schematic

Hello all, I've recently completed the design of a circuit schematic and PCB for controlling an RGB LED string using a NodeMCU ESP8266 WiFi module. The circuit operates on a 12V DC input and utilizes three relays to control the red, blue, and green LEDs respectively. The LED string itself draws...

I have a Supermicro 10xDRI-t and in the ill fate it happened that I dropped it and on the way down it scraped on a screwdriver before I caught it. After inspecting the board I found 2 missing and 1 damages cap (one of the missing ones could have been a transistor). Does anybody know where can I...

I've realized that I probably have to create a custom symbol and footprint for this part, but I am unsure how to connect it in relation to the other components in my schematic. Does the power go through the charger as in I connect everything to it or to the battery?

Hello, I want to make a test circuit with led, button, potentiometer, jumper etc components to test the circuits. By connecting my circuit connectors to this board, I will test whether the relevant lines work. I need schematic and layout examples for this structure and advice to improve it.

Hi, I have a PCB layout for which I need schematic design. Can someone create it?

Hello everyone, I wanted to share an idea that I have been thinking about regarding the use of GPT-4 in automating the creation of electronic components footprints and schematics for PCB design applications. As many of you know, creating footprints and schematics can be a time-consuming process...

Hello. I'm making a voltimeter-amperemeter using an atMEGA328P, L7805, LM358, LCD 16x2 and some other components. The problem is that even though the LCD turns on, it doesn't show the code or at least the white squares it should, and when I move the potentiometer that goes with it it doesn't...

I want to observe the effect of the parallel RC circuit on the feedback line in the circuit shown in the image below, I even expect this added structure to provide a decrease in the rise time, but I could not create it in the LTspice simulation, how should I proceed? Since I don't know the...

Hi everyone, I am relatively new to designing schematics and PCB's and have only ever done simple circuits up until now. I have tried my hand at designing my very first ESP32 based Dev board. I know that these can be bought for fairly cheap already, but wanted to have a go at actually designing...

First of all this is an urgent question my project's deadline is coming closer. Please help me I used FT232RL chip to make USB to TTL converter. I did this connection below. I can make serial communication but I cannot receive any message. I can also send message and TX Led is lightining up.

Hi I am studying a dc dc converter model. My friend drew this circuit and got this graphic. I added his circuit and graph . But I draw same model , same numbers for resistors capacitors v pulse source ,inductor, diode but my graph is very different. Actually my V pulse source looks like doesn't...

I started the basics of PCB and doing schematics around 6 weeks ago in my Computer Engineering Drafting and Design class. We used EasyEDA online tool to create the SCH and PCB for our assignments/activities. Our project now is to combine the circuits that we have made before into one system so...

We have a project coming up in my Engineering Drafting and Design class and I don't have much idea yet on how to accomplish it. We are tasked to combine different circuits to design one complete device. Then we need to of course make the Schematic (and simulate it), as well as creating the PCB...

Hi, I am having a hard time figuring out how to fix this warning. It says that that symbol '0v' is connected to a net with two different NetNames. It refers to the other symbol located on the upper right which is 'Vpp'. It tells me that I need to change the name or remove the symbol at all. I...

Hello, I am studying a schematic, and am not sure how this reset switch is supposed to work: I cannot find any other switch that uses this symbol, and it just looks like all of the pins are shorted to ground. I don't understand why/how this switch works on the actual board. Is anyone able to...

I was looking at a schematic and came across this symbol. I couldn't understand what it was or what it's being used for. I tried googling what I could. I found that G is generally used for generators and power supplies. I looked up symbols and didn't find anything close enough. Maybe this is old?

Hi everybody, Anyone has any idea of what this means ? Here's the complete schematics: It's a line amplifier, and it could be a linear Pot of Fader... I don't know. Thank you

Hi! I've been working on a school project, that is a guitar pedal (effects) using an arduino board. I've been using the EasyEDA site for designing the schematic. I would like to ask a more skilled/experienced person to go over my design and look for any flaws or mistakes. Any tips about it...

Hello, I am fairly new to electronics design (I have a mech e background), and am designing a board that requires dropping 12v to 5v with a large current requirement (up to 8A@5V). In a bid to save on BOM, I took a shot at creating my own design vs buying one off the shelf, using the...

Hello Everybody! I am trying to program/communicate with the CC2450 BLE IC, which is a transceiver/microcontroller. My computer is having trouble recognizing the device. It does not show up in Device Manager. I've tried the T.I. tools for trying to communicate with it. I've downloaded the BLE...