🔥 SIH 2026: All 236 Problem Statements + Master PDF Released
Hardware Makers & ECE Students

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ESP32 • Arduino • Raspberry Pi • IoT • Hackathons

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BlinkNBuild Hardware Academy

Three complete courses : 24 volumes covering the whole path from your first always block to a GDSII file a foundry will accept. Real synthesizable RTL, hand-drawn timing diagrams, real tool reports, and the questions actually asked in VLSI interviews. Free, no signup, no paywall.

Course 01

Verilog & SystemVerilog Silicon Masterclass

From hardware concurrency and stratified event queues to FSMs, CDC, async FIFOs, STA timing closure, and 40 silicon interview problems.

11 Vols 52 Modules ~40h
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Course 02

FPGA Mastery: Vivado, Zynq & Bring-Up

Taking RTL to real silicon: LUT architecture, Vivado implementation, XDC timing constraints, BRAM inference, AXI4 protocols, and hardware debug.

7 Vols 35 Modules ~28h
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Course 03

ASIC & Physical Design (OpenLane / Sky130)

Complete RTL-to-GDSII flow: Sky130 PDK, Yosys synthesis, floorplanning, CTS, routing, RC extraction, and sign-off DRC/LVS on laptop-ready open tools.

6 Vols 30 Modules ~24h
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GATE ECE Portal

Solved questions across all eight subjects, every step shown.

Browse the Academy

Every course, syllabus and volume in one place.
// Portfolio

Featured Projects

Interact with our projects directly or check out the open-source hardware repositories below.

OLED Pixel Studio

Browser-based pixel art editor for SSD1306 OLED displays with instant Arduino C++ header array code export.

Browser Tool OLED Arduino
Live Preview

SchemFlow

Browser-based circuit diagram drafting tool using digital image overlays, perfect for documenting schematics in video tutorials.

Browser Tool Circuit Design
Live Preview
ESP32 Radar Detector Preview

DIY ESP32 Radar Detector

An ultrasonic sensor radar mapping project running on ESP32 with an interactive Processing GUI for real-time visualization.

ESP32 Hardware AI Processing GUI
Watch Tutorial
Autonomous Gas Leak Bot Preview

Autonomous Gas Leak Bot

An autonomous mobile robot designed and built in 24 hours to detect, navigate, and alert on gas leaks using ESP32 & sensors.

ESP32 Robotics Sensors
Watch Video

Serpentine Game

A modern HTML5 Canvas snake game with smooth controls, retro-neon visuals, grid-based movement, and dynamic score tracking.

Game HTML5 Canvas JavaScript
Play Game

Balloon Blaster

An interactive browser-based arcade game where players pop floating balloons to score points before they leave the screen.

Game CSS Keyframes JavaScript
Play Game
// Maker Speed

Hackathon Updates

Live competitions sorted by deadline : watch our YouTube video guides to get official registration links.

🔥 NEW · OCTOBER 2026 ₹50 Lakh+ Prizes · 13 Events

Top 12 Hardware & IoT Hackathons (October 2026)

Master breakdown covering IIT Kharagpur NSSC, MindSpark Robotica, IEEE Edge AI, Raspberry Pi RP2350 $20K bounty, and IoT sprints.

Watch Hardware Compilation
🔥 MEGA COMPILATION $300K+ Prize Pool · 40 Events

Top 40 Software & AI Hackathons (September 2026)

Full video breakdown covering 40 software, generative AI, Web3, and student hackathons with pinned registration links.

Watch 40 Hackathons Video
New hackathon dropped? We cover it. Subscribe to our channel →
// Digital Store & Cheatsheet Library

The BlinkNBuild Store

Verified, dense printable A4 master cheat sheets for silicon engineers, students, and makers.

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LAUNCH PROMO 100% OFF LIMITED TIME

Download All 5 Core ECE & VLSI Master Cheatsheets (86 Pages)

Direct PDF access to our verified cheat sheets for Verilog, Digital Electronics, FPGA, Embedded C/C++, and Placement Aptitude.

View Store & All 5 Guides
VLSI & Silicon RTL 13 Pages

Verilog & SystemVerilog Cheatsheet

Synthesizable RTL, blocking vs non-blocking rules, 3-always block FSM templates, CDC dual-flop synchronizers, setup/hold STA equations, and SVA assertions.

  • Synthesizable RTL
  • FSM Templates
  • CDC & STA
  • SVA Assertions
₹49 FREE
100% OFF
Download Free PDF (13 Pages)
Core Hardware 18 Pages

Digital Electronics Cheatsheet

Boolean algebra laws, 5-variable K-maps, adders, MUX trees, flip-flop excitation tables (SR, JK, D, T), synchronous counters, and static CMOS transistor sizing.

  • Boolean Laws
  • K-Map Minimization
  • Excitation Tables
  • CMOS Sizing
₹49 FREE
100% OFF
Download Free PDF (18 Pages)
FPGA & Vivado 23 Pages

FPGA Architecture & Vivado Guide

Internal CLB fabric, 6-input LUTs, DSP48 slices, Block RAM inference, XDC timing constraints, AXI4 bus protocols, and Vivado timing closure checklists.

  • 6-LUT Architecture
  • DSP48 & BRAM
  • XDC Constraints
  • AXI4 Handshakes
₹49 FREE
100% OFF
Download Free PDF (23 Pages)
Firmware 15 Pages

C & C++ for Embedded Systems

Pointer memory layouts, volatile and const register qualifiers, bit manipulation macros (mask, set, clear, toggle), and ISR interrupt handling architecture.

  • Pointer Arithmetic
  • Volatile Registers
  • Bit Manipulation
  • ISR Best Practices
₹39 FREE
100% OFF
Download Free PDF (15 Pages)
Placements 17 Pages

ECE Placement Aptitude Cheatsheet

Core semiconductor campus placement shortcuts: work & time, alligation cross, probability, clock/calendar math, and technical analytical interview puzzles.

  • Speed Math
  • Alligation Cross
  • Probability
  • Interview Puzzles
₹39 FREE
100% OFF
Download Free PDF (17 Pages)
// Maker Identity

Who We Are

BlinkNBuild is a maker channel documenting real-world embedded systems projects, hackathon journeys, and browser-based hardware tools : built by two ECE students who believe in learning by building. We demystify hardware and write clean code to solve real-world problems.

IoT & ESP32 Prototyping
Custom PCB & Circuit Design
Robotics & Automation
Computer Vision Integration
🏆

eYRC 2026 : 4th Place

Krishi Bot out of 544 teams nationwide

Sujan S

ESP32 & CV Developer
ESP32 RPi Computer Vision Vibe Coding

Nikhil A E

Circuit & Robotics Engineer
Arduino Robotics Circuit Design CAD