vault backup: 2025-02-05 14:38:06

.stversions/OneNote/OSD/Courses/Arduino Low level~20250203-063558.md

@@ -0,0 +1,34 @@
+## Timers available on Arduino Uno
+
+  
+![Name 
+TIMERO 
+TIME-RI 
+TIMER2 
+Size 
+8 bits 
+(0 - 255) 
+16 bits 
+(0 - 65,535) 
+8 bits 
+(0 - 255) 
+• 
+• 
+Possible Interrupts 
+Compare Match 
+Overflow 
+Compare Match 
+Overflow 
+Input Capture 
+Compare Match 
+Overflow 
+• 
+Uses in Arduino 
+delay(), millis(), micros() 
+analogWrite() pins 5, 6 
+Servo functions 
+analogWrite() pins 9, 10 
+tone() 
+analogWrite() pins 3, 11 ](Exported%20image%2020231126171856-0.png)  
+
+If we use Timer 0 for something else, the arduino functions delay, millis, … won't work properly anymore.

.stversions/OneNote/OSD/Courses/EdX Autonomous Navigation for Flying Robots~20250203-063556.md

@@ -0,0 +1,46 @@
+## Sensors
+
+GPS: Accuracy: 3-5m, @2Hz
+
+Indoor: 1mm @ 200-500 Hz
+
+## Research
+
+[https://vision.in.tum.de/publications](https://vision.in.tum.de/publications)
+
+  
+
+## Geometry
+
+Invert, concatenate, estimate, optimize 3D orientation
+
+## Algorithms
+
+IMU Strapdown Algorithm
+
+Control Theory
+
+![Cascaded Control 
+Robot 
+Localization 
+Attitude Estimation 
+RPM Estimation 
+Sensors 
+Jürgen Sturm 
+Trajectory 
+Position Control 
+Attitude Control 
+Motor Speed Control 
+0.1 Hz 
+10 Hz 
+1 KHz 
+10 .000 
+Actuators 
+Quadrotor 
+Physical World 
+Kinematics 
+Dynamics 
+Autonomous Navigation for Flying Robots 
+17 ](Exported%20image%2020231126171859-0.png)  
+
+Watch out: The inner control loops must be around an order of magnitude faster than the outer ones, such that they appear "static". If not you can get interference between the two

.stversions/OneNote/OSD/Courses/Electrical Engineering~20250203-093639.md

@@ -0,0 +1,13 @@
+Battery Management
+
+[https://www.coursera.org/specializations/algorithms-for-battery-management-systems](https://www.coursera.org/specializations/algorithms-for-battery-management-systems)
+
+  
+
+secondary interesting courses:
+
+  
+
+[https://www.coursera.org/learn/thermodynamics-intro](https://www.coursera.org/learn/thermodynamics-intro)
+
+[https://www.edx.org/course/robotics-foundation-ii-robot-control](https://www.edx.org/course/robotics-foundation-ii-robot-control)