diff --git a/.gitignore b/.gitignore
index 89cc49c..4de822f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 .vscode/c_cpp_properties.json
 .vscode/launch.json
 .vscode/ipch
+.DS_Store
diff --git a/platformio.ini b/platformio.ini
index 7e091ed..da5f7a8 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -1,6 +1,6 @@
-[env:esp32]
+[env:esp32-c3]
 platform = espressif32
-board = esp32dev
+board = seeed_xiao_esp32c3
 framework = arduino
 
 monitor_speed = 115200
diff --git a/src/sensors/MoistureSensor.h b/src/sensors/MoistureSensor.h
index ff640b9..60f8203 100644
--- a/src/sensors/MoistureSensor.h
+++ b/src/sensors/MoistureSensor.h
@@ -12,7 +12,7 @@ public:
   unsigned long lastUpdateMs() const { return _lastUpdateMs; }
 
 private:
-  static constexpr int PIN_MOISTURE = 34;
+  static constexpr int PIN_MOISTURE = 3;
 
   Settings* _settings = nullptr;
 
diff --git a/src/ui/Display.h b/src/ui/Display.h
index 74298fa..748d78b 100644
--- a/src/ui/Display.h
+++ b/src/ui/Display.h
@@ -13,8 +13,8 @@ public:
   void bootAnimation();
 
 private:
-  static constexpr int PIN_SDA = 21;
-  static constexpr int PIN_SCL = 22;
+  static constexpr int PIN_SDA = 6;
+  static constexpr int PIN_SCL = 7;
   static constexpr uint8_t OLED_ADDR = 0x3C; // try 0x3D if blank
   Adafruit_SSD1306 _oled = Adafruit_SSD1306(128, 64, &Wire, -1);
   bool _ok = false;