Temperature controller is changing from normal to frost mode
The next stage in creating my three zone temperature controller with frost protection during silent hours. I have removed the previously include 'while' functions. The sytem now functions, however...
View ArticleUltrasonic distance check and Millis
I'm struggling to figure this issue out. I'm sure it's just me not having a firm grasp on how this works. What I'm doing, in general, is create a robot that runs as a state machine. Everything is...
View ArticleControl the flowrate of the water
Hello everyone, I am working on a project that requires me to control the flowrate of a water using Arduino, my initial idea is to use a control valve that allows me to set the opening of the gate of...
View ArticleArduino Ultrasonic Parking Sensor
I'm just getting into coding and wrote this simple code to build a parking sensor. It works for the most part but I'm having trouble getting the LED to turn off after certain time of no movement and...
View ArticleCommunication problem between esp8266 and UNO
Hello everyone, I have a communication issue between an Arduino Uno and an ESP8266 connected to the Arduino Cloud. The Uno measures several variables (temperature, conductivity, pH, as well as 4...
View ArticleNrf24L01 ACK Comunication Dont work
Hello, I need help with an issue I'm having in establishing a conversation between two NRF24L01 modules using ACK (Acknowledgement). I'm using two Arduino Nano boards as MCUs (Microcontroller Units),...
View ArticleArduino nano not working
My arduino nano worked fine, i didn't do anything to it (i supose) now it is not working, when i connect it to my computer it is not seen, the only led that is turned on is PMR in red color 1 post - 1...
View ArticleI2C disrupts sketch
I have an arduino control my greenhouse in a simple way. The temperature (DHT11) as sensor to open and close windows via relay and an actuator. And buttons to override. Also a relay to control...
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Controling stepper motor from 3.3V transisitor , electric issue
Hello, I'm currently working on a large 3d printed 6dof robotic arm. I'm using Nema 23 stepper motors and DM556Y stepper motor drivers and an Esp32. My Esp32 can only output 3.3V but my drivers need a...
View ArticleSeeking advice for board and sensors to use
Hello, Arduino community, I aimed to develop a school project for a remote monitoring system for farmer owners to monitor the health and well-being status of their animals. The system will utilize...
View ArticleBidirectional communication from RS-232 to half-duplex RS-485 using arduino nano
Hello everyone, I need to setup bidirectional communication between 2 devices, other one is using normal RS-232 and other one is using half-duplex RS-485. Basically RS-232 is sending commands which...
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My ESP32-cam cant connect to a specific wifi username
Hello. I have ESP32-cam as in picture My ESP32-CAM didn't connect to a specific Wi-Fi network with the username 'OneAL-123,' even though other boards like the ESP8266 Wemos and other devices connect...
View ArticleGxEPD2 Version 1.5.0 vs. 1.5.1
Hey! A few years ago, I made a project with a 2,9" ePaper. Now I'm try to compile the sketch again but that dosn't work. I went back to older versions of the GxEPD2 library and find out that my sketch...
View ArticleThe wheels in my robot are not moving, even though I uploaded a code to it
This is my first time in robotics and also for my research paper, so I apologize for my terrible knowledge of it. Anyway... The robot I'm using is LAFVIN 2WD Smart Robot Car Kit V2. I've been trying...
View ArticleArduino GIGA R1 WiFi and peristaltic pumps
Hi everyone! I just came across the Arduino GIGA R1 WiFi board and would love to use it together with the Arduino GIGA Display Shield for my new project. However, I saw that the board has an operating...
View ArticleOFFTOPIC - BMS and DC breaker
Hi to all ! I bought one SOLE 48V / 5KW offgrid solar inverter. The inverter has build in charger and he can accept max 450V from solar panels. So far so good, but ... Like on other inverters that i...
View ArticleIntermitant Upload Errors
I just thought that I would post this in case it helps fixing problems for someone else. I’ve had intermittent problems with uploading sketches to my boards with connection errors and fatal errors,...
View ArticleLIDAR sensor TF02 Pro with Arduino UNO
i am using TF02 pro LiDAR sensor with Arduino UNO for intelligent traffic system. I am using a following codes but facing a problem of false signals in between when sensor reads 0 cm average distance....
View ArticleProblem with pcf8574
Hi guys. I've made a macro keyboard 2 years ago with a pro micro and i wanted to reprogram actions but since i re uploaded the code (that was previously working fine), it seems that the pcf8574 state...
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Is it possible to create this? DHT22 Sensor
Hi guys, My group task with DHT22 sensor where we need to show in the LCD if it's raining or sunny in the outside, it is possible? or should we add more sensor?This is our expected materials. Thanks...
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