diff --git a/examples/bno08x_simpletest.py b/examples/bno08x_simpletest.py
index 2bdad0f..ddea6e0 100644
--- a/examples/bno08x_simpletest.py
+++ b/examples/bno08x_simpletest.py
@@ -12,7 +12,7 @@
 )
 from adafruit_bno08x.i2c import BNO08X_I2C
 
-i2c = busio.I2C(board.SCL, board.SDA, frequency=800000)
+i2c = busio.I2C(board.SCL, board.SDA, frequency=400000)
 bno = BNO08X_I2C(i2c)
 
 bno.enable_feature(BNO_REPORT_ACCELEROMETER)