TRICKY CIRCUIT — SIX TABLETOP EXPERIMENTS

Complete programs and editable original diagrams accompany the English articles.

code/schmitt_button_model.py — optional host RC/Schmitt mathematical model.
code/cd4017_model.py — optional host logic and oscillator arithmetic model.
code/bounded_log.py — host/Pi SQLite application (Python 3.11 or later).
code/dual_ds18b20.py — Pico MicroPython application, designed for the exact documented board/version.
code/mcp1700_budget.py — optional host regulator-load arithmetic calculator.
code/lm393b_hysteresis.py — optional host loaded-threshold/state calculator.

The images/ folder contains all twelve original PNG diagrams plus editable SVG originals.
No third-party firmware, semiconductor datasheets or compiled binaries are included.
Manufacturer references and connection lists are in research/.

Pi logger test: from this archive root, run
python3 -m unittest discover -s research/pi-bounded-log -p 'test_*.py' -v
It creates disposable temporary SQLite files. Use a separate new database for the reader experiment.
Do not put the experiment database in a cloud-synced or network folder.

The programs, calculations and simulated interfaces have existing host checks; none of these circuits
has been physically assembled or measured for these articles. Host checks do not prove a target build,
board execution, electrical safety, sensor accuracy, storage endurance or power-loss behavior.
Read the exact component/version/supply limits and full bench procedure in each article before wiring.
