Logic Gates Board — $25 (was $35)
A hands-on educational PCB featuring AND, OR, NOT, NAND, NOR, XOR, and XNOR gates with real-time LED visualization and silk-screened truth tables. No programming or soldering required — powered by 2×AAA batteries. Flip a switch, see the output LED respond instantly, and compare against the truth table printed right on the board.
- Complete Boolean operator set: AND (∧), OR (∨), NOT (¬), NAND (↑), NOR (↓), XOR (⊕), XNOR (⊙)
- Physical toggle switches with satisfying tactile click
- High-brightness 3mm yellow LEDs for input and output states
- 74HC-series CMOS chips — industry-standard logic family
- Silk-screened truth tables and logic symbols on matte black 150mm × 100mm PCB
- Turn-on animation sequence when powered
In stock — buy on Tindie, ships worldwide. Every gate is explained in the free Logic Wiki. Ready for clocks, counters, and memory? Step up to the Logic Trainer.