Projects / Binary Logic Gates Board
Binary Logic Gates Board
Build a keepable logic trainer on a laser-cut 3mm birch plywood faceplate: five toggle switches, three LEDs, and real 74HC08 / 74HC32 / 74HC04 chips teaching AND, OR, and NOT. Optional Arduino verifies truth tables over Serial.
$7 Circuits
Digital guide + cut files + BOM + code · Parts sourced separately · Ages 8–14 with adult help
ActuationSwitches + LEDs
Structure3mm birch faceplate
ControllerArduino optional
Build time2–4 hours
Skill levelBeginner+
Ages8+
Pack contents
- Build guide: faceplate layout, gate wiring, pull-downs, LED current limits
- SVG cut files for faceplate and stand
- First principles: Boolean algebra, truth tables, voltage levels
- Optional Arduino checker that reads the real gate outputs and grades all 10 truth-table rows
- Verified BOM (~$20–47 hardware with your own Arduino; $28–67 buying a Uno)
Typical hardware cost
Default structure is laser-cut birch plywood with real fasteners and hobby electronics—honest BOM, not mystery modules.
- ~$20–47 in typical parts with your own Arduino ($28–67 buying a Uno)
- Digital pack price ≠ hardware
The $7 pack is the digital guide + cut files + BOM + lessons + code, plus printable Builder's Corner build journal pages. Hardware sourced separately — see Where to get kit materials.
Questions? Email us at lance.haney@gmail.com.
Pricing
- Home / Personal license $7
- Classroom license $29 — 1 teacher, up to 30 studentsOne $29 Classroom license covers one group of up to 30 students. Each additional group needs another license.
- Build materials available at cost + 10% — email for a quote
Learning outcomes
- Wire AND, OR, and NOT from switches and LEDs on a birch board
- Fill and verify truth tables for each gate by hand
- Explain LED current limiting and why CMOS inputs must never float
- Optionally use Arduino as an automated truth-table checker