" \ # + CHANNEL_ID +"&key="+secrets['youtube_token'] # try also 'viewCount' or 'videoCount # DATA_LOCATION = ["items", 0, "statistics", "subscriberCount"] # Subreddit subscribers # DATA_SOURCE = "https://www.reddit.com/r/circuitpython/about.json" # DATA_LOCATION = ["data", "subscribers"] # Hackaday Skulls (likes), requires an API key # DATA_SOURCE = "https://api.hackaday.io/v1/projects/1340?api_key="+secrets['hackaday_token'] # DATA_LOCATION = ["skulls"] # Twitter followers # DATA_SOURCE = "https://cdn.syndication.twimg.com/widgets/followbutton/info.json?" + \ # "screen_names=adafruit" # DATA_LOCATION = [0, "followers_count"] # With a Particle Argon RX = board.ESP_TX TX = board.ESP_RX resetpin = DigitalInOut(board.ESP_WIFI_EN) rtspin = DigitalInOut(board.ESP_CTS) uart = busio.UART(TX, RX, timeout=0.1) esp_boot = DigitalInOut(board.ESP_BOOT_MODE) esp_boot.direction = Direction.OUTPUT esp_boot.value = True # Create the connection to the co-processor and reset esp = adafruit_espatcontrol.ESP_ATcontrol( uart, 115200, run_baudrate=921600, reset_pin=resetpin, rts_pin=rtspin, debug=False ) esp.hard_reset() requests.set_socket(socket, esp) # Create the I2C interface. i2c = busio.I2C(board.SCL, board.SDA) # Attach a 7 segment display and display -'s so we know its not live yet display = segments.Seg7x4(i2c) display.print("----") # neopixels if NEOPIXELS_ON_CHANGE: pixels = neopixel.NeoPixel(board.A1, 16, brightness=0.4, pixel_order=(1, 0, 2, 3)) pixels.fill(0) # music! if PLAY_SOUND_ON_CHANGE: import audioio wave_file = open("coin.wav", "rb") wave = audioio.WaveFile(wave_file) # we'll save the value in question last_value = value = None the_time = None times = 0 def chime_light(): """Light up LEDs and play a tune""" if NEOPIXELS_ON_CHANGE: for i in range(0, 100, 10): pixels.fill((i, i, i)) if PLAY_SOUND_ON_CHANGE: with audioio.AudioOut(board.A0) as audio: audio.play(wave) while audio.playing: pass if NEOPIXELS_ON_CHANGE: for i in range(100, 0, -10): pixels.fill((i, i, i)) pixels.fill(0) while True: try: while not esp.is_connected: # secrets dictionary must contain 'ssid' and 'password' at a minimum esp.connect(secrets) the_time = esp.sntp_time # great, lets get the data print("Retrieving data source...", end="") r = requests.get(DATA_SOURCE) print("Reply is OK!") except (ValueError, RuntimeError, adafruit_espatcontrol.OKError) as e: print("Failed to get data, retrying

", e) continue # print('-'*40,) # print("Headers: ", r.headers) # print("Text:", r.text) # print('-'*40) value = r.json() for x in DATA_LOCATION: value = value[x] if not value: continue print(times, the_time, "value:", value) display.print(int(value)) if last_value != value: chime_light() # animate the neopixels last_value = value times += 1 # normally we wouldn't have to do this, but we get bad fragments r = value = None gc.collect() print(gc.mem_free()) # pylint: disable=no-member time.sleep(TIME_BETWEEN_QUERY)

