ENTRY 01Analog circuits
Built & validated in the labDiscrete operational amplifier
A four-stage transistor-level lab build, from the push-pull output back to the differential input.
2 files to exploreOpen entry
The working archive
Every circuit.
Every next step.
My lab work, board designs, prototypes, and future build plans in one place. Open the schematics, follow the progress, or dig into the files.
Meet the person behind the projects3 project records1 reference + 3 build plans38 repository files
ENTRY 02PCB design
Schematic & PCB layoutSpO₂ monitor PCB
A two-layer KiCad design connecting an Arduino Nano, MAX30102 optical sensor module, and SSD1306 display.
12 files to exploreOpen entry
ENTRY 03Embedded hardware
Breadboard built · PCB v1 designedTraffic-light controller
An Arduino breadboard prototype and a separate Nano-based PCB design with traffic LEDs, a countdown display, and a pedestrian input.
21 files to exploreOpen entry
ENTRY 04Learning notes
Learning / referenceESP32-CAM learning notes
A place to study camera bring-up, image streaming, and embedded debugging before building my own documented version.
Learning planOpen entry
ENTRY 05PCB design
Planned · not startedSensor signal-conditioning PCB
A proposed analog front end with selectable gain, low-pass filtering, and a documented path to an ADC.
Build brief & test planOpen entry
ENTRY 06Digital design
Planned · not startedUART capture peripheral in RTL
An original receive block with defined timing, a 16-entry FIFO, and tests for framing errors, overflow, and reset.
Build brief & test planOpen entry
ENTRY 07Embedded hardware
Planned · not startedStockroom RFID check-in prototype
An independent controller concept that separates reader events, accepted check-ins, durable records, and recovery.
Build brief & test planOpen entry
Open the working files
Repository & profile notes3
Source files and repository notes are preserved as a project record. Notes may describe intended behavior. See the project stages above for what was built and tested.
Imported from my three public GitHub repositories on September 8, 2026. The download includes the repository licenses. Photo location metadata is removed from website copies. File manifest ↓