Handling Asynchronous Events with Arduino Interrupts
Learn how to use Interrupt Service Routines (ISRs) in Arduino to capture high-speed hardware events without polling, including the critical use of volatile variables and atomic access.
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Learn how to use Interrupt Service Routines (ISRs) in Arduino to capture high-speed hardware events without polling, including the critical use of volatile variables and atomic access.
Hardware interrupts let Arduino respond to external events instantly—no polling required. Learn how to use attachInterrupt() safely and avoid common pitfalls that crash your sketches.