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Breadboard Battle 2026 – Challenges 04–07 🔧⚡ In this video, we build and test four exciting hardware challenges: Dark-Activated Automatic Switch [A] Constant-Current LED Limiter [A] AND Gate Truth Table Verifier [B] OR Gate Using NAND Gates [B] A hands-on circuit-building challenge focused on design, testing, troubleshooting, and practical electronics skills. Breadboard Battle 2026 Build It. Test It. Win It. TCEA – Department of ECE #BreadboardBattle2026 #Electronics #CircuitDesign #TCEA #ECE #DigitalElectronics #AnalogElectronics