diff --git a/.gitignore b/.gitignore
index 62004d1..3afa269 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@ PCB/Turntable/iidx_tt-backups/
 PCB/Keyboard/iidx_pico-backups/
 Production/PCB/Turntable
 Production/PCB/Keyboard
+build
\ No newline at end of file
diff --git a/Production/Firmware/iidx_pico.uf2 b/Production/Firmware/iidx_pico.uf2
index e4c8e59..9969b28 100644
Binary files a/Production/Firmware/iidx_pico.uf2 and b/Production/Firmware/iidx_pico.uf2 differ
diff --git a/firmware/src/main.c b/firmware/src/main.c
index 1a1d75d..10894f9 100644
--- a/firmware/src/main.c
+++ b/firmware/src/main.c
@@ -92,7 +92,7 @@ static void core1_loop()
 
 static void core0_loop()
 {
-    uint64_t next_frame = 0;
+    absolute_time_t next_frame = {0};
 
     while (true)
     {
@@ -114,7 +114,7 @@ static void core0_loop()
         cli_fps_count(0);
 
         sleep_until(next_frame);
-        next_frame = time_us_64() + 1000; // 1KHz
+        next_frame = make_timeout_time_us(1000);
     }
 }
 
diff --git a/firmware/src/turntable.c b/firmware/src/turntable.c
index 76195b8..3d87d1e 100644
--- a/firmware/src/turntable.c
+++ b/firmware/src/turntable.c
@@ -22,7 +22,7 @@ static uint16_t angle = 0;
 
 static void init_i2c()
 {
-    i2c_init(TT_AS5600_I2C, 573 * 1000);
+    i2c_init(TT_AS5600_I2C, 400 * 1000);
     gpio_set_function(TT_AS5600_SCL, GPIO_FUNC_I2C);
     gpio_set_function(TT_AS5600_SDA, GPIO_FUNC_I2C);
     gpio_set_drive_strength(TT_AS5600_SCL, GPIO_DRIVE_STRENGTH_8MA);
@@ -36,16 +36,46 @@ void turntable_init()
     init_i2c();
 }
 
-void turntable_update()
+static int read_angle()
 {
     const uint8_t as5600_addr = 0x36;
     uint8_t buf[2] = {0x0c, 0x00};
-    i2c_write_blocking_until(TT_AS5600_I2C, as5600_addr, buf, 1, true,
+    int ret = i2c_write_blocking_until(TT_AS5600_I2C, as5600_addr, buf, 1, true,
                              make_timeout_time_ms(1));
-    i2c_read_blocking_until(TT_AS5600_I2C, as5600_addr, buf, 2, false,
-                            make_timeout_time_ms(1));
+    if (ret != 1) {
+        return -1;
+    }
 
-    angle = ((uint16_t)buf[0] & 0x0f) << 8 | buf[1];
+    ret = i2c_read_blocking_until(TT_AS5600_I2C, as5600_addr, buf, 2, false,
+                            make_timeout_time_ms(1));
+    if (ret != 2) {
+        return -1;
+    }
+
+    return (buf[0] & 0x0f) << 8 | buf[1];
+}
+void turntable_update()
+{
+    int candidate = read_angle();
+    if (candidate < 0) {
+        return;
+    }
+
+    for (int i = 0; i < 2; i++) {
+        int update = read_angle();
+
+        if (abs(update - candidate) > 2) {
+            return;
+        }
+    
+        if (update > candidate) {
+            candidate++;
+        } else if (update < candidate) {
+            candidate--;
+        }
+    }
+
+    angle = candidate;
 }
 
 uint16_t turntable_raw()