Edit esp-espnow_test_transmitter1.yaml

esphome/esp-espnow_test_transmitter1.yaml

@@ -1,36 +1,46 @@
 #:########################################################################################:#
-# ESP-NOW Test Transmitter
+# ESP-NOW Test Transmitter 1
 #:########################################################################################:#
 #
 # DEVICE:
 #   ESP32-S3-Zero / ESP32-S3 Super Mini
 #
 # VERSION:
-#   1.1 - 2026-07-11
+#   1.2 - 2026-07-11
-#     - Removed duplicate GPIO4 binary sensor declaration.
+#     - Changed GPIO4 wake source to ESP32 EXT1 ANY_LOW.
-#     - GPIO4 is now used only as the deep-sleep wake pin.
+#     - Added delay to allow ESP-NOW to initialise before transmission.
-#     - Added KEEP_AWAKE handling while the wake button remains pressed.
+#     - Added GPIO4 input and pull-up initialisation.
-#     - Uses a random press ID rather than flash-backed press counting.
+#     - Waits for the wake button to be released before entering deep sleep.
-#     - Sends each button press three times for improved reliability.
+#     - Logs the ESP32 wake cause.
-#     - Configured ESP-NOW to use Wi-Fi channel 5.
+#     - Sends each message three times for improved broadcast reliability.
 #
 # WIRING:
-#   GPIO4 ---- momentary button ---- GND
+#
+#              3.3 V
+#                |
+#               10 kΩ
+#                |
+#                +-------- GPIO4
+#                |
+#             Push button
+#                |
+#               GND
 #
 # OPERATION:
-#   - Initial power-up or reset causes one test transmission.
+#   - Power-up or reset causes one transmission.
-#   - The ESP32 then enters deep sleep.
+#   - The transmitter sends the same ESP-NOW message three times.
-#   - Pressing the button pulls GPIO4 LOW and wakes the ESP32.
+#   - It waits for GPIO4 to return HIGH.
-#   - The ESP32 broadcasts the same message three times.
+#   - It then enters deep sleep.
-#   - It waits until the button is released and returns to deep sleep.
+#   - Pulling GPIO4 LOW wakes the transmitter and repeats the sequence.
 #
 # MESSAGE FORMAT:
-#   REMOTE_A:BUTTON_1:123456789
+#   REMOTE_A:BUTTON_1:<random press ID>
 #
 # IMPORTANT:
-#   - The receiver must be operating on Wi-Fi channel 5.
+#   - ESP-NOW channel must match the receiver network channel.
-#   - This transmitter intentionally has no Wi-Fi, API or OTA configuration.
+#   - The receiver is currently operating on channel 5.
-#   - Future updates will normally be installed by USB.
+#   - This transmitter deliberately does not connect to normal Wi-Fi.
+#   - Firmware updates are performed by USB.
 #
 #:########################################################################################:#
 
@@ -42,7 +52,7 @@ substitutions:
   button_id: "BUTTON_1"
 
   espnow_channel: "5"
-  wake_pin: "4"
+  wake_gpio: "4"
 
 #:########################################################################################:#
 # ESPHome Core
@@ -55,14 +65,40 @@ esphome:
   on_boot:
     priority: -100
     then:
-      - logger.log:
+      - lambda: |-
-          level: INFO
+          // Explicitly configure GPIO4 as an input with a pull-up.
-          format: "ESP-NOW transmitter booted."
+          gpio_set_direction(GPIO_NUM_4, GPIO_MODE_INPUT);
+          gpio_set_pull_mode(GPIO_NUM_4, GPIO_PULLUP_ONLY);
+
+          const esp_sleep_wakeup_cause_t wake_cause =
+            esp_sleep_get_wakeup_cause();
+
+          ESP_LOGI(
+            "wake",
+            "ESP-NOW transmitter booted. Wake cause: %d",
+            static_cast<int>(wake_cause)
+          );
+
+          if (wake_cause == ESP_SLEEP_WAKEUP_EXT1) {
+            ESP_LOGI("wake", "Wake was caused by the GPIO4 EXT1 input.");
+          } else if (wake_cause == ESP_SLEEP_WAKEUP_UNDEFINED) {
+            ESP_LOGI("wake", "Wake was caused by power-up or reset.");
+          } else {
+            ESP_LOGI(
+              "wake",
+              "Wake was caused by another source: %d",
+              static_cast<int>(wake_cause)
+            );
+          }
+
+      # Allow all ESPHome components, including ESP-NOW, to finish setup.
+      - delay: 750ms
 
       - lambda: |-
           id(press_id) = esp_random();
 
           char payload_buffer[96];
+
           snprintf(
             payload_buffer,
             sizeof(payload_buffer),
@@ -83,9 +119,25 @@ esphome:
 
       - logger.log:
           level: INFO
-          format: "Transmission sequence finished. Entering deep sleep."
+          format: "Transmission sequence completed."
 
