diff --git a/bbn_m5atomS3_lite_encoder_unit/bbn_m5atomS3_lite_encoder_unit.ino b/bbn_m5atomS3_lite_encoder_unit/bbn_m5atomS3_lite_encoder_unit.ino
new file mode 100644
index 0000000..4059240
--- /dev/null
+++ b/bbn_m5atomS3_lite_encoder_unit/bbn_m5atomS3_lite_encoder_unit.ino
@@ -0,0 +1,34 @@
+#include <M5AtomS3.h>
+#include <Wire.h>
+#include "Unit_Encoder.h"
+
+Unit_Encoder sensor;
+signed short int last_encoder_value = 0;
+
+void setup() {
+  auto cfg = M5.config();
+  AtomS3.begin(cfg);
+  Wire.begin();
+  Serial.begin(4800);
+  sensor.begin(&Wire, ENCODER_ADDR, G2, G1, 100000U);
+}
+
+void loop() {
+  signed short int encoder_value = sensor.getEncoderValue();
+  bool btn_status                = sensor.getButtonStatus();
+  if (last_encoder_value != encoder_value) {
+    Serial.println(encoder_value);
+    if (last_encoder_value < encoder_value) {
+      sensor.setLEDColor(1, 0x00FF00);
+    } else {
+      sensor.setLEDColor(2, 0xFF0000);
+    }
+    last_encoder_value = encoder_value;
+  } else {
+    sensor.setLEDColor(0, 0x0000FF);
+  }
+  if (!btn_status) {
+    sensor.setLEDColor(0, 0xFF00FF);
+  }
+  delay(200);
+}