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๐ Logic gates are the foundation of digital circuits, processors, memory units, and embedded systems. Mastering these basics strengthens your core knowledge in Digital Electronics.
๐ท Logic Gates โ Symbols, Boolean Expressions & Truth Tables ๐ท
Logic gates are the fundamental building blocks of digital electronics. They operate on binary inputs (0 and 1) and produce a logical output. Understanding their symbols, Boolean expressions, and truth tables is essential for every ECE student.
๐น 1. AND Gate
Symbol: (AND symbol)
Boolean Expression: Y = A ยท B
Truth Table:
A | B | Y
0 | 0 | 0
0 | 1 | 0
1 | 0 | 0
1 | 1 | 1
๐น 2. OR Gate
Symbol: (OR symbol)
Boolean Expression: Y = A + B
Truth Table:
A | B | Y
0 | 0 | 0
0 | 1 | 1
1 | 0 | 1
1 | 1 | 1
๐น 3. NOT Gate
Symbol: (Triangle with bubble)
Boolean Expression: Y = Aฬ
Truth Table:
A | Y
0 | 1
1 | 0
๐น 4. NAND Gate
Symbol: (AND with bubble)
Boolean Expression: Y = (A ยท B)ฬ
Truth Table:
A | B | Y
0 | 0 | 1
0 | 1 | 1
1 | 0 | 1
1 | 1 | 0
๐น 5. NOR Gate
Symbol: (OR with bubble)
Boolean Expression: Y = (A + B)ฬ
Truth Table:
A | B | Y
0 | 0 | 1
0 | 1 | 0
1 | 0 | 0
1 | 1 | 0
๐น 6. XOR Gate
Symbol: (OR with extra curved line)
Boolean Expression: Y = A โ B
Truth Table:
A | B | Y
0 | 0 | 0
0 | 1 | 1
1 | 0 | 1
1 | 1 | 0
๐น 7. XNOR Gate
Symbol: (XOR with bubble)
Boolean Expression: Y = (A โ B)ฬ
or Y = A โ B
Truth Table:
A | B | Y
0 | 0 | 1
0 | 1 | 0
1 | 0 | 0
1 | 1 | 1
Find the wrong in this picture
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#logicgates #digitalelectronics #vlsi #education
Best decision ever. Started in IT, did Comp Sci, got out focused on Software Engineering and Embedded Systems. My day to day now consists of software, cyber, system admin, and networking tasks I love being a Principal Systems Engineer working overseas.
Comment "LIST", I'll send you my full top tech certification tier list for 2026.
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Building a Laser Security Alarm๐จwith Embedr AI IDE.
Website link ๐
https://embedr.app
#electronics
#Arduino
#ArduinoNano
#EmbeddedSystems
#DIYElectronics
DIYProjects
IoT
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Embedr
Robot Eyes on OLED Display | ESP32 AI Face
#cozmo #cozmohome #ai #roboteye #embeddedsystems
From powering your smartphone to controlling industrial machines โ Integrated Circuits (ICs) are the real brains behind modern electronics.
Hereโs a clean breakdown of the most important IC types youโll encounter:
๐ง Brain & Control
Microprocessor (CPU) โ The powerhouse (Core i7, etc.)
Microcontroller โ Compact brain for embedded systems (Arduino, STM32)
๐ Signal & Amplification
Operational Amplifier (Op-Amp) โ High-gain voltage amplifier
Comparator โ Compares two voltages
Timer IC (555) โ The legendary all-rounder for timing & pulses
๐ Converters
Analog-to-Digital (ADC) โ Converts real-world signals to digital
Digital-to-Analog (DAC) โ Converts digital data back to analog
โก Power & Drive
Voltage Regulator โ Keeps constant voltage
Motor Driver IC โ Controls speed & direction of motors
๐พ Memory & Logic
Memory IC (RAM/EEPROM) โ Data storage
Logic Gates โ Building blocks of digital logic
๐ Interface
Sensor Interface IC โ Connects sensors to microcontrollers
Which of these ICs do you work with the most in your projects?
Drop your answer below ๐
๐ฆ Microcontroller
๐ง Op-Amp
๐ฅ Motor Driver
๐ฉ ADC/DAC
๐จ Others
#vlsi #semiconductorindustry #semiconductor #integratedcircuit
Today I completed the coding part of the robot and prepared the logic for line detection using IR sensors. The program controls the motors through the motor driver so the robot can follow the path based on the sensor input.
However, during testing I found that the USB port of my Arduino Nano is not working properly. Instead of stopping the project, I decided to program the Nano using ISP (In-System Programming). This is a useful method when the USB interface is damaged or not responding.
Projects like this always include small challenges, but solving them is part of learning electronics and robotics. Troubleshooting hardware and finding alternative solutions is what actually builds real engineering skills.
Next step will be successfully uploading the code and testing the robot on the track. Stay tuned for the movement test ๐
#LineFollowingRobot #RoboticsEngineering #ArduinoProjects #EmbeddedSystems #ElectronicsProjects
๐ Build a mini drone ๐ธ
#drone #esp32 #embeddedsystems #electronics
#electronicsengineering
Droneโ๏ธ UFOโ
๏ธ
๐ Cloud Controlled Car | Day 5 โ in collaboration with @atumxofficial
I built a car you can control from anywhere in the world ๐ and this is the real-world test.
I completed the hardware by mounting motor drivers, fixing connections, powering it up, and adding headlights. For control, I used MQTT with HiveMQ and uploaded the code to the Superboard (ESP32-S3 based). I also built a web controller, so now I can drive it using WASD keys like a game ๐ฎ.
For camera and internet, I mounted an old smartphone on a gimbal, turning it into a simple FPV-style setup. The outdoor test worked well, but I noticed some network latency (4G) and minor chassis issues, which Iโll improve next.
This project combines ESP32, Arduino, IoT, robotics, and embedded systems, perfect for engineering students, makers, and hackathon builds.
Big thanks to @atumxofficial for sponsoring the Superboard and supporting this project ๐
#esp32 #arduino #iot #robotics #electronics engineering engineeringstudent
Building robots, embedded systems & 3D printed stuff.
This is teleoperation โ I control every movement.
Next step: training it to do this on its own.
Follow if youโre into real robotics.
#robotics #robot #ai #building #3dprinting
An 8 year old developer has created an AI powered tool that can program ESP32 microcontroller boards directly through Telegram messages. The system allows users to send simple text commands through the messaging app, which the AI then converts into firmware code and uploads to the ESP32 device automatically.
The project demonstrates how artificial intelligence and messaging platforms can simplify hardware development by removing complex coding steps. By allowing users to control and program IoT devices through everyday chat interfaces, tools like this could make electronics and embedded systems far more accessible to beginners and young innovators.
#ArtificialIntelligence #IoT #ESP32 #Coding #Innovation
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Call to Action (CTA):
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Video Credit: @derinmotiontech
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