Transmitting Water Depth using ESP32NOW and Uploading to Arduino IDE
Hey everyone, I am trying to send data from outside using one ESP32 outside and one inside. The one inside connects to the internet and receives the data from the one outside VIA ESP32NOW. The one...
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4 Channel Relay
I love this forum, I have done 2 other posts and both times solved it. I have a 4 channel relay that I can figure out what im doing wrong, it works when powered directly from the Arduino 5v pin, the...
View ArticleObject depth tracking with magnetometer
Hello, I have a 3-axis magnetometer and a small plastic box of known size. The magnetometer is fixed to the bottom of the box, and I am trying to track the depth of the object within the box, which I...
View ArticlePulseoximeter, thermometer and clock 3in1
im making a pulse oximeter, thermometer and clock 3 in 1. I'm using an arduino uno r3. I'm having problem and i don't know how to fix it. Here is my code. #include <Wire.h> #include...
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Remote control trouble
I have a question about infrared remote control, I was adding to my project a remote control, I reach to decode every button I've found In it but it doesn't work properly. I only want to change relays...
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Billy the Relay - ESP32/ESP8266 remote control 101
Hi, this is the first time I share info about my project on the official Arduino forums Feedback and questions are welcome. This project is like "communications 101" for ESP32/ESP8266, or at least...
View ArticleIr remote control repeater?
I'm interested in know how to build an remote control range extender or repeater for home or office use. Do you have any idea how to code it? 1 post - 1 participant Read full topic
View ArticleHow and where to get an Arduino beginner online job?
Hello, I've made some basic projects and I want to know where I can find my first job to test my habilities in this discipline 2 posts - 2 participants Read full topic
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How important is "break:"?
Hello I have a question about code syntaxis: If I change "break:" by delay(time). means the same thing? What is the equivalent meaning of that? 5 posts - 5 participants Read full topic
View ArticleButton control through BLE communication
hello I am currently using the RN52s as an Arduino tool. Currently, the mouse cursor and BLE UART functions are applied simultaneously, but the function to change the function of the buttons on my...
View ArticleError during special command "ERASE_PAGE" get_status on Portenta Machine Control
Hello, I am having problems with uploading a sketch to the portenta machine control for the first time. Originally, it did not show up on the COM ports, but I realised that double tapping the reset...
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Is there a better Modbus library?
Hi folks. I'm trying to implement an application to read and write using the Modbus protocol and I'm feeling a bit discouraged. I've been able to implement my application on an Uno Wifi Rev 2, using...
View ArticleNrf24l01 saya tidak berfungsi, padahal pernah berfungsi satu kali, setelah...
Nrf24l01 dan arduino Uno 3 posts - 3 participants Read full topic
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DS1307 does not keep running on battery power (ESP8266/3.3V Arduino)
I've been searching everywhere and I couldn't find a concrete answer. Any help or pointers are appreciated! I have a board that has a DS1307 (Tiny RTC) module connected to the 3.3V ESP8266 chip, and...
View ArticleESP web serve a SD Image
Hi, I'm attempting to serve an image from sd card via the server... It is ammended from CarmeraWebServer project example. String read_file(const char * path) { String s = ""; Serial.printf("Reading...
View ArticleAdding 30sec to a count down timer using Tm1637
Hi I'm trying to create a timer that starts on it's own when powered on but want to add 30 seconds when ever I push a button any help is greatly appreciate it. #include <TM1637Display.h> //...
View ArticleRFID Stops detecting New Cards after HTTP POST, ESP32
I'm making an RFID music player. One of the player's functions is to turn the LED lights in my room a different color depending on what's being played. I use WLED API to send a POST request to the...
View ArticleOLED + DS3231 (RTC) +DHT22 Project
Hello everyone, I am not very experienced with arduino so I'll do my best to offer all the required information, thank you for your help patience Goal of project I want to be able to display...
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Stepper Motor Help
Hello, Newbie here looking for assistance troubleshooting my system. I followed a very straightforward tutorial I found on YouTube, but can’t get my motor to move at all. I’m using a 12V 2A power...
View ArticleFilling uint16_t Array with greater than zero
Hi Everyone, I'm having a problem trying to fill an array with a positive number (not zero), and I'm pretty sure I'm not doing something right, but it escapes me right now. Can someone maybe point out...
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