NE555 Pulse Frequency Module
Key Specifications
- Main Chip: NE555 Timer IC
- Input Voltage: 5V to 15V DC (some variations 4.5V-12V)
- Input Current: >= 100mA
- Output Amplitude: Varies with input (e.g., 4.2V to 11.4V Peak-to-Peak)
- Max Output Current: ~15mA (at 5V input), ~35mA (at 12V input)
- Output Signal: Single-channel square wave
- Frequency Range: Selectable bands (e.g., 1Hz-200kHz), adjustable via onboard pot
- Duty Cycle: Adjustable, but not independently of frequency (adjusting one affects the other)
- Indicators: Power LED, output status LED (flashes at low freq, on/off for level)
- Board Size: Small, e.g., ~31mm x 22mm
Common Use Cases
- Clock source for microcontrollers (MCUs)
- Tone generation
- Stepper motor control
- General square wave/pulse generation
