1. పరిచయం
The DAOKAI NE555 Pulse Generator Module is a compact, single-channel signal output device designed for generating adjustable frequency square waves. Utilizing the versatile NE555 timer integrated circuit, this module is suitable for various applications including microcontroller unit (MCU) learning, electronic competitions, and product development. It provides a stable square wave output with an approximate 50% duty cycle, and its frequency can be easily adjusted via an onboard potentiometer.
This manual provides detailed instructions for the setup, operation, and maintenance of your NE555 Pulse Generator Module.

చిత్రం 1.1: ముగిసిందిview of the DAOKAI NE555 Pulse Generator Modules and included Dupont cable.
2. ప్యాకేజీ విషయాలు
ప్యాకేజీని తెరిచిన తర్వాత, అన్ని భాగాలు ఉన్నాయని మరియు దెబ్బతినకుండా ఉన్నాయని ధృవీకరించండి:
- 5 x NE555 Pulse Generator Modules
- 1 x 15-pin Female to Male Dupont Cable

Image 2.1: Packaging of the NE555 Pulse Generator Modules and Dupont cable. The label indicates model WE-DA-108.
3. స్పెసిఫికేషన్లు
Refer to the following technical specifications for the NE555 Pulse Generator Module:
- చిప్: Onboard NE555 timer IC
- వర్కింగ్ వాల్యూమ్tage: 5V నుండి 12V DC
- అవుట్పుట్ సిగ్నల్: Single-channel square wave
- Output Duty Cycle: సుమారు 50%
- అవుట్పుట్ ఫ్రీక్వెన్సీ రేంజ్: 5Hz to 2KHz (adjustable via potentiometer; can be modified by changing capacitor C1)
- అవుట్పుట్ కరెంట్: 225 mA (గరిష్టం)
- అవుట్పుట్ వాల్యూమ్tage: ఇన్పుట్ వాల్యూమ్కు సమానంtage
- రైజ్/ఫాల్ టైమ్: 100 ns
- కొలతలు (L x W x H): 25mm x 13mm x 12mm (0.98in x 0.51in x 0.47in)

Image 3.1: Key parameters of the NE555 Pulse Generator Module.

Image 3.2: Physical dimensions of the NE555 Pulse Generator Module.
4. సెటప్ మరియు కనెక్షన్లు
The module features a simple 3-pin header for power and signal output. Follow these steps for proper connection:
- పిన్లను గుర్తించండి: The module has three pins labeled GND, OUT, and VCC.
- పవర్ కనెక్ట్ చేయండి:
- కనెక్ట్ చేయండి VCC pin to your DC power supply's positive (+) terminal (5V to 12V).
- కనెక్ట్ చేయండి GND pin to your DC power supply's negative (-) terminal (ground).
- అవుట్పుట్ను కనెక్ట్ చేయండి: కనెక్ట్ చేయండి బయటకు pin to the input of the device or circuit you wish to drive with the pulse signal.

Image 4.1: Pin description and connection diagram for the NE555 Pulse Generator Module.
విద్యుత్ సరఫరా వాల్యూమ్ అని నిర్ధారించుకోండిtage is within the specified range of 5V to 12V to prevent damage to the module.
5. ఆపరేటింగ్ సూచనలు
Once the module is correctly powered, it will begin generating a square wave signal. The frequency of this signal can be adjusted:
- ఫ్రీక్వెన్సీ సర్దుబాటు: The module features an onboard adjustable resistor (potentiometer). Use a small screwdriver to carefully turn the potentiometer. Turning it clockwise or counter-clockwise will change the resistance value, thereby adjusting the output frequency within the 5Hz to 2KHz range.
- అవుట్పుట్ సిగ్నల్: The output is a single-channel square wave with an approximate 50% duty cycle. The output voltage will match the input VCC voltage.
- Frequency Range Modification: For applications requiring a different frequency range, the capacitor C1 on the module can be replaced with a different value. Changing C1 will alter the overall frequency range of the oscillator.

Image 5.1: Detail of the adjustable resistor for frequency control and the NE555 timer pinout.

Image 5.2: Circuit diagram of the NE555 Pulse Generator Module.
6. నిర్వహణ
The NE555 Pulse Generator Module is a robust electronic component designed for long-term use with minimal maintenance. To ensure optimal performance and longevity:
- శుభ్రముగా ఉంచు: Avoid dust, dirt, and moisture accumulation on the module. If cleaning is necessary, use a soft, dry brush or a cloth lightly dampఐసోప్రొపైల్ ఆల్కహాల్తో కలుపుతారు.
- జాగ్రత్తగా నిర్వహించండి: Avoid applying excessive force to the components, especially the potentiometer and pins.
- నిల్వ: Store the modules in a dry, cool environment, away from direct sunlight and extreme temperatures.
- విద్యుత్ సరఫరా: పేర్కొన్న వాల్యూమ్ లోపల ఎల్లప్పుడూ స్థిరమైన విద్యుత్ సరఫరాను ఉపయోగించండి.tagఇ పరిధి (5V-12V).
7. ట్రబుల్షూటింగ్
If you encounter issues with your NE555 Pulse Generator Module, consider the following troubleshooting steps:
- అవుట్పుట్ సిగ్నల్ లేదు:
- Verify that the module is receiving power within the 5V-12V range.
- Check all connections (VCC, GND, OUT) for proper contact and polarity.
- Ensure the power indicator LED on the module is illuminated.
- Unstable or Incorrect Frequency:
- Adjust the onboard potentiometer slowly to see if the frequency changes.
- Ensure your power supply is stable and not fluctuating. Unstable power can lead to unstable output.
- If the desired frequency range is not achievable, consider replacing capacitor C1 with a different value. For example, a larger capacitance will generally result in lower frequencies.
- Module Gets Hot:
- ఇన్పుట్ వాల్యూమ్ అని ధృవీకరించండిtage is within the 5V-12V range. Voltages significantly higher than 12V can cause overheating.
- Ensure the module is not drawing excessive current due to a short circuit in the connected load.
- While the NE555 can operate with a 9V battery, ensure the battery can provide sufficient current without significant voltage drop, especially under load.
- Output Frequency Range Does Not Match Expectations (e.g., 5-2KHz vs. 2-5KHz):
- The specified range is 5Hz to 2KHz. If your module operates outside this, verify the potentiometer is fully functional and consider the possibility of component tolerance variations.
- As mentioned, changing capacitor C1 is the primary method to shift the overall frequency range.
8 అప్లికేషన్లు
The DAOKAI NE555 Pulse Generator Module is versatile and can be used in various electronic projects and educational settings:
- Microcontroller Unit (MCU) learning and experimentation
- Electronic competition projects
- Product development and prototyping
- Generating clock signals for digital circuits
- Driving stepper motors (with appropriate driver circuitry)
- Timing circuits and delay generation

చిత్రం 8.1: ఉదాamples of applications for the NE555 Pulse Generator Module.
9. వారంటీ మరియు మద్దతు
This product is manufactured by DAOKAI. Specific warranty details are not provided in the product information. For any product-related inquiries or technical support, please refer to the seller or the platform where the product was purchased. Keep your purchase records for reference.