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A collection of electronics projects spanning environmental sensors, biomedical devices, RF systems, and analog circuits.
Designed, programmed, and deployed user-friendly soil moisture sensors at under $8.00 per unit. These sensors help reduce overwatering, increase crop yield, and promote environmental sustainability through smart irrigation. Currently on version 5.
Arduino-based CO2, temperature, and humidity monitor with custom 3D printed encasing for real-time environmental monitoring.
Engineered discrete transistor-based superhet architecture with mixer, oscillator, and IF stages for radio frequency reception.
Built and improved specifications on a triangle to sine wave converter circuit, optimizing for low distortion and stable output.
Built and iterated on a pulse monitor circuit through two versions, optimizing heartbeat detection accuracy and signal processing.
3D-printed robotic hand using EMG board and servo motors to replicate human hand movements for affordable prosthetics applications.
Built and tested different amplifier configurations including common emitter, common base, and emitter follower stages.
Built and tested a transconductance amplifier (voltage-to-current converter) for precision signal processing applications.
Built and tested a feedback amplifier with positive feedback current source load and super alpha amplifier configuration.
Built and tested a recreation of HP's famous Wien bridge oscillator invention, generating stable sine wave outputs.
Built and tested a Class B push-pull amplifier for audio signal amplification with improved efficiency over Class A designs.
Built and tested a 1.5V LED blinker using a CD4001-based oscillator to drive a BJT switch and ferrite-core step-up transformer.
Designed and built custom conductivity and temperature sensors for Stanford S4 Lab's expendable ocean profiler, collecting climate data in Antarctic circumpolar waters. Also developed Python data analysis tools.
Built and hacked a capacitive touch sensor using the CD4017 decade counter IC for custom touch-sensitive interfaces.
Designed, printed, and built a motion-sensing soap dispenser with DC brushless motor, Arduino UNO, and custom 3D printed case for wall-mounted, autonomous, touchless liquid soap dispensing.
Designed and built a solar-powered charger providing 5V at 2A to an iPhone using an AC to DC converter, voltage regulator, Li-ion battery, and solar panel for off-grid charging.