20 lines
1.4 KiB
Markdown
20 lines
1.4 KiB
Markdown
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This is the affordable $20 option for those in a crunch.
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Here are some cool projects with the Arduino r4 minima.
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### Experiments in PID control with an Arduino UNO R4 Minima-powered robot
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[via arduino blog](https://blog.arduino.cc/2023/08/09/experiments-in-pid-control-with-an-arduino-uno-r4-minima-powered-robot/)
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ARDUINO TEAM — August 9th, 2023
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In robotics and several other disciplines, PID (proportional-integral-derivative) control is a way for systems with closed-loop feedback to adjust themselves according to sensor data without overshooting the target. Drones, for example, use PID control to remain stable without wild oscillations caused by over-correction. But implementing PID control can feel overwhelming, so Adam Soileau from element14 Presents built a simple robot for some experimentation.
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This robot’s only job is to drive forward until it sees a wall, then stop at a specific distance from that wall. That isn’t hard to achieve when a robot is moving at slow pace, because the code can tell the robot to stop moving the moment it reaches the target distance. But when moving fast, the robot has to take braking acceleration into account and that is much harder to predict. PID control is perfect for this situation, because it adjusts motor output in real-time according to the incoming sensor data. |