timers - Button for Delay Select - Arduino Stack Exchange
Feb 14, 2019 · It only has one timer / LED flasher, but there is enough information in the sketch to figure out how to make the second timer / LED flasher. #include <Bounce2.h> byte led1State …
How do I count time in seconds? - Arduino Stack Exchange
Feb 21, 2016 · I have a statement: if(control > 100 && control < 130) { //count time 30 seconds and open pin1 for 3 seconds. } How can I count 30 seconds and open a pin for 3 seconds?
Put ATmega328 in very deep sleep and listen to serial?
Jul 5, 2015 · The device stays awake for 30 seconds after the last message is received in case of new messages. If a new message is receive the 30 second timer is reset. The PC interface …
How can I control blinking of LED while in timer function?
Dec 22, 2020 · When I am in the 30-second standby function, I want to turn the LED on and off at 5-second intervals. How can I do what I want using the read_counter() function?
How to make 1 second delay more accurate? - Arduino Stack …
Jul 18, 2018 · That way the one second interval will stay in sync with the time, even when there is a big delay now and then in the sketch. You will not get more accuracy by using a internal timer.
Simple LCD countdown timer - Arduino Stack Exchange
May 1, 2021 · I intended to make a countdown timer using the LCD. The original code simply prints "Hello World" in the first line, and then makes use of the millis() function to print the time …
I need two (25 and 30 kHz) pwm output on a nano
Sep 3, 2024 · Timer 1 is used to generate the second PWM signal (10kHz) on Pin 9. The prescaler for both timers is set to 8 (CS21 and CS11), but the frequency is determined by the …
How do I run a loop for a specific amount of time? - arduino uno
Here is an example that will run for 5 minutes. Note that the loop will begin executing anytime before the time limit is up, including 1 msec before; it can't cut-off something happening at the …
Arduino Nano R4 interrupts - Arduino Stack Exchange
Sep 27, 2025 · The Arduino Nano R4 uses the Renesas RA4M1 chip. It runs fast and supports precise hardware timers. You can trigger the ADC using these timers. Your goal is to sample …
Solution to interrupt Arduino every n seconds
Aug 14, 2017 · I am trying to build an external simple interrupt hardware system (like any timer object in software) which interrupts Arduino in a specified interval, say 20 sec.