stonx

Author: ladyada

CircuitStonks/code.py

@@ -0,0 +1,82 @@
+import time
+import board
+import busio
+from digitalio import DigitalInOut
+from adafruit_esp32spi import adafruit_esp32spi
+from adafruit_esp32spi import adafruit_esp32spi_wifimanager
+from adafruit_featherwing import minitft_featherwing
+import terminalio
+from adafruit_display_text import label
+import displayio
+
+minitft = minitft_featherwing.MiniTFTFeatherWing()
+
+# 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
+
+# If you are using a board with pre-defined ESP32 Pins:
+esp32_cs = DigitalInOut(board.D13)
+esp32_ready = DigitalInOut(board.D11)
+esp32_reset = DigitalInOut(board.D12)
+spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
+esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
+wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets)
+
+# Symbol "INX" for S&P500, "DJIA" for Dow
+DATA_SOURCE = "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&apikey="
+DATA_SOURCE += secrets['alphavantage_key']
+symbols = ["DJIA", "INX", "AAPL", "TSLA", "MSFT"]
+
+# Set text, font, and color
+group = displayio.Group()
+symbol_text = label.Label(terminalio.FONT, text="WiFi", color=0xFFFFFF,
+                          scale=3, max_glyphs=10)
+symbol_text.anchor_point = (0.0, 0.0)
+symbol_text.anchored_position = (0, 10)
+
+price_text = label.Label(terminalio.FONT, text="Connect...", color=0xFFFF00,
+                         scale=3, max_glyphs=10)
+price_text.anchor_point = (0, 1)
+price_text.anchored_position = (0, 75)
+
+change_text = label.Label(terminalio.FONT, text="", color=0xFFFF00,
+                          scale=2, max_glyphs=10)
+change_text.anchor_point = (0, 0)
+change_text.anchored_position = (80, 10)
+
+group.append(symbol_text)
+group.append(price_text)
+group.append(change_text)
+minitft.display.show(group)
+
+refresh = None
+i = 0
+while True:
+    # only query the api every 10 sec (and on first run)
+    if (not refresh) or ((time.monotonic() - refresh) > 10):
+        try:
+            symbol = symbols[i]
+            i = (i + 1) % len(symbols)  # go to the next symbol
+            response = wifi.get(DATA_SOURCE+"&symbol="+symbol).json()
+            print("Response is", response)
+            symbol_text.text = response['Global Quote']['01. symbol']
+            spot = round(float(response['Global Quote']['05. price']))
+            price_text.text = '${:,d}'.format(spot)
+            change = float(response['Global Quote']['09. change'])
+            print("Price is $", spot, "Change: $", change)
+            if change >= 0:
+                change_text.text = '+${:,d}'.format(round(change))
+                change_text.color = 0x00FF00
+            else:
+                change_text.text = '-${:,d}'.format(abs(round(change)))
+                change_text.color = 0xFF0000
+            refresh = time.monotonic()
+        except RuntimeError as e:
+            print("Some error occured, retrying! -", e)
+            time.sleep(5)
+            continue
+    time.sleep(5)

CircuitStonks/secrets.py

@@ -0,0 +1,7 @@
+
+secrets = {
+    'ssid' : 'myssid',
+    'password' : 'mypassword',
+    'timezone' : "America/New_York", # http://worldtimeapi.org/timezones
+    'alphavantage_key' : 'GRABAFREEKEYONLINE'
+    }