Signal Generator Ne555 Pulse Frequency Adjustable Module Square Wave Diy Kit
The NE555 Square Wave Signal Generator Module is a compact and versatile module based on the popular NE555 timer IC. It can be used to generate square wave signals for a wide variety of applications such as experimental development, driving stepper motor drivers, or providing adjustable clock pulses to microcontrollers and other circuits.
Specifications:
- Board Size: 3.5cm × 3.6cm
- Main Chip: NE555 timer IC
- Input Voltage: 5V to 15V DC
- 5V input → Output current approx. 15mA
- 12V input → Output current approx. 35mA
- Input Current: ≥ 100mA
- Output Amplitude: 4.2V V-PP to 11.4V V-PP (varies with input voltage)
- Maximum Output Current:
- ≥ 15mA @ 5V input (V-PP > 50%)
- ≥ 35mA @ 12V input (V-PP > 50%)
.jpg)
Advantages:
- Output LED indicator:
- Low signal → LED ON
- High signal → LED OFF
- Low frequency → LED flashes
- Continuously adjustable output frequency with selectable range (via jumper or switch):
- Low-frequency range: 1Hz ~ 50Hz
- Intermediate-frequency range: 50Hz ~ 1kHz
- High-frequency range: 1kHz ~ 10kHz
- Very high-frequency range: 10kHz ~ 200kHz
- Output frequency and duty cycle can be adjusted (not independently – adjusting one affects the other).
- Waveform frequency is calculated using:
T = 0.7 × (Ra + 2 × Rb) × C - Adjustable resistor values:
Ra, Rb: 0–10KΩ (potentiometers) - Capacitor values based on frequency range:
- LF: 0.001µF
- IF: 0.1µF
- HF: 1µF
- Very HF: 100µF
Important Note:
The duty cycle and frequency cannot be adjusted independently. Modifying the duty cycle will also change the frequency.
Applications:
- Used as a square wave signal generator for experimental development.
- Generates square wave signals to drive stepper motor drivers.
- Produces adjustable pulses for use with microcontrollers (MCUs).
- Generates pulses to control related circuits.
Waveform Demonstration:
Specifications:
- Board Size: 3.5cm × 3.6cm
- Main Chip: NE555 timer IC
- Input Voltage: 5V to 15V DC
- 5V input → Output current approx. 15mA
- 12V input → Output current approx. 35mA
- Input Current: ≥ 100mA
- Output Amplitude: 4.2V V-PP to 11.4V V-PP (varies with input voltage)
- Maximum Output Current:
- ≥ 15mA @ 5V input (V-PP > 50%)
- ≥ 35mA @ 12V input (V-PP > 50%)
Advantages:
- Output LED indicator:
- Low signal → LED ON
- High signal → LED OFF
- Low frequency → LED flashes
- Continuously adjustable output frequency with selectable range (via jumper or switch):
- Low-frequency range: 1Hz ~ 50Hz
- Intermediate-frequency range: 50Hz ~ 1kHz
- High-frequency range: 1kHz ~ 10kHz
- Very high-frequency range: 10kHz ~ 200kHz
- Output frequency and duty cycle can be adjusted (not independently – adjusting one affects the other).
- Waveform frequency is calculated using:
T = 0.7 × (Ra + 2 × Rb) × C - Adjustable resistor values:
Ra, Rb: 0–10KΩ (potentiometers) - Capacitor values based on frequency range:
- LF: 0.001µF
- IF: 0.1µF
- HF: 1µF
- Very HF: 100µF
Important Note:
The duty cycle and frequency cannot be adjusted independently. Modifying the duty cycle will also change the frequency.
Applications:
- Used as a square wave signal generator for experimental development.
- Generates square wave signals to drive stepper motor drivers.
- Produces adjustable pulses for use with microcontrollers (MCUs).
- Generates pulses to control related circuits.
Waveform Demonstration: