Example of communicating to Home Assistant via a d1-mini esphome device.

Author: martinwoodward

additional/bulb-off.png

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+# Example that connects to an esphome coprocessor
+# The D1 Mini is connected over the stemma port
+
+import badger2040
+import time
+import pngdec
+from machine import Pin
+
+BUTTON_A = "buttonA"
+BUTTON_B = "buttonB"
+state = {BUTTON_A: 0, BUTTON_B: 0}
+
+display = badger2040.Badger2040()
+display.led(128)
+display.clear()
+
+display.set_update_speed(badger2040.UPDATE_FAST)
+png = pngdec.PNG(display.display)
+
+changed = True
+
+def wait_for_user_to_release_buttons():
+    while display.pressed_any():
+        time.sleep(0.01)
+
+def draw_badge():
+    display.clear()
+    
+    if state[BUTTON_A] == 1:
+        BADGE_IMAGE = "bulb-on.png"
+    else:
+        BADGE_IMAGE = "bulb-off.png"
+    
+    try:
+        png.open_file(BADGE_IMAGE)
+        png.decode(0, 0)
+    except OSError:
+        print("Badge background error")
+    
+    display.update()
+    
+        
+# Update the pins on the switch
+def update_pins(a, b):
+  wait_for_user_to_release_buttons()
+    
+  buttonA = Pin(4, Pin.OUT)
+  buttonB = Pin(5, Pin.OUT)
+
+  buttonA.value(a)
+  buttonB.value(b)
+  
+
+# Main loop
+# Note this implementation is super power innefficient
+# as it's for on-stage use.
+
+while True:
+    display.keepalive()
+
+    if display.pressed(badger2040.BUTTON_A):
+        if state[BUTTON_A] == 1:
+            state[BUTTON_A] = 0
+        else:
+            state[BUTTON_A] = 1
+        changed = True
+
+    if display.pressed(badger2040.BUTTON_B):
+        if state[BUTTON_B] == 1:
+            state[BUTTON_B] = 0
+        else:
+            state[BUTTON_B] = 1
+        changed = True
+
+    if changed:
+        update_pins(state[BUTTON_A],state[BUTTON_B])
+        draw_badge()
+        changed = False
+

additional/bulb-on.png

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+substitutions:
+  name: esphome-web-8e7525-CHANGEME
+  friendly_name: Badger
+
+esphome:
+  name: ${name}
+  friendly_name: ${friendly_name}
+  min_version: 2024.6.0
+  name_add_mac_suffix: false
+  project:
+    name: esphome.web
+    version: dev
+
+esp8266:
+  board: d1_mini_lite
+
+# Enable logging
+logger:
+
+# Enable Home Assistant API
+api:
+
+# Allow Over-The-Air updates
+ota:
+- platform: esphome
+
+# Allow provisioning Wi-Fi via serial
+improv_serial:
+
+wifi:
+  # Set up a wifi access point
+  ap: {}
+
+# In combination with the `ap` this allows the user
+# to provision wifi credentials to the device via WiFi AP.
+captive_portal:
+
+dashboard_import:
+  package_import_url: github://esphome/example-configs/esphome-web/esp8266.yaml@main
+  import_full_config: true
+
+# To have a "next url" for improv serial
+web_server:
+
+binary_sensor:
+  - platform: gpio
+    pin: D4
+    name: "BadgerB"
+    device_class: light
+  - platform: gpio
+    pin: D3
+    name: "BadgerA"
+    device_class: light