From a83479f494199bcbd609481a97803cff959a17cb Mon Sep 17 00:00:00 2001
From: DocGarbanzo <dirk.prange@web.de>
Date: Mon, 30 Sep 2024 22:01:27 +0100
Subject: [PATCH] use measured gravity vs 9.81

---
 donkeycar/parts/imu.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/donkeycar/parts/imu.py b/donkeycar/parts/imu.py
index 6cf455a57..9753050ca 100755
--- a/donkeycar/parts/imu.py
+++ b/donkeycar/parts/imu.py
@@ -148,7 +148,7 @@ def calibrate(self):
         num_loops = 200
         gyro = np.zeros(3)
         accel = np.zeros(3)
-        accel_norm =
+        accel_norm = np.zeros(3)
         for _ in range(num_loops):
             gyro += self.mpu.gyro
             accel += self.mpu.acceleration