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Build a smart parking system with this innovative circuit. Trigger alerts with LEDs, indicating distances from 6cm to 20cm. This circuit, utilizing an infra-red level detector, provides visual feedback for precise parking assistance, adaptable for various applications.... [read more]

Build your own precise battery tester and unlock the secrets of voltage measurement with this innovative circuit. Discover how to create a reliable system for testing batteries with a constant current load, ensuring accurate results and saving you money.... [read more]

Build a simple lie detector circuit and unlock the secrets of truth with this 33K resistor based design. This easy-to-assemble project empowers you to measure skin resistance and reveal deception, inspiring you to build innovative solutions for truth detection.... [read more]

Build stunning RC oscillators using the ultra-fast AD8099 opamp! This project delivers a stable 108 MHz VHF FM signal with adjustable frequency and impressive output power, perfect for experimenting with radio design.... [read more]

Unlock extended range IR communication with this circuit design, boosting signal power fourfold and utilizing a laser pointer for maximum reach. This innovative design, featuring an IR laser and a 38 kHz frequency modulator, delivers a powerful, directed beam for reliable communication, perfect for building your own advanced remote controls.... [read more]

Unleash the power of 12VAC with this innovative DC to DC converter, generating a robust 40mA output for up to 200 hours on standard alkaline batteries. Maximize your low-power applications and explore higher voltages with a simple adjustment.... [read more]