Merge pull request #3 from jerryneedell/jerryn_examples

 add aio post and cheerlights examples

Author: ladyada

examples/esp32spi_aio_post.py

@@ -0,0 +1,68 @@
+
+import time
+import board
+import busio
+from digitalio import DigitalInOut
+
+from adafruit_esp32spi import adafruit_esp32spi
+import adafruit_esp32spi.adafruit_esp32spi_requests as requests
+
+
+print("ESP32 SPI webclient test")
+
+# Get wifi details and more from a settings.py file
+try:
+    from esp32spi_settings import settings
+except ImportError:
+    print("WiFi settings are kept in settings.py, please add them there!")
+    raise
+
+
+esp32_cs = DigitalInOut(board.D9)
+esp32_ready = DigitalInOut(board.D10)
+esp32_reset = DigitalInOut(board.D5)
+spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
+esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
+
+requests.set_interface(esp)
+
+if esp.status == adafruit_esp32spi.WL_IDLE_STATUS:
+    print("ESP32 found and in idle mode")
+print("Firmware vers.", esp.firmware_version)
+print("MAC addr:", [hex(i) for i in esp.MAC_address])
+for ap in esp.scan_networks():
+    print("\t%s\t\tRSSI: %d" % (str(ap['ssid'], 'utf-8'), ap['rssi']))
+while not esp.is_connected:
+    try:
+        print("Connecting to AP...")
+        esp.connect_AP(bytes(settings['ssid'],'utf-8'), bytes(settings['password'],'utf-8'))
+    except (ValueError, RuntimeError) as e:
+        print("Failed to connect, retrying\n", e)
+        continue
+print("Connected to", str(esp.ssid, 'utf-8'), "\tRSSI:", esp.rssi)
+print("My IP address is", esp.pretty_ip(esp.ip_address))
+
+
+counter = 0
+while True:
+    try:
+        while not esp.is_connected:
+            # settings dictionary must contain 'ssid' and 'password' at a minimum
+            esp.connect_AP(bytes(settings['ssid'],'utf-8'), bytes(settings['password'],'utf-8'))
+        # great, lets get the data
+        print("Posting data...", end='')
+        data=counter
+        feed='test'
+        payload={'value':data}
+        response=requests.post(
+            "https://io.adafruit.com/api/v2/"+settings['aio_username']+"/feeds/"+feed+"/data",
+            json=payload,headers={bytes("X-AIO-KEY","utf-8"):bytes(settings['aio_key'],"utf-8")})
+        print(response.json())
+        response.close()
+        counter = counter + 1
+        print("OK")
+    except (ValueError, RuntimeError) as e:
+        print("Failed to get data, retrying\n", e)
+        continue
+    response = None
+    time.sleep(15)

examples/esp32spi_cheerlights.py

@@ -0,0 +1,101 @@
+import time
+import board
+import busio
+from digitalio import DigitalInOut
+
+from adafruit_esp32spi import adafruit_esp32spi
+import adafruit_esp32spi.adafruit_esp32spi_requests as requests
+
+import neopixel
+import adafruit_fancyled.adafruit_fancyled as fancy
+
+
+
+# Get wifi details and more from a settings.py file
+try:
+    from esp32spi_settings import settings
+except ImportError:
+    print("WiFi settings are kept in settings.py, please add them there!")
+    raise
+
+
+
+print("ESP32 SPI webclient test")
+
+DATA_SOURCE = "https://api.thingspeak.com/channels/1417/feeds.json?results=1"
+DATA_LOCATION = ["feeds", 0, "field2"]
+
+
+esp32_cs = DigitalInOut(board.D9)
+esp32_ready = DigitalInOut(board.D10)
+esp32_reset = DigitalInOut(board.D5)
+spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
+esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
+
+requests.set_interface(esp)
+
+if esp.status == adafruit_esp32spi.WL_IDLE_STATUS:
+    print("ESP32 found and in idle mode")
+print("Firmware vers.", esp.firmware_version)
+print("MAC addr:", [hex(i) for i in esp.MAC_address])
+for ap in esp.scan_networks():
+    print("\t%s\t\tRSSI: %d" % (str(ap['ssid'], 'utf-8'), ap['rssi']))
+while not esp.is_connected:
+    try:
+        print("Connecting to AP...")
+        esp.connect_AP(bytes(settings['ssid'],'utf-8'), bytes(settings['password'],'utf-8'))
+    except (ValueError, RuntimeError) as e:
+        print("Failed to connect, retrying\n", e)
+        continue
+print("Connected to", str(esp.ssid, 'utf-8'), "\tRSSI:", esp.rssi)
+print("My IP address is", esp.pretty_ip(esp.ip_address))
+
+
+# neopixels
+pixels = neopixel.NeoPixel(board.A1, 16, brightness=0.3)
+pixels.fill(0)
+builtin = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.1)
+builtin[0] = 0
+
+# we'll save the value in question
+last_value = value = None
+the_time = None
+times = 0
+
+
+while True:
+    try:
+        while not esp.is_connected:
+            builtin[0] = (100, 0, 0)
+            # settings dictionary must contain 'ssid' and 'password' at a minimum
+            esp.connect_AP(bytes(settings['ssid'],'utf-8'), bytes(settings['password'],'utf-8'))
+        builtin[0] = (0, 100, 0)
+        print("Fetching json from", DATA_SOURCE)
+        builtin[0] = (100, 100, 0)
+        r = requests.get(DATA_SOURCE)
+        builtin[0] = (0, 0, 100)
+        print(r.json())
+        value=r.json()
+        for x in DATA_LOCATION:
+            value = value[x]
+            print(value)
+        r.close()
+    except (ValueError, RuntimeError) as e:
+        print("Failed to get data, retrying\n", e)
+        continue
+
+    builtin[0] = (100, 100, 100)
+    if not value:
+        continue
+    if last_value != value:
+        color = int(value[1:],16)
+        red = color >> 16 & 0xFF
+        green = color >> 8 & 0xFF
+        blue = color& 0xFF
+        gamma_corrected = fancy.gamma_adjust(fancy.CRGB(red, green, blue)).pack()
+
+        pixels.fill(gamma_corrected)
+        last_value = value
+    times += 1
+    r = None
+    time.sleep(60)

examples/esp32spi_settings.py

@@ -0,0 +1,10 @@
+# This file is where you keep secret settings, passwords, and tokens!
+# If you put them in the code you risk committing that info or sharing it
+
+settings = {
+    'ssid' : 'yourssid',
+    'password' : 'yourpassword',
+    'timezone' : -5, # this is offset from UTC
+    'aio_username' : 'youraiousername',
+    'aio_key' : 'youraiokey',
+}