I am creating a robot and want to implement record and replay functionality
I am creating a robot according to the code provided below and it is controlled by an app created by mit app inventor .i wanted to add record and replay functionality in it such that each actions...
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Trouble #DEFINE on a 74HC595
II'm trying to use this 7 segement display module (the 2 digit) that I found on aliexpress with this program. I think the problem is that the #define are not the right ones. Could anyone have used...
View ArticleStepper motor malfunction
Hello! How are you doing? I wanted to ask a question. I've been experimenting with various stepper motors, and I've noticed that all of them exhibit high vibrations, elevated temperatures, and...
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Stepper-motor-driver overcurrent
HI! I'm trying to control stepper motor PG20S-020 Circuit Diagram with it's driver SBC-10 voltage Range : 8-28V Rated Output : 30W Rated Current : 1.84A at DC12V Rated Current : 1.33A at DC24V When i...
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Connecting W5500 with arduino uno to connect oled
Hello Guys , I am totally new with ethernet module with arduino therefore I need extensive help. My task is: arduino ide version 1.8.x 1) connecting/configuring the connections with w5500 with arduino...
View ArticleResistance Measurement of BGA on a PCB
My project requires measuring resistance between the balls of the BGA on a PCB using Arduino UNO. I looked on the net and all I found was a resistance measuring circuit for resistors. How would I find...
View ArticleI want to know what components I would need to make a robotic arm
I am fairly new to arduinos and stepper motors but want to make a simple robotic arm where each of 3 motors is controlled by a separate potentiometer if possible. I would just like to know what...
View ArticleOutput variable at time intervals
The basic part of the question is simple, right? millis() passed >= intervalTime something=variable But this needs to create from 20-40 different variables so I am trying to make this into a struct...
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Bluetooth Module (HC-05) LED Not Blinking, Unable to Connect to Phone
I am currently working on a Mars Rover project, and I am facing issues with the Bluetooth module (HC-05) while trying to establish a wireless connection with my phone. The problem is that the HC-05...
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Can't read the pressure sensor value in SPI mode
I'm using a sensor WF100DPZ for pressure measurement with arduino UNO in SPI mode. Here's the code: #include <SPI.h> const int chipSelectPin = 10; // Choose the appropriate digital pin for chip...
View ArticleTrying to get old sketch to run in 2.2.1
I want to control 4 LEDs independantly from a remote. Turn them onoff . Ive copied a program and tried to adjust it to run but as you probably realise im having problems. #include <IRremote.hpp>...
View ArticleESP8266WebServer.h ACL O Firewall
Good afternoon, how could I use the ESP8266WebServer.h library so that http requests are only accepted if they come from a specific origin or IP, that is, as some kind of ACL or IP firewall? 1 post -...
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Speed feedback of the waterpump
Hi everyone, I have a water pump in this picture and its data sheet, there is a yellow line (speed feedback) I try to connect it with the Arduino, but I don't know how to show the speed with any...
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Void loop not looping with cycles
Its a four directional traffic light system that turns on based on a pattern. I just started and everything was going well but in void loop, only cycleOne is looping, not cycleTwo. This is for my 10th...
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Which board to select? (MKR GSM 1400)
Hello, New to Arduino and forums. Hope I posted in correct place I was looking to purchase a MKR GSM 1400 board for it's onboard cellular/SIM card capabilities, but from what I'm seeing it says 'end...
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Burning Bootloader onto UNO R4 using an UNO R3
As the topic name entails, I have a blank MCU on an arduino uno r4 minima and I was hoping I could burn a bootloader to it using my older uno r3. I wanted to see if anyone has tired doing this before...
View ArticleFastest feasible I2S sample rate of Arduino® Nano ESP32
Has anyone successfully used any Arduino product to get a I2S transmitted/received sample rate of at least 44.1kHz? Ideally I would like to run a 24MHz BCk with a 192kHz word select on the receiver,...
View ArticleComm between ESP32-CAM and Arduino Uno/Mega
Hi, what if I want to transfer the decoded qrcode from esp32-cam to arduino uno/mega? As when I use the code below, Uno only show int 255 when connect with esp32-cam, but it couldnt show the string...
View ArticleIDE stuck on pulsing trademark logo
IDE 2.2.1 fails to complete launch on my Mac mini m2 running Sonoma (14.2.1 (23C71). The splash screen launches with the pulsing trademark but after more than 30 minutes there is no change. I've...
View ArticleRemote Donkey Treat Dispenser
I am starting a nonprofit involving farm animals. There will be a live camera for people to watch, but primarily my farm animals will be providing animal contact therapy to those in need. It would be...
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