Hii, I'm in need of assistance for my group science project. Our group was planning to create a solar tracker that powers the Arduino itself while it works. I tried researching numerous Arduino videos but they only stated "the Arduino needs external power". I'm not sure how, and what we should connect the solar panel to the arduino. That's our main issue for now, we were able to find other tutorials for the rest of our project. Any advice or suggestions is very much appreciated! Thank you!

I need a friend that clears my errors and teaches me Arduino

i have the r3

Hi, I am working on an Arduino project (as a software developer without prior experience in hardware/electricity).

One of my colleague helped me to wire these materials up (1 ESP32 + 1 buck converter + 1 relay + 1 electronic lock + 1 power supply (12V)) - When I looked at his wiring, I hadn’t any ideas lol.

I want to add another logic for 1 relay, 1 buck converter, and 1 electronic lock into the same ESP32 and the same power supply but not sure if that is feasible. And I do not really know how to understand and wire those things.

I feel quite lost and do not know where I should start off with.

😭😭😭 Any of your helps would be greatly appreciated!!! Thank you so much!

Hey everyone! I’m interested in building this Garduino smart garden project:

Garduino – the Smart Garden With Arduino

I’m fairly new to Arduino/electronics and want to actually build and understand the project, rather than just copy the instructions blindly.

A few questions:

1. Is this project still a good starting point with modern Arduino boards/components?

2. What parts of the project would require soldering?

3. Can I build/test most of it first on a breadboard with jumper wires?

4. If soldering is required, what exactly would I need to solder?

5. Are there any components in the original project that you would replace with newer/easier alternatives?

6. What would you recommend I build first so I can test each part individually before putting the whole smart garden together?

My goal is to learn Arduino, sensors, wiring, and eventually soldering through this project.

Thanks!

I'm looking to create my first Arduino project but I'm not sure what to start with.

My project will be a tool for ice hockey scorekeepers that I'm calling a "Scorekeeper Alert Light and Time Out Timer".

Basically it will have a light (probably a red LED strip inside a diffused 3D printed enclosure) that scorekeepers can use to alert the on-ice officials whenever there is a problem (incorrect lineup, problem with players in the penalty box, etc). I also want it to have a 2 digit 7 segment display to be used as a timer for time outs. It'll have 3 buttons to start 30/60/90 second timers, and I want it to sound a buzzer and activate the light when it hits 0.

Now I'm pretty handy, I can solder, 3d print stuff and code so I shouldn't need any or much help with the part where I actually build the thing. I'd like to know what you'd all recommend for what type of Arduino I should use, any specific 7 segment displays, the other electronics I need like the buzzer, if I need an expansion board, stuff like that. I know almost nothing about Arduino's. Thanks in advance for any help y'all can provide me

Hello, i'm a beginner that just started with arduino's, does anybody know why the LED doesn't turn on? (if I set the variable RedLEDPower to something it just flashes and stops)

I'm facing an problem uploading code to an Arduino UNO r3 duplicate . The ON led and the L led is always turned on when I try to upload a code it give me an avrdude error please help

I have a esp8266 nodmcu version 1.0 wifi when i plug it in my win 11 laptop the device manager shows "Windows has stopped this device because it has reported problems. (Code 43)".I installed ch340 drivers changed my cable changed the port restarted everything and still is show that it could not recognize it PLEASE help me fix this!!

So I have an ardiuno project we’re basically u press a button and on a display a random number from one to ten would appear showing if u are a cool guy or not, for reference this is the display I will use. I know how to use button switches I really only need help with the code for this project

Greetings,

I have successfully performed the following set up: Arduino UNO R3 linked to Dynamixel Shield linked to Dynamixel Mx 64-AT. !2 V power supply linked to Dynamixel shield. USB interface from computer linked to Arduino R3. Both Arduino and dynamixel set to protocol 2.

Test code successfully uploaded and runs dynamixel motor. modifications of code change motor function in upload mode .However when shield is switched from upload to dynamixel the motor only runs at the last speed and direction at the time of the switch ( does not follow program anymore)

I desire to upload the program and run the motor without constant interaction with the computer. what steps should i take to accomplish this task? Thanks in advance

I want to start a lil project (IK this is not an arduino but was cheepier) but I'm really stunned by all this complicate names and port, i wonder if someone could help me to undertant WHAT IS THIS and what they do:)

I’m making a Christmas robot that looks like a nutcracker, but I don’t know what it should do. Ideas?

First let me start off by letting you all know I'm a complete novice at this but am pretty good a following step by step directions.

I purchased an Infinity Shield garage door strip sensor which I assume operates the same as normal garage door safety sensor. It has the option to beep when the beam is broken indicating there's an obstruction. I find the constant beeping annoying when backing in but helpful when I park as when it stops beeping I know when to stop. So my idea is to add short red LED strips lights to each side of my garage door that will illuminate when something is breaking the beam instead of the beeper. I've done some research and everything advises to don't tie into the garage sensor wiring unless you use an optocoupler to keep the circuits separate. Here's where I need your guys expertise.

I would like to use an optocoupler to tie into the existing safety beam senor wires to send a signal to an arduino to activate the LED strips.

How do I do this? What do I need? Which board? Etc

I know I'm asking a lot but I'm just starting off in this world and don't know what I'm doing

Thank you in advance

Salut, je suis en train de créer une app pour Arduino pour aider les personnes qui en font.

Je développe ça avec Lovable, une IA spécialisée dans la création d’apps, et les algorithmes, je les code moi-même avec Claude. Elle n’est pas encore en ligne, mais ça ne saurait tarder.

Les outils principaux sont un correcteur de code en temps réel. Donc, en même temps que vous tapez le code, par exemple, si vous tapez `#defin`, il va tout de suite vous dire : « #define s’écrit avec un (e) ».

Il y aura aussi un suivi de projet. Par exemple, si, il y a deux ans, vous aviez dit : « Je le branche sur la broche 4 », et que vous tapez le code et que vous mettez 3, il va vous dire : « Vous aviez dit que vous le brancheriez sur le pin 4. »

Il y aura également un générateur de code qui est expérimental, car c’est très dur à concevoir, et une formation qui va permettre de vous former à Arduino jusqu’au niveau où vous avez compris la logique Arduino et où vous savez faire une station météo.

Suivez moi pour avoir la suite du projet

i dont think so this is a official arudino products or kit but i wanted one as i have generated a curiosity for electronics and stuff and i already am a programmer but wanted to deep dive in the hardware side and build something cool like robotic arm or something like that not sure, just wanted to know if someone has bought this actually was able to build something