What is a 1 Hz blink? - Programming - Arduino Forum
Oct 6, 2025 · what even is a 1hz blink? A blink cycle that repeats exactly once per second. Hz = repeats per second. The blink cycle you created repeats once every two seconds, so 0.5Hz as mentioned …
Blinking at 1HZ - Programming - Arduino Forum
Nov 30, 2019 · Hi, I have to do this task for an assignment. Write a program that turns on an LED attached to Pin3 for 5 seconds then turns it off. The light should stay off for 3 seconds and then the …
50% duty cycle square wave from 1hz to 1Mhz, easiest way?
Jul 27, 2012 · Other HardwareGeneral Electronics winner10920 July 27, 2012, 2:08am 1 Like said in the subject what would be the easiest way to make an adjustable square wave (50% duty cycle) that can …
1Hz PWM - Interfacing - Arduino Forum
Apr 11, 2010 · Hi, I've just ordered an arduino board for a new project I'm working on. I need a PWM output running at about 1Hz to drive a SSR... I've been browsing the documentation and it seems the …
DS3231 and SQW: unable to change output frequency beyond 1Hz
Sep 7, 2017 · A DS3231 connected over I2c can be programmed to output a 1Hz square wave (rtc.writeSqwPinMode (DS3231_SquareWave1Hz);) or nothing at all ( rtc.writeSqwPinMode …
1Hz pulse for mechanical clocks with NTP sync - Arduino Forum
Aug 26, 2023 · Seen some projects lately that needed a 1Hz clock signal for a mechanical clock. The go-to device for that is of course a RTC. I was curious if it could be done with an ESP8266 board and …
1hz clock - General Electronics - Arduino Forum
May 24, 2011 · I am thinking about making a no-microcontroller clock/timer/stopwatch (74 series ICs only + passive components, preferably). To make it as simple as possible I want to have a 1Hz clock …
1hz Watch Faces - Q&A - Garmin Forums
1hz is only available on some watches. The f5, f5s, f5x, 935, and Q5, but if you support a bunch of different watches, you can easily have it on some and not others. 1hz happens by way of a new …
Zero RTC - getting a 1Hz interrupt - Zero - Arduino Forum
Jun 17, 2018 · This means I now have an option of using an external Dallas 3231 clock and implementing an interrupt from it's 1Hz output as before, or using the internal RTC clock of the …
A 1Hz Source. Have I done this correctly? - Arduino Forum
Jul 25, 2017 · Hi. I have been looking around for a 1Hz stable clock (fair accuracy...10s of ppm) that is lower power. I have found this on CMOS oscillators: So have tried to make this to give me a stable …