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    LM358 Duty And Frequency Adjustable Square Wave Signal Generator Robotics Bangladesh
    • LM358 Duty And Frequency Adjustable Square Wave Signal Generator Robotics Bangladesh
    • LM358 Duty And Frequency Adjustable Square Wave Signal Generator Robotics Bangladesh

    LM358 Duty And Frequency Adjustable Square Wave Signal Generator

    RBD-3320

    • LM358-based square wave generator with adjustable duty cycle and frequency
    • Wide frequency range (0.07Hz–200kHz) suitable for multiple electronic applications
    • LED indicator provides real-time output signal status
    • High output drive current (up to 500mA) for powering small relays and motors
    • Four selectable frequency levels for precise tuning and waveform generation
    • Ideal for microcontroller triggering, motor control, and circuit testing
    BDT 350
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    Quantity
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    18 Items

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    18 items in stock
    Description

    The LM358 Duty and Frequency Adjustable Square Wave Signal Generator is a versatile and compact signal generation module designed for various electronics, testing, and automation applications. Built around the reliable LM358 operational amplifier, this module allows users to generate adjustable square wave signals with precise control over both duty cycle and frequency. Its frequency range of 0.07Hz to 200kHz makes it suitable for low-frequency timing signals as well as high-frequency pulse applications. The onboard LED indicator flashes in sync with the output signal, providing easy visual monitoring. Users can select between four frequency levels for fine-tuned adjustment and output customization. Capable of delivering up to 500mA output current through a transistor driver, it can directly power small motors, relays, or external circuits. With simple screw terminal connections, this module is an excellent tool for engineers, students, and hobbyists working with waveform generation, PWM control, and circuit experimentation. Featured By RoboticsBD.

    Product Images are shown for illustrative purposes only and may differ from the actual product.

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    Features:

    1. Adjustable Duty Cycle & Frequency: Provides full control over output waveform parameters for customized signal generation.

    2. Wide Frequency Range: Covers 0.07Hz–200kHz, suitable for timing, control, and signal applications.

    3. Visual Output Indication: Built-in LED indicator shows output signal status in real time.

    4. High Output Current Drive: 9012 transistor driver allows up to 500mA current output.

    5. Stable LM358 Core: Ensures reliable, consistent, and noise-free waveform performance.

    6. Four-Level Frequency Selection: Enables coarse and fine adjustments for precision tuning.

    7. Easy Installation: Screw terminals and compact PCB make integration quick and user-friendly.

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    Applications:

    1. Signal and Waveform Testing: Ideal for testing circuit responses to different frequencies and duty cycles.

    2. PWM Control: Can be used to drive LED brightness, motor speed, or servo pulse control.

    3. Microcontroller Triggering: Generates timing and pulse signals for logic and control applications.

    4. Motor and Relay Control: Provides adjustable pulse control for switching and automation.

    5. Educational and Development Projects: Excellent for learning waveform principles and circuit design.

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    General Specifications
    Main ChipLM358 Operational Amplifier
    Input Voltage5V – 15V DC
    Input Current≥ 100mA
    Output Level4.2V Vpp – 11.4V Vpp
    Output CurrentUp to 500mA (via 9012 transistor driver)
    Frequency Range0.07Hz – 200kHz
    Duty Cycle Adjustment0% – 100%
    Output WaveformSquare Wave
    Output IndicatorLED (blinks according to frequency)
    Frequency Selection4 selectable levels
    ConnectionsScrew terminal blocks
    Board SizeCompact and lightweight design
    Shipment Weight0.010 kg
    Shipment Dimensions4 × 3 × 2 cm

    Please allow 5% measuring deviation due to manual measurement.

