Practical case: Light-controlled oscillator
Level: Medium. Design an astable NE555 oscillator where an LDR modulates the output frequency based on ambient light.
Level: Medium. Design an astable NE555 oscillator where an LDR modulates the output frequency based on ambient light.
Level: Medium – Use a very low-value resistor to indirectly measure a DC load’s current via voltage drop.
Level: Medium — Build a stable shadow detector with visual indication and low false triggering.
Level: Medium — Calculate and verify a base resistor to switch an NPN transistor safely from a logic output.
Master Digital Electronics by building a 2-way switch using the universal NAND gate. Synthesize XOR logic to toggle LED states based on dual input signals.
Master Digital Electronics by building a NAND gate SR latch to eliminate switch noise. Ensure clean signals and verify stable memory states with LEDs.