From dd835b29c7a5a6dfe67e0fed9190589868ff54ee Mon Sep 17 00:00:00 2001
From: Jakob Lechner <j.lechner@digitaler-dienst.gmbh>
Date: Wed, 20 Aug 2025 11:10:21 +0200
Subject: [PATCH] Add esphome example

---
 esphome/dimmer.yaml | 62 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 esphome/dimmer.yaml

diff --git a/esphome/dimmer.yaml b/esphome/dimmer.yaml
new file mode 100644
index 0000000..c9521b4
--- /dev/null
+++ b/esphome/dimmer.yaml
@@ -0,0 +1,62 @@
+esphome:
+  name: dimmer
+
+esp32:
+  board: esp32doit-devkit-v1
+
+logger:
+
+api:
+  encryption:
+    key: !secret apikey_dimmer
+
+ota:
+  - platform: esphome
+    password: !secret otapass_dimmer
+
+wifi:
+  ssid: !secret wifi_ssid
+  password: !secret wifi_password
+  enable_on_boot: True
+
+light:
+  - platform: cwww
+    name: "LED light"
+    id: led_light
+    cold_white: output_cold
+    warm_white: output_warm
+    cold_white_color_temperature: 6500 K
+    warm_white_color_temperature: 2700 K
+    constant_brightness: true
+    gamma_correct: 0
+    default_transition_length: 0s
+
+canbus:
+  - platform: esp32_can
+    tx_pin: GPIO5
+    rx_pin: GPIO4
+    can_id: 4
+    bit_rate: 500kbps
+
+output:
+  - platform: template
+    id: output_cold
+    type: float
+    write_action:
+      - canbus.send:
+          can_id: 0x180
+          data: !lambda |-
+            float value = state;
+            uint8_t *bytes = (uint8_t*)&value;
+            return {0x00, bytes[0], bytes[1], bytes[2], bytes[3]};
+
+  - platform: template
+    id: output_warm
+    type: float
+    write_action:
+      - canbus.send:
+          can_id: 0x180
+          data: !lambda |-
+            float value = state;
+            uint8_t *bytes = (uint8_t*)&value;
+            return {0x01, bytes[0], bytes[1], bytes[2], bytes[3]};