Relevant experience (Digital Circuitry)
- AFE & conversion: ~25 kHz 3rd-order AA, pseudo-diff routing, 14-bit SAR ADC; DAC anti-imaging.
- MCUs & interfaces (C): PIC18F4321 / STM32F103—state machines, timers/interrupts; SPI/I²C/UART; 16×2 LCD status/debug.
- EDA & docs: KiCad/Altium, ERC/DRC, stackup/clearances; DFM-aware Gerbers/BOM/assembly package.
- Test & analysis: Oscilloscope + logic analyzer; function/waveform generator; LTspice AC/transient; MATLAB FFT.
Relevant experience (Embedded/DSP)
- WBGT firmware (PIC18F4321, USB-powered): DHT11, BH1750 via bit-banged I²C, and analog wind (ADC) → WBGT estimate & risk categories; fixed-point compute, on-LCD debug.
- Linux foundations (Pi 5 · Ubuntu · coursework): processes vs threads (pthreads), sync primitives, sockets—OS concepts for embedded apps.
- DSP & measurement: Butterworth AA design (~25 kHz), sampling strategy, FFT-based evaluation for mixed-signal work.
- ML exposure: ViT + DeepLabv3 segmentation; reproducible training pipeline and ablations (PyTorch/Colab).
Core Electrical Engineering Skills
- Circuits: op-amps, filters, level shifting, ADC/DAC interfacing; power (buck → LDO 3.3 V), ESD/TVS, grounding.
- Embedded C/C++: PIC18F4321, STM32F103; SPI/I²C/UART, timers/interrupts, FSMs; 16×2 LCD UI.
- Digital/RTL (labs): Verilog FSMs, bin→BCD (double-dabble), basic testbenches; Vivado synth/constraints.
- Test & validation: oscilloscope, logic analyzer, function/waveform gen, DMM; structured bring-up notes.
- EDA & tooling: KiCad/Altium/OrCAD, LTspice, MATLAB, Python/PyTorch, STM32CubeIDE, MPLAB X, Git.
- Domains: audio-centric embedded, mixed-signal DAQ, sensing/IoT, controls.
