I tried to make timer with millis() and after those 5 minutes reset timer but this is where i stuck, because compiling for attiny it shows error, but if i use same code sample just for arduino then its working. The Arduino millis() is a timer-based function that returns to you the time elapsed (in milliseconds) since the Arduino board was powered up. If current time is equals alarm time wake_HOUR=hour()& wake_MINUTE=minute() then it will run only for a minute so I added changeable field for the time how long output should be active - for example 5 minutes despite 1 minute. The real struggle is to make it active for longer time as one minute. And this discussion is about using them for timing purposes. The compare channel A/B interrupts are unused. The overflow interrupt is already being used by the timing functions millis () and micros (), as shown earlier. When the right amount of time is selected with the press of the second button the countdown is started one sec at the time and it is displayed on the OLED screen. Timer0 has three interrupts associated with it: overflow and compare channel A and channel B.
Each time we press the first button one minute is added to that time. But i added function that every day on some time it turns on output - something like alarm clock. We wanto to create the device that would work in the following way. I am making something similar like this project. Arduino 101 board for displaying the current date and time, as initi Oct 07. Im having problems with Attiny85 programming. The millis () function returns the current time in milliseconds (1/1000 th of a second) from when you powered up the board (or reset it). millis() has move on 10000 mS (10sec) from the value stored in delayStart.
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