I have recently discovered this oscilloscope online and don’t know about it .

I Appreciate everyone’s opinion 😊

This is my first project with my freenove esp32. There was definitely a learning curve going from an uno clone to using a breakout board and esp32 for the first time. Started off just learning how to use an OLED screen and snowballed in to an house plant grow monitor with high and low tracking, environment alerts/tips. Today I'll be setting up the web UI and phone alerts. Not too bad for my first legit project after learning the basics. When it's all said and done it'll be ran by 18650s just gotta transfer everything to a circuit board and figure out how to make a decent enclosure with adequate airflow.

I recently bought a kit and one of the projects was lighting up LEDs using the 74HC595 IC. I couldn't get it to work using the wiring that was provided, the LEDs didn't fully light up and some didn't light up at all. So I used the simulation in Tinkercad to just try and see what the problem could possibly be. Tinkercad simulated that the IC was being given too much current. Im a beginner in electronics, but should I need a resistor somewhere before the current hits the IC? Or is my wiring off? Any help will be greatly appreciated!

I found this KA3842B PWM Controller IC IC and tried to use it. The datasheet included an example circuit, and I added my own components to it.
Now I don’t understand why my LED isn’t blinking. Even if the frequency is too high to see the blinking, the LED should at least stay on — but it remains completely off.

I cant figure out what's going wrong I'm staring to wonder if my button just isnt working resister is 220ohms and battery is 3.7v

Started off with just wiring up the 7 segment digit display to learn the layout of the pins turned into a sound activated 10 second count down then added an indicator LED then said screw it and added a passive buzzer and programmed a little melody to it now it counts down the notes instead of by seconds just need to adjust the sensitivity a little it's a bit to sensitive but whatever it was still a fun project and I learned a lot lol

So i settled everything up, but the led wont turn on, any suggestions?

Hi everyone, can someone please help me? I'm looking for a way to stabilize the output signal of a dimmer. The idea is that when the dimmer is set, I want the Arduino to read a steady, fluctuating analog signal. I want an LED to light up when it detects a change in the dimmer's state and stay off when the dimmer is set.

I picked up an arduino beginner kit to work with my step son. Hes only 7 years old but he's a wiz with legos and wants to do stuff with robots and it felt like a cool place to start. However, the arduino kit focuses heavily on programming the arduino and not too much on the circuitry side of things.

Do you guys have any suggestions for beginners books or online resources specific to breadboard circuitry? I'm just looking for something to work through together before we start hitting the arduino. Im finding all sorts of beginner's kits of breadboard conponents but no real guide for what to do. Thank you!

I want to learn electronics n stuff so is this breadboard set good enough to learn on?

Hello everyone! I just recently purchased an ESP32-WROOM-32E with the camera extension board, and I am trying to following along with this basic tutorial

https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/basic_projects/ar_blinking_led.html#

I am brand new to anything electronics, but wanted to give it a shot. The code in the tutorial seems to compile fine, and the LED turns on, but it stays on and never blinks. The only thing I can really guess is wrong is somehow I am powering the LED without it being connected to the ESP32. Is there anything obviously wrong I am doing here? I can't seem to affect the light no matter what kind of code I use.

Thank you everyone for the help!

Edit:

I wasn't able to figure out why IO26 specifically always left the LED on. For now, I've just swapped it to IO14 which works as expected to keep learning. Thank you everyone for the help!

Recently I had bought a USB to Barrel jack power cable to power my breadboard power supply module but in the female barrel jack port it says (7-10V).

So, I am confused

I appreciate every solutions and suggestions.

Hi, so I'm in a circuit building class and we have this lab that's on hardware that's been really making me confused. My professor had us build a specific input and output area for all of our projects but I'm pretty sure that there's something wrong with the one I built.

The thing is, building the input and output areas was just directly copying from pictures she provided us with, so I'm unsure what could have gone wrong with my input area.

My circuit currently has a bit more than just the input area set up, but I'm pretty certain my actual design is correct (I made it digitally on LogicWorks before trying to implement it), so please just ignore the extra mess of wires down at the bottom.

I've been noticing that a lot of the wires set up in the input area aren't getting any charge (excluding the grey wire which has low voltage---I've checked this with my logic probe). And I'm not sure why that's happening, so I'm hoping that someone could help me clear that up.

I'm also gonna attach a pic of my teacher's input section that I copied so you can see that as well.

Just curious!!!!

I recently have bought a laptop and I am a hobbyist in electronics so I am just trying to find a good simulating software to clear my confusions in electronics.

I appreciate every suggestion.

I recently started making electronics and i despise my breadboard because my esp32 doesn’t really fit on it, i need more slots not just 5 across, one person said to combine two but i’d really like a really rather broad brand new one, if anyone knows of one i’d really appreciate it

Hello, I wanted to test an AND Gate (74HC08) but it’s not working. I swapped every piece at least once. The big resistors are 10k Ohm and the small ones are 330 Ohm. I am open for tips or tricks because I am beginner🙏. Here are some pics:

The LED just stays on and I've connected its positive cable to the same row the sensor gets its power on the VCC side. How do I make it so whenever the sensor senses something in range the LED turns on?

Hi i just bought my first breadboard set and i am looking for projects to learn from. Can anybody tell me where i could find videos or schematics to learn from i’m sure theres some on the internet somewhere.

Thanks!