TechCrate 001 — Railroad Crossing Signal
TechCrate 001 — Railroad Crossing SignalConfiguration: --
$20.99
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Build a railroad crossing signal with two red LEDs that flash in turn. Use a 555 timer, resistors and a capacitor to explore how electronic timing controls the lights.
Experiment kit contents
- 555 timer chip
- Red LEDs
- 47K resistor
- 470 ohm resistors
- 10µF capacitor
From your Starter Kit
Breadboard, 9V battery, Battery snap connector, Jumper wires.
Subscriber instructions PDF · Build video and customer files
Optional — go further
Optional: compare the timing resistor values with power disconnected, then watch how the flashing changes. The complete build and its checks work without a meter.
🎬 1080p Workbench Demonstration & Circuit Schematics
Watch step-by-step breadboard wiring, oscilloscope waveforms, and circuit verification for experiments in this series.
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Includes high-resolution IEEE schematic diagrams, breadboard layouts, and multimeter checkpoint tables.
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TechCrate Welcome & Quick Start GuideStep-by-step unboxing checklist & breadboard layout guide.
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Resistor Color Code Reference ChartQuickly decode resistor values using color bands.
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