Beginner concepts: We’re gonna let you finish, but first this tutorial on Arduino interrupts

OK, year-old pop culture references aside [Kyle] dropped us a line to show us his tutorial on using interrupts with your Arduino. Given the single core nature of your average Arduino’s AVR you pretty much have two choices for monitoring occasional un-timed inputs: Either check an input at an interval (which risks missing the signal entirely) or set up … Read the rest

Tool Tip: microcontroller timer calculator

uC_timer_calculator

In life and embedded systems timing is everything. Give [Frank's] web-based timer calculator a try. Set your system clock resolution (in hertz making sure you account for any system clock divider), select your timer resolution and prescaler, then calculate based on desired ticks, overflows, or real time. He’s built this with the AVR chips in mind but it should be … Read the rest