""" This example will access an API, grab a number like hackaday skulls, github stars, price of bitcoin, twitter followers... if you can find something that spits out JSON data, we can display it! """ import gc import time import board import busio from digitalio import DigitalInOut from digitalio import Direction import neopixel import adafruit_espatcontrol.adafruit_espatcontrol_socket as socket from adafruit_espatcontrol import adafruit_espatcontrol from adafruit_ht16k33 import segments import adafruit_requests as requests # Get wifi details and more from a secrets.py file try: from secrets import secrets except ImportError: print("WiFi secrets are kept in secrets.py, please add them there!") raise # CONFIGURATION PLAY_SOUND_ON_CHANGE = False NEOPIXELS_ON_CHANGE = False TIME_BETWEEN_QUERY = 60 # in seconds # Some data sources and JSON locations to try out # Bitcoin value in USD DATA_SOURCE = "http://api.coindesk.com/v1/bpi/currentprice.json" DATA_LOCATION = ["bpi", "USD", "rate_float"] # Github stars! You can query 1ce a minute without an API key token # DATA_SOURCE = "https://api.github.com/repos/adafruit/circuitpython" # if 'github_token' in secrets: # DATA_SOURCE += "?access_token="+secrets['github_token'] # DATA_LOCATION = ["stargazers_count"] # Youtube stats # CHANNEL_ID = "UCpOlOeQjj7EsVnDh3zuCgsA" # this isn't a secret but you have to look it up # DATA_SOURCE = "https://www.googleapis.com/youtube/v3/channels/?part=statistics&id=" \ # + CHANNEL_ID +"&key="+secrets['youtube_token'] # try also 'viewCount' or 'videoCount # DATA_LOCATION = ["items", 0, "statistics", "subscriberCount"] # Subreddit subscribers # DATA_SOURCE = "https://www.reddit.com/r/circuitpython/about.json" # DATA_LOCATION = ["data", "subscribers"] # Hackaday Skulls (likes), requires an API key # DATA_SOURCE = "https://api.hackaday.io/v1/projects/1340?api_key="+secrets['hackaday_token'] # DATA_LOCATION = ["skulls"] # Twitter followers # DATA_SOURCE = "https://cdn.syndication.twimg.com/widgets/followbutton/info.json?" + \ # "screen_names=adafruit" # DATA_LOCATION = [0, "followers_count"] # With a Particle Argon RX = board.ESP_TX TX = board.ESP_RX resetpin = DigitalInOut(board.ESP_WIFI_EN) rtspin = DigitalInOut(board.ESP_CTS) uart = busio.UART(TX, RX, timeout=0.1) esp_boot = DigitalInOut(board.ESP_BOOT_MODE) esp_boot.direction = Direction.OUTPUT esp_boot.value = True # Create the connection to the co-processor and reset esp = adafruit_espatcontrol.ESP_ATcontrol( uart, 115200, run_baudrate=921600, reset_pin=resetpin, rts_pin=rtspin, debug=False ) esp.hard_reset() requests.set_socket(socket, esp) # Create the I2C interface. i2c = busio.I2C(board.SCL, board.SDA) # Attach a 7 segment display and display -'s so we know its not live yet display = segments.Seg7x4(i2c) display.print("----") # neopixels if NEOPIXELS_ON_CHANGE: pixels = neopixel.NeoPixel(board.A1, 16, brightness=0.4, pixel_order=(1, 0, 2, 3)) pixels.fill(0) # music! if PLAY_SOUND_ON_CHANGE: import audioio wave_file = open("coin.wav", "rb") wave = audioio.WaveFile(wave_file) # we'll save the value in question last_value = value = None the_time = None times = 0 def chime_light(): """Light up LEDs and play a tune""" if NEOPIXELS_ON_CHANGE: for i in range(0, 100, 10): pixels.fill((i, i, i)) if PLAY_SOUND_ON_CHANGE: with audioio.AudioOut(board.A0) as audio: audio.play(wave) while audio.playing: pass if NEOPIXELS_ON_CHANGE: for i in range(100, 0, -10): pixels.fill((i, i, i)) pixels.fill(0) while True: try: while not esp.is_connected: # secrets dictionary must contain 'ssid' and 'password' at a minimum esp.connect(secrets) the_time = esp.sntp_time # great, lets get the data print("Retrieving data source...", end="") r = requests.get(DATA_SOURCE) print("Reply is OK!") except (ValueError, RuntimeError, adafruit_espatcontrol.OKError) as e: print("Failed to get data, retrying

", e) continue # print('-'*40,) # print("Headers: ", r.headers) # print("Text:", r.text) # print('-'*40) value = r.json() for x in DATA_LOCATION: value = value[x] if not value: continue print(times, the_time, "value:", value) display.print(int(value)) if last_value != value: chime_light() # animate the neopixels last_value = value times += 1 # normally we wouldn't have to do this, but we get bad fragments r = value = None gc.collect() print(gc.mem_free()) # pylint: disable=no-member time.sleep(TIME_BETWEEN_QUERY)