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Resistor
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Resistor Projects
Explore beginner-friendly projects using Resistor. Run them in the simulator, tweak the code, and learn step by step.
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IoTSim Editor
Sep 20, 2026
Blink an LED with an ATtiny85
Connect a red LED and a resistor to an ATtiny85 microcontroller and watch it blink on and off once per second. This is the first project everyone does with a new chip — simple, satisfying, and a solid foundation for everything else.
ATtiny85
LED
+2
