Hi all, I am contemplating a project where I would want to have three independent timer interrupts running simultaneously and want to understand how the Arduino platform uses the timers on the Mega (ATMega 2560-based boards). As I understand, the ATMega 2560 has four 16-bit timers available and two 8-bit ones. Ideally I would like to hijack three of the 16-bit timers. My question is, I know. Examples and support for some of the statements are needed. redtails: In some situations, it is better to reset timer0 (see below) in a controlled fashion, instead of letting it overflow at its limit. What would some of those situations be? How is letting the timer overflow less controlled than another method? Though due to technical limitations, arduino cannot calculate numbers larger than 2. Hallo, ich lese immer wieder von Timern. Mittlerweile habe ich ein Projekt am laufen, in dem dies Sinn macht und zudem auch gut funktioniert. Warum ich mich jedoch gerade diesen Timer (Timer1) und nicht für einen Anderen entschieden habe, konnte ich zum Start des Projekts mangels Wissen nicht sagen. Gibt es irgendwo eine Übersicht/Tabelle über die unterschiedlichen Timer-Varianten aus der. Online Timer & Alarm: OnlineClock.net offers this simple digital Timer to use for FREE online! As you understand I need a hardware timer (counting clock ticks). Millis () makes demanding to ckeck if old value is smaller than millis () value (normal run from start until rollover) or greater (1st time after rollover) before any compare. Find answers to vb.net system.threading.timer from the expert community at Experts Exchange Hi all, I am seeing the following syslog message on my Catalyst 3650 switch. %ILPOWER-3-CONTROLLER_ERR: Controller error, Controller number 0: accessing failed %ILPOWER-3-CONTROLLER_ERR: Controller error, Controller number 1: accessing failed %ILPOWER-3-CONTROLLER_ERR: Controller error, Controller number 2: accessing failed Can anyone please susggest how to address/fix this? Cisco's website. I've been searching through the library code as well as thoroughly searched Google and haven't come across any working timer interrupt code for the Due. I could do this on the Uno in my sleep, but have yet to figure it out on the Due. Any pointers (xkcd: Pointers) or example code would be greatly appreciated. Basically I want to get a function to run once every X microseconds. Thanks. Hi, I'm trying to hook up a piezo buzzer (the one from the arduino starter kit) with a 555 timer. I'm using the following instructions : Build a Simple Laser Tripwire Alarm | Make: The issue is that I'm only hearing a single click coming from the piezo when the light beam is interrupted instead of an actual sound. The piezo works (I've hooked it up to an Arduino to play a melody) and the 555. Hallo Forum! ich habe längere Zeit damit zugebracht im Internet einen schönen Countdown Timer für ein LCD zu finden, da ich mein Belichtungsgerät nicht immer mit der Stoppuhr vom Handy bedienen wollte. Gefunden hab ich nichts, deswegen hab ich ihn mir selbst geschrieben. Und ich denke es könnte dem einen oder anderen mal behilflich sein. Momentan kann der Code folgendes: 2 Zeiliges LC.