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 …
ds3231 SQW enable 1hz practicing - Arduino Forum
Sep 24, 2018 · Hello, i am learning how to use I2C, speccially with ds3231 for starting, there are a lot of libraries to make ds3231 work but i want to learn from scratch, i´ve been readiing some …
ESP32: Schematic to blink LED during deep sleep
Apr 18, 2024 · My goal is to have a circuit that allows me to disable the LED, enable the LED at 100% and to blink that LED. This should all be possible to happen while the ESP is sleeping. …
Frequency Square Wave - Programming - Arduino Forum
Oct 1, 2023 · ProjectsProgramming Paulvlaar8 October 1, 2023, 4:02pm 1 I'm trying to get a square wave between 1000 HZ and 100000 HZ. I have the hardware all setup but the …
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 …
Connecting DS3231 RTC SQW pin to Uno R3 - Arduino Forum
Dec 20, 2024 · I want to use a DS3231 real time clock module to send 1Hz pulses into an Arduino Uno R3 digital interrupt pin 2. The RTC module is a no-name brand. It says HW-084 on the PC …
DS3231 RTC Board Without a Battery - Arduino Forum
Aug 4, 2023 · Is it OK to use a DS3231 board without a battery? I am a newbie just starting out with Arduino, and need accurate fairly long term timing for my Nano stepper motor project. I …
Opta PWM limitations - Opta - Arduino Forum
Mar 12, 2025 · PWM 1 and 4 work fine down to ~1Hz. This behaviour was tested/could be recreated with standard PWM example code in IDE. Has anyone observed such behaviour? is …
How to set PWM frequency to 1 Hz on an UNO - Arduino Forum
Nov 29, 2018 · I would like to set a pwm output on my UNO to run at a 1 Hz frequency and then, by analogWrite, set it at 10% or 90% dutycycle. Can that be done? If so, how do I do it? The …
how to adjust precise sampling rate of analog signal sampling
Oct 21, 2017 · Hi, I'm using proteus software to do microcontroller project of arduino uno. the project is analog signal sampling of 1Hz sinusoidal signal and show the value through serial …