A timing violation, diagnosed and fixed — 0 violations at 2 GHz, 65% less power.

8 stages, from placement to timing analysis

A real RISC-V CPU, 31.7k instances, missing timing by 15 ps across 240 paths. Traced the worst path to one undersized cell, then closed all 240 violations: 8 upsized cells and 2 pin swaps, verified in post-repair STA.

A neural net, trained in Python and synthesized with hls4ml, classifies live ESP32 motion data right in the Zynq-7010's fabric, achieving ~150ns latency, 77.4% accuracy, and no accuracy loss from quantization.

Pure Verilog, with an FSM driving an ultrasonic sensor and streaming live distance readings over UART.

A 4-layer STM32G474RE board, 66.75 × 66.25 mm, in the NUCLEO-64 header layout, adding native USB-C with ESD protection, an MCP2562FD CAN-FD transceiver on FDCAN2, and an STDC14 debug connector for an external STLINK-V3. 0 ERC and DRC errors, with the USB pair routed for about 90 Ω.

A compact 2-layer STM32F103 board, 33.5 × 24.2 mm, USB-powered through a 3.3 V LDO, with a 16 MHz crystal, boot and reset switches, and SWD, SPI, and I2C accessible via headers.

A kWh meter with priority-based automatic load-shedding, built end to end with ESP32-based smart sockets, live power and cost readings, and the Despro Android app that controls them.

A solar-powered reactor making hydrogen and breaking down microplastics from seawater, built end to end with the reactor hardware and the FOTRIX Android app that controls it. National finalist, PIMNAS 38 — Indonesia's national student science competition.

Voice-controlled lighting on an ESP32, connected to a companion app over BLE. 3-person team.

Internship at PLN, Indonesia's national electricity utility — hands-on with substation SCADA, relay panels, and live control rooms.

Research assistant, Dr. Tomy Abuzairi's group, Universitas Indonesia, working across plasma generators for biomedical instrumentation, smart battery systems for renewable energy, and embedded systems.

The app behind PrioWatt. Per-socket control, priority-based load-shedding, usage analytics, and AI-driven savings tips.

Controls the FOTRIX reactor, with manual actuator and solar-tracker control, plus live and historical hydrogen readings.