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  • Electronics Module

    Electronics Module (7)

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    IoT (11)

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    Quadcopter (2)

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    Basic Components (8)

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    Development Boards (30)

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    Battery & Charger (17)

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    Micro Controller (26)

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    Motor (13)

  • Sensors

    Sensors (30)

  • Cables/Wires/Connectors

    Cables/Wires/Connectors (6)

    • 4 Channel 5V Relay Module
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    4 Channel 5V Relay Module

    300.00৳  Add to cart

    • Channels: 4

    • Trigger Voltage: 5V DC

    • Switching Voltage: 250V AC / 30V DC @ 10A

    • Microcontroller Compatibility: Arduino, Raspberry Pi, PIC, AVR, ARM, etc.

    • High/Low-Level Trigger Modes

    • Availability: Order now from Circuit City BD!

    Active Speaker Buzzer Module for Arduino 5V
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    Active Speaker Buzzer Module for Arduino 5V

    60.00৳  Add to cart
    • Operating Voltage: 1.5V - 15V DC
    • Tone Generation Range: 1.5 kHz - 2.5 kHz
    • Current Consumption: Less than 25mA
    • Application: Alarms, Timers, Notifications, Sound Alerts
    • Availability: Available at Circuit City BD
    FC-04 Microphone Sound Sensor Module
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    FC-04 Microphone Sound Sensor Module

    75.00৳  Add to cart
    • Product Name: FC-04 Microphone Sound Sensor Module
    • Main Chip: LM393, Electret Condenser Microphone
    • Operating Voltage: 3.3V - 5V
    • Induction Distance: 0.5 Meter
    • Output Signal: Single Channel, Low-Level Output
    • Size: 43mm x 17mm x 8mm
    • Weight: 3g
    • Applications: Sound detection, voice-activated systems, security alarms
    • Availability: Available at Circuit City BD
    2 Channel 5V Relay Module
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    2 Channel 5V Relay Module

    150.00৳  Add to cart

    • Dual-Channel 5V Relay Module

    • Low-Level Trigger Relay

    • Trigger Voltage: 3.3V – 5V

    • Switching Capacity: 250V AC @ 10A, 30V DC @ 10A

    • Opto-Isolated for High Reliability

    • Built-in Back EMF Protection

    • Two LED Indicators for Relay Status

    • Availability: Order now from Circuit City BD

    HX1838 NEC Coding IR Remote Control Sensor Module
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    HX1838 NEC Coding IR Remote Control Sensor Module

    380.00৳  Add to cart

    • IR Remote Control & Sensor Module

    • Operating Voltage: 2.7V - 5.5V

    • Transmission Distance: Up to 8m

    • NEC Encoding Format

    • Internal PCM Filter & EMI Shielding

    • Battery (CR2025) Not Included

    • Availability: Order now from Circuit City BD!

    1 Channel 5V Relay Module
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    1 Channel 5V Relay Module

    99.00৳  Add to cart

    • Relay Type: 1-Channel 5V Relay

    • Operating Voltage: 3V - 5V DC

    • Switching Capacity: AC 250V/10A, DC 30V/10A

    • Trigger Method: High-Level & Low-Level Selectable

    • Microcontroller Compatibility: Arduino, AVR, PIC, ARM, DSP

    • Availability: Order now from Circuit City BD!

    I2C LCD Adapter Module
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    I2C LCD Adapter Module

    90.00৳  Add to cart

    • Interface: I2C (PCF8574 Chip)

    • Compatible LCDs: 16×2 & 20×4 Character Displays

    • Power Supply: 5V DC

    • Adjustable Contrast & Backlight Control

    • Up to 8 Modules on a Single I2C Bus

    • Availability: Order now from Circuit City BD!

    Water Level Depth Detection Sensor Module
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    Water Level Depth Detection Sensor Module

    50.00৳  Add to cart
    • Operating Voltage: 3V - 5V DC
    • Sensor Type: Analog Output
    • Detection Area: 40mm x 16mm
    • Features: Low power consumption, easy water level measurement, high sensitivity
    • Application: Water tank monitoring, rain detection, liquid level measurement
    • Availability: Available at Circuit City BD
    YL-69 Soil Hygrometer Humidity & Soil Moisture Detection Sensor
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    YL-69 Soil Hygrometer Humidity & Soil Moisture Detection Sensor

    120.00৳  Add to cart
    • Operating Voltage: 3.3V - 5V DC
    • Output Modes: Analog & Digital
    • Features: LM393 comparator chip, power indicator, accurate moisture detection
    • Application: Smart irrigation, greenhouse monitoring, soil moisture measurement
    • Availability: Available at Circuit City BD
    ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module
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    ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module

    170.00৳  Add to cart
    • Product Name: ESP8266 (ESP-01) Serial WiFi Wireless Transceiver Module
    • Wi-Fi Standard: 802.11 b/g/n
    • Flash Memory: 1MB
    • Processor: 32-bit CPU with TCP/IP stack
    • Power Efficiency: Standby power <1.0mW (DTIM3)
    • Interfaces: UART, SPI, SDIO 1.1/2.0
    • Applications: IoT, home automation, wireless sensor networks
    • Availability: Available at Circuit City BD
    KY-037 Microphone Sound Sensor Detection Module
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    KY-037 Microphone Sound Sensor Detection Module

    90.00৳  Add to cart
    • Product Name: KY-037 Microphone Sound Sensor Detection Module
    • Main Chip: LM393, Electret Condenser Microphone
    • Operating Voltage: 3.3V - 5V
    • Induction Distance: 0.5 Meter
    • Output Signal: Single Channel, Low-Level Output
    • Size: 43mm x 17mm x 8mm
    • Weight: 3g
    • Applications: Sound detection, voice-activated systems, security alarms
    • Availability: Available at Circuit City BD
    MAX30102 Heart Rate and Pulse Sensor Module
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    MAX30102 Heart Rate and Pulse Sensor Module

    380.00৳  Add to cart
    • Product Name: MAX30102 Heart Rate and Pulse Sensor Module
    • LED Wavelength: Red: 660nm, Infrared: 880nm
    • Power Supply Voltage: 3.3V~5V
    • Communication Interface: I2C
    • Applications: Wearables, medical monitoring, fitness devices
    • Availability: Available at Circuit City BD
    Heart Rate Pulse Sensor Module
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    Heart Rate Pulse Sensor Module

    300.00৳  Add to cart
    • Product Name: Heart Rate Pulse Sensor Module
    • Power: 3-5V
    • Diameter: 16mm
    • Magnification: 330
    • LED Wavelength: 609nm
    • Availability: Available at Circuit City BD
    AS608 Optical Fingerprint Sensor
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    AS608 Optical Fingerprint Sensor

    1,950.00৳  Add to cart
    • Product Name: AS608 Optical Fingerprint Sensor
    • Resolution: 500dpi
    • Supply Voltage: 3.3V
    • Fingerprint Image Entry Time: <1.0 seconds
    • Communication Interface: USB/UART
    • Availability: Available at Circuit City BD

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