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    Package Includes:

    1 x LM358 Duty And Frequency Adjustable Square Wave Signal Generator

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    Product Details
    RBD-3320
    18 Items

    Specific References

    EAN13
    3320
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    4x4 Micro Switch Matrix Keypad with 16 tactile push buttons for digital input. 8-pin interface (4 rows × 4 columns) for efficient and simple wiring Pre-soldered pin headers for direct connection to Arduino, ESP32, or Raspberry Pi. Durable microswitch buttons ensure reliable and long-term use. Operates at 3.3V–5V, compatible with most microcontrollers....
    BDT 200
    BDT 200 tax incl.
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    BDT 200 tax excl.
    BDT 200 tax incl.
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    Hi-Link LD2420 24GHz Radar Sensor Module Kit Combo Robotics Bangladesh

    Reference: RBD-3223

    Brand: Hi-Link

    Hi-Link LD2420 24GHz Radar Sensor Module Kit Combo

    (0)
    Hi-Link LD2420 24GHz FMCW Radar Sensor Kit Combo for advanced human presence detection. Detects both motion and stationary targets with high precision and reliability. Includes sensor module and interface accessories for ready-to-use integration. Detection range: up to 8m (wall-mounted) or 5m (ceiling-mounted). UART + digital output for flexible...
    BDT 950
    BDT 950 tax incl.
    BDT 950 tax excl.
    BDT 950 tax excl.
    BDT 950 tax incl.
    BDT 950 tax incl.
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    BDT 950 tax excl.
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    LD3320 Speech Recognition Module for Nonspecific Human Speech Robotics Bangladesh

    Reference: RBD-3189

    LD3320 Speech Recognition Module for Nonspecific Human Speech

    (0)
    Summary (Bullet list): LD3320 Speech Recognition Module supports nonspecific human speech without pre-training. Recognizes natural language commands in multiple languages. Allows up to 50 dynamically editable keywords for real-time customization. Equipped with microphone input and speaker/headphone output for full audio handling. Communicates via SPI...
    BDT 2,250
    BDT 2,250 tax incl.
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    BDT 2,250 tax excl.
    BDT 2,250 tax incl.
    BDT 2,250 tax incl.
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    SW-18010P Vibration Sensor Module Robotics Bangladesh SW-18010P Vibration Sensor Module Robotics Bangladesh

    Reference: RBD-3281

    SW-18010P Vibration Sensor Module

    (0)
    High-sensitivity vibration detection using SW-18010P sensor with internal spring mechanism. Adjustable sensitivity through onboard potentiometer for customized motion detection. Integrated LM393 comparator ensures stable digital output and reliable performance. Wide voltage operation (3.3V–5V) compatible with Arduino, Raspberry Pi, and ESP32. Built-in LED...
    BDT 99
    BDT 99 tax incl.
    BDT 99 tax excl.
    BDT 99 tax excl.
    BDT 99 tax incl.
    BDT 99 tax incl.
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    US-100 Ultrasonic Range Finder Module Robotics Bangladesh US-100 Ultrasonic Range Finder Module Robotics Bangladesh

    Reference: RBD-3315

    US-100 Ultrasonic Range Finder Module

    (0)
    Ultrasonic distance and obstacle detection module with up to 450 cm range and 1 mm resolution. Operates in two modes — serial (UART) and pulse-width (trigger/echo). Features built-in temperature compensation for accurate distance calculation. Works at 5 V DC with very low current draw (<3 mA). Ideal for robotics, automation, and distance-sensing...
    BDT 490
    BDT 490 tax incl.
    BDT 490 tax excl.
    BDT 490 tax excl.
    BDT 490 tax incl.
    BDT 490 tax incl.
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    BDT 490 tax excl.
    BDT 490 tax excl.
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    USB to RS-485 Converter - 75176 Module Robotics Bangladesh USB to RS-485 Converter - 75176 Module Robotics Bangladesh

    Reference: RBD-2539

    USB to RS-485 Converter - 75176 Module

    (0)
    Baud rate: 300 – 9216000bps, automatically detecting the serial signal data rate Load capacity: support multipoint, each converter allows RS485 interface device to connect 32 Interface Protection: TVS tube protection, USB self-recovery protection Support Windows98/ME/2000/XP/WIN7/Vista, Linux, Mac It can be up to 32 devices on the bus.
    BDT 360
    BDT 360 tax incl.
    BDT 360 tax excl.
    BDT 360 tax excl.
    BDT 360 tax incl.
    BDT 360 tax incl.
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    BDT 360 tax excl.
    BDT 360 tax excl.
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