DeetCode.

Low-Latency Control Loop

Hard C Control
Solve this problem

Write a high-rate PID control loop in C designed for low latency. The loop computes a new output based on error, integral, and derivative terms, and clamps output to safe limits.

Constraints

  • dt fixed.
  • Use float arithmetic.
  • anti-windup on integral.
  • output clamp.
  • Function signature: float pid(float set, float meas).
  • Must run fast (inline where possible).
Starter codeC
1float pid(float set, float meas);