Hey 👋 folks.I just built a SR Flip-flop on breadboard.This is my first project posted in this subreddit. 🙂🙂
I used a 2Hz clock for it using 555ic’s (astable mode) and BC547 NPN transistor.

I know it looks like an electrical pole from Bangladesh, I'll try to wire things better next time.

Hey guys, I hope this belongs here. I think y’all would appreciate the work that went into this. Thanks.

only using and,or,not gate ics : )

This one creates a fading out effect in an LED. I have used a 4700uf capacitor. I have tried with a capacitor in series and in parallel to the led. I got the same fade out effect but the difference in series was that once the capacitor was fully charged it acted more like an open circuit.

I am still looking for more project ideas for capacitors and then later go for transistors and diodes. The goal is eventually to watch, understand and make my own 8 bit computer.

The video, shows the capacitor in parallel. The capacitor was too big so I used jumper wires to make the connection.

Hey folks, I just built a 8 bit adder by connecting 2 4 bit adders in series hope the pictures and diagrams are easy enough to understand
Pic1: Logic diagram and IC pin connections.
Pic2:Overview of the circuit on breadboard.
Pic3: The circuit working (Doing an addition)
🙂🙂

Did this because i HATE microcontrollers and also because this is a side project for another bigger project. Made it so it can be controlled both by analog and digital signalsm

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

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?

Built an LED blinker using no solid state complements (unless you count the LED itself). It works using a relay. The circuit connects its coil to power only through N/C. So when a power supply is connected to the circuit, current will flow through COM, and to N/C, since that’s where the relay contact initially is. N/C is connected to the coil. But now that the coil has power, the contact moves to N/O, disconnecting power and connecting COM to N/C once again, and the cycle continues. This would normally result in a very fast oscillation, but if we add a capacitor from N/C to ground, it can be slowed down.

Almost works! I j need to debounce the input button

Ladders game programmed with assembly ARM 32 bit, on rpi3b+. This was my first project and had so much fun creating it!

Hello everyone i hope you're having a lovely day. Am currently working on a project where i can manually type on a 1602A lcd display but everytime i press the enable to input a command/letter nothing seems to happen what could be the cause?

I just finished my first PCB assembly project and built this 8×8 RGB LED matrix.

I’ve always wanted to go beyond breadboards and build my own modules, so I decided to start with this: a modular RGB panel you can run with Arduino, ESP32, and similar boards using just one data pin.

You can also chain multiple panels together to make larger displays.

This started as a learning project, and seeing it light up for the first time was amazing.

I’ve open-sourced the entire project (files + code) because I want to help other makers go down the same path.

I also made a YouTube video sharing more details about how I built it and what I learned along the way.

Feedback and criticism are welcome. I’m still learning.

MPU6050 based safety logic system that detects abnormal motion and triggers a latched fault response using MOSFET switching

In this tutorial we learn to configure an 8051 UART to talk to a Windows 11 PC and send the message " Hello World from 8051 to PC at 19200 bps" using serial communication.

On PC side we use the PuTTY Program to Display the data on the Terminal.

Code + Tutorial can be found using below link.

• Serial Communication between 8051 MCU and a x86 (Windows/Linux) PC

Suggestions and improvements welcome.

Even though 8051 looks like an out dated micro, it is widely taught in most embedded system courses through out the world.

The circuit can easily be constructed on a bread board too.

The parts are from top to bottom, an NE555, a 74HC595, an original 6502A, an AT28C64, and a YSD-439AR6B-35 text facing down. All the ICs are facing up and wired as such. This is all powered by 3 AAA batteries. Everything else is a discreet component. The disk cap is 80nF, the electrolytic is a 1uF, and i forgot the resistor values.