Public engineering log

Project folders.

Working documentation for builds in progress: the engineering question, operating theory, source files, unresolved risks, and the next test.

Open-source tools

Engineering utilities on GitHub

Public calculators and code maintained through the official TacticalCircuits GitHub account.

TC-GH-001

Standalone browser-based electrical engineering calculators for quick design checks and early-stage estimates.

The insulation and arc-over tool is for screening only. It does not establish standards compliance or replace engineering review and testing.

Included tools

TacticalCircuits/calculatorsUpdated 2026-05-01View repository

TC-001

Converting a preserved ESP32 wiring diagram into a reviewable schematic and PCB design package.

PCB designESP32

Active build

P02026-07-08

TC-002

Giving an orphaned toy car an open ESP-NOW remote, proportional controls, and a measured motor-drive system.

Motor controlESP-NOW

Planning

P02026-07-16

TC-003

A low-voltage experimental modem that sends measured digital packets through freshwater using piezoelectric transducers.

AcousticsSignal processing

Research

P02026-07-21

TC-004

A small low-voltage controller for safe, configurable fan duty cycles and predictable recovery after power loss.

Power switchingEmbedded timing

Incubating

P02026-06-03

TC-005

A ride-safe embedded sensor package for recording environmental exposure along a bicycle route.

Environmental sensingData logging

Incubating

P02026-06-15