Perhaps i would set a timer to that flag that the interrupt sets? And if some time passes without the flag being set, this means that the interrupt did not run.īut using another timer (my interrupt already uses two timers) maybe would complicate things further.
Arduino timer interrupt pin 2 how to#
This means i have to figure out how to detect when the interrupt is not run. What i would like to do, is to detect when the resistance is open circuited and move on. It cannot progress because it requires a flag to be set up ,from when the interrupt finishes execution (the interrupt sets that flag at the end). Then the analog circuit does not produce and signal, and no interrupt is triggered. For example, the resistance is open circuited.
The problem is when the sensor doesn't work.
The interrupts measure time between the incoming signal pulses, to figure out the resistance of a sensor, that is being produced from a supporting analog circuit. On core1 I have a task which sends some gibberish on bluetooth with the SerialBT.println('1') function. The button comes in on pin 2 and triggers an interrupt. The experiment I am currently attempting is 'debounce a button, using interrupts'. A different interrupt is run from inside the 1st interrupt, when the timer overflows. In the core0 task I set up a timer interrupt that signals to the task (through the interruptCounter variable) to toggle a pin every 100 us. Although I have been programming for over 50 years on lots of machines, I am just now learning the Arduino. More specifically, when a signal arrives in a pin, an interrupt is run that starts a timer. I am dealing with code thatt i received that relies heavily on timer interrupts.
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