-      - delay: 250ms
+      # Do not enter sleep while GPIO4 is still held LOW.
+      - logger.log:
+          level: INFO
+          format: "Waiting for GPIO4 button release."
+
+      - wait_until:
+          condition:
+            lambda: |-
+              return gpio_get_level(GPIO_NUM_4) == 1;
+
+      - delay: 100ms
+
+      - logger.log:
+          level: INFO
+          format: "GPIO4 released. Entering deep sleep."
+
+      - delay: 100ms
 
       - deep_sleep.enter: deep_sleep_control
 
@@ -94,17 +146,14 @@ esphome:
 #:########################################################################################:#
 
 esp32:
-  variant: esp32s3
+  board: esp32-s3-devkitc-1
+
   framework:
     type: esp-idf
 
 #:########################################################################################:#
 # Logging
 #:########################################################################################:#
-#
-# USB serial logging is useful during initial testing.
-# It does consume some power while the device is awake, but awake time is brief.
-#
 
 logger:
   level: DEBUG
@@ -113,12 +162,13 @@ logger:
 # ESP-NOW
 #:########################################################################################:#
 #
-# The transmitter is not joining Wi-Fi, so the ESP-NOW radio channel must be
+# The transmitter does not connect to Wi-Fi, so its radio channel is set
-# configured explicitly.
+# explicitly. Both transmitter and receiver must use the same channel.
 #
 
 espnow:
   channel: ${espnow_channel}
+  enable_on_boot: true
 
 #:########################################################################################:#
 # Globals
@@ -142,6 +192,7 @@ globals:
 script:
   - id: send_espnow_press
     mode: single
+
     then:
       - logger.log:
           level: INFO
@@ -153,18 +204,21 @@ script:
               id(transmit_payload).begin(),
               id(transmit_payload).end()
             );
+
           wait_for_sent: true
           continue_on_error: true
+
           on_sent:
             - logger.log:
                 level: DEBUG
-                format: "Broadcast 1 sent."
+                format: "Broadcast 1 submitted successfully."
+
           on_error:
             - logger.log:
                 level: WARN
                 format: "Broadcast 1 reported an error."
 
-      - delay: 50ms
+      - delay: 75ms
 
       - logger.log:
           level: INFO
@@ -176,18 +230,21 @@ script:
               id(transmit_payload).begin(),
               id(transmit_payload).end()
             );
+
           wait_for_sent: true
           continue_on_error: true
+
           on_sent:
             - logger.log:
                 level: DEBUG
-                format: "Broadcast 2 sent."
+                format: "Broadcast 2 submitted successfully."
+
           on_error:
             - logger.log:
                 level: WARN
                 format: "Broadcast 2 reported an error."
 
-      - delay: 50ms
+      - delay: 75ms
 
       - logger.log:
           level: INFO
@@ -199,36 +256,39 @@ script:
               id(transmit_payload).begin(),
               id(transmit_payload).end()
             );
+
           wait_for_sent: true
           continue_on_error: true
+
           on_sent:
             - logger.log:
                 level: DEBUG
-                format: "Broadcast 3 sent."
+                format: "Broadcast 3 submitted successfully."
+
           on_error:
             - logger.log:
                 level: WARN
                 format: "Broadcast 3 reported an error."
 
+      - delay: 75ms
+
 #:########################################################################################:#
-# Deep Sleep and Wake Button
+# Deep Sleep and GPIO4 Wake
 #:########################################################################################:#
 #
-# GPIO4 is pulled HIGH internally.
+# ESP32-S3 supports EXT1 ANY_LOW wake.
-# Pressing the button connects GPIO4 to GND and wakes the ESP32.
 #
-# KEEP_AWAKE prevents an immediate sleep/wake loop if the button is still held
+# With one configured pin, ANY_LOW means:
-# when the transmission sequence finishes.
+#   Wake when GPIO4 is pulled LOW.
+#
+# An external 10 kΩ pull-up between GPIO4 and 3.3 V is recommended.
 #
 
 deep_sleep:
   id: deep_sleep_control
 
-  wakeup_pin:
+  esp32_ext1_wakeup:
-    number: GPIO${wake_pin}
+    pins:
-    mode:
+      - GPIO${wake_gpio}
-      input: true
-      pullup: true
-    inverted: true
 
-  wakeup_pin_mode: KEEP_AWAKE
+    mode: ANY_LOW