May 14, 2023 - Hi Everybody, I'm interested in the ESP32-core what are the lines of code for function delay() inside the core for ESP32 So I tried a find-text in files search in the path C:\Users\dipl-\AppData\Local\Arduino15\packages\esp32 but with no success. As the function delay() can be used in ESP32-code it must be defined / declared somewhere How would you start searching for it? extension filter *.cpp? what folder-paths? is this so special that it is just a precompiled hex-file whcih means I c...

When it get’s a request it checks what it’s for and sends the response. Most of the time it’s idling so you can do a lot. Also remember that the ESP32 has two cores so you can set one to handle HTTP requests and the other to handle everything else. ... Hi Steve, Thanks.. I am looking at NOT using regular delay()..

November 18, 2022 - Hi all, I am using ESP32 to do a project by using delay() function. It seems to me that the delay() function never works! I tried using the millis() as well and it doesn't work so well neither. unsigned long ini= 0 ; void setup() { Serial.begin(115200); delay(10); wifisecure.setInsecure(); while (status != WL_CONNECTED) { Serial.print("Attempting to connect to SSID: "); Serial.println(ssid); // Connect to WPA/WPA2 network.

August 1, 2025 - I'm still using Arduino IDE 1.8.9 and the esp32 Boards extension (by espressif Version 3.3.0) with an ESP WROOM 32 module. A small test sketch with nothing but void setup() and some Serial output does not work, unless I add some delay between Serial.begin and the first Serial output.

February 21, 2025 - That code is from main.cpp of the ESP32 Arduino core source. ( It took me a few minutes to type up the details. Web Reddit doesn't allow pics and text, only title and pics.) Your point is interesting, except the 5ms delay is not used on any dual core ESP32, just the single core.

What Is delay() and Why Use It? The delay() function tells your ESP32 to “wait” before running the next line of code. One millisecond equals one-thousandth of a second. For example, delay(1000) makes the ESP32 pause for one second.

Delay is an arduino function wrapper that calls vtaskdelay. You should use it if you are using arduino, and also you should post in the arduino forum. https://esp32.com/viewtopic.php?f=2&t=2377 A tick is what you configure it to be.

January 6, 2021 - https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/freertos.html · Delay doesn’t have to block like Arduino. Delay some milliseconds like this: vTaskDelay(pdMS_TO_TICKS(10)); Since vTaskDelay accepts ticks, the ...

April 2, 2019 - Using the millis() functions takes a little of extra work when compared to using delay(). But your programs can’t do multitasking on the Arduino without it. Share this post with a friend that also likes electronics! You can contact me by leaving a comment. If you like this post probably you might like my next ones, so please support me by subscribing my blog and my Facebook Page. ... Learn how to build a home automation system and we’ll cover the following main subjects: Node-RED, Node-RED Dashboard, Raspberry Pi, ESP32, ESP8266, MQTT, and InfluxDB database DOWNLOAD »

Firmware for u-blox NINA W102 WiFi/BT module. Contribute to arduino/nina-fw development by creating an account on GitHub.

July 5, 2022 - If portTICK_PERIOD_MS > 1 (i.e. CONFIG_FREERTOS_HZ < 1000), then small values will round down to 0, and no delay will happen.

July 11, 2019 - Current code is: void delay(uint32_t ms) { vTaskDelay(ms / portTICK_PERIOD_MS); } // My suggestion is: void delay(uint32_t ms) { uint32_t delay_end = millis() + ms; vTaskDelay(ms / portTICK_PERIOD_MS); while (delay_end > millis()) { NOP(); } }

December 18, 2018 - espressif / arduino-esp32 Public ... link · New issueCopy link · Closed · Closed · Delay(x) delays 3 times more than expected while running esp32 at 80MHz clock speed#2211 ·...

September 6, 2020 - Hello, I need to copy serial data as soon each caracter arrives. I have much troubles with latencies during reads and writes. Here is my sketch... pretty simple. I've just added IO output to monitor read/write operations with a logic analyzer. HardwareSerial hwSerCntrlToLcd(1); #define SERIAL_CNTRL_TO_LCD_RXPIN 34 #define SERIAL_CNTRL_TO_LCD_TXPIN 13 #define PIN_READ_FLAG 33 #define PIN_WRITE_FLAG 32 #define BAUD_RATE 1200 ////// Setup void setup() { hwSerCntrlToLcd.begin(BAUD_RATE, S...

April 14, 2022 - Hello, I'm trying to send a simple message every 70ms from an ESP32 device configured in softAP mode to move a servo. However, on the receiver side, 3 messages arrive together and then a 200ms delay. This is more noticeable when a second client connects to the softAP.

July 26, 2025 - STM32 ESP32 ARDUINO PIC Electronics · July 26, 2025April 23, 2023 by Khaled Magdy · In this tutorial, you’ll learn how to use the Arduino delay function to add a time delay between events in your Arduino projects. We’ll also discuss some variants of Arduino delay to achieve a time delay of (microsecond, millisecond, second, and 1 minute).

December 9, 2024 - Good afternoon to everybody! I'm very sorry if I bother you with this question but I'm struggling on it since so long! I have an ESP32 and I'm using FreeRTOS to acquire 6 signals. I use Core0 to acquire the data and Core1 to send them to the Python GUI. So far, all good and it works very well!

Compile and upload code to ESP32 board by clicking Upload button on Arduino IDE ... On Serial Monitor, you will not see enough four times that the state changes to 0 (4 presses). That is because, during delay time, ESP32 CANNOT detect the changing.