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 …
Code test the duration press of the button - Arduino Stack Exchange
(millis() - btn_timer) >= 1000 Switch bounce doesn't last for a full second. You could however press the button, and release it within one second. Try changing it to a more sensible value …
ESP32 trouble with running ledcWrite inside of ISR
ESP32-S2 (Wemos/Lolin S2 mini) Arduino 2.1.1 on Windows 11 Hello, Thank you for taking the time to read this post and for any assistance you can provide. I consider myself a newbie …
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 …
Need some help in coding a "timer" in an if else statement
1 I want to code something like a "timer" (don't know what to call it) in an if else statement in my arduino uno. Basically I have 2 buttons. If the button1 is pressed and button2 is also pressed …
LiquidCrystal library and timers don't seem to be compatible
If I use compare match the LCD display just shows faint flickering squares on its first line, like it's doing something but too quickly for the LCD to display. I looked at the source for …
Having trouble figuring out CTC on Timer 1 with ATTiny85
I'm using Timer1 on the Attiny85 clocked at 1MHz to toggle an LED every 1 second. However, I'm having some issues regarding prescaler and OSC value selection. I'm using this formula, …
Arduino Nano timer drifting - Arduino Stack Exchange
Jan 9, 2025 · Bro can u add some line to my orignal code to add delay of 15 second after every 12 hour in this way clock wil delay time 30 second in 24 hours – jagpal singh Jan 9 at 9:44 …
Power save Sleep Mode Arduino - Arduino Stack Exchange
I have a page about power saving. About the first suggestion on that page is to not use an Arduino "board" (particularly one with a USB interface chip, power LED and voltage regulator). …
Translating analogWrite () into PWM duty cycle formula
Mar 5, 2024 · On pins 5 and 6 (those controlled by Timer 0): duty cycle = (x+1)/256, except for x = 0, which gives a duty cycle of 0. On the other PWM pins: duty cycle = x/255 The difference …