Multiplexer Modules Price in BD (Bangladesh) 2026

Buy High-Quality Multiplexer Modules in Bangladesh for Robotics and Science Projects

When working on advanced DIY electronics, robotics kits, or academic science projects, you quickly run into a common hardware limitation: running out of input/output (I/O) pins on development boards like Arduino Uno, Nano, or ESP32. A multiplexer module (commonly referred to as a MUX breakout board) solves this exact bottleneck. By routing multiple analog or digital signals into a single pin using address lines, these components allow makers and students across Bangladesh to expand their microcontroller's capabilities affordably and efficiently.

At Biggan Project (বিজ্ঞান প্রজেক্ট), we source genuine, project-ready multiplexer breakout boards tested specifically for robotics competitions, school/college science fairs, and university capstone prototypes. Whether you need to read 16 analog soil sensors simultaneously or interface multiple OLED displays sharing the same I2C address, our curated selection provides reliable hardware at competitive student-friendly prices in BD.

What is a Multiplexer Module and How Does It Work?

A multiplexer acts as an electronically controlled rotary switch. It takes multiple analog or digital input channels and directs the selected input line to a single output line based on digital selection (address) pins. For instance, using just 4 digital control pins on a microcontroller, a 16-channel MUX allows you to switch between 16 individual sensor inputs sequentially in microseconds.

Key practical benefits for students and hobbyists include:

• Pin Conservation: Free up GPIO pins on compact boards like ESP8266, Arduino Nano, and Raspberry Pi Pico.
• Sensor Scaling: Connect large arrays of analog sensors—such as potentiometers, LDRs, capacitive touch plates, and thermistors—to a single analog-to-digital converter (ADC) pin.
• Bus Conflict Resolution: Use specialized I2C multiplexers to operate multiple identical sensors or displays that have fixed, unchangeable hardware addresses.
• Cost Efficiency: Avoid upgrading to expensive microcontrollers with high pin counts when a simple MUX breakout module achieves the same result.

Popular Types of Multiplexer Breakout Boards in Bangladesh

To help you choose the right component for your specific circuit diagram, Biggan Project stocks several industry-standard MUX chips mounted on easy-to-breadboard breakout PCBs:

1. 16-Channel Analog/Digital Multiplexer (CD74HC4067)

The CD74HC4067 is the most widely used analog multiplexer/demultiplexer module among Bangladeshi engineering and polytechnic students. It operates bidirectionally, meaning it can route analog or digital signals both to and from the common pin. Using 4 digital address pins (S0–S3) and an active-low Enable pin, it handles sensor voltages from 2V to 6V, making it ideal for standard 5V Arduino and 3.3V ESP32 circuits alike.

2. 8-Channel Analog Multiplexer (74HC4051)

For smaller builds requiring fewer inputs, the 74HC4051 8-channel MUX offers a compact, cost-effective alternative. It requires only 3 address select pins to cycle through 8 analog channels, perfect for weather stations, multi-button matrix panels, and battery cell monitoring systems.

3. I2C Bus Multiplexer (TCA9548A / PCA9548A)

Standard I2C sensors often share hardcoded addresses (such as 0x3C for common 0.96-inch OLED displays or 0x68 for MPU6050 gyroscopes). The TCA9548A 8-Channel I2C Multiplexer enables you to control up to 8 separate I2C buses using a single microcontroller port. It seamlessly handles voltage translation between 1.8V, 2.5V, 3.3V, and 5V buses, making it indispensable for complex robotics and IoT builds.

Common Project Ideas Using Multiplexer Modules

If you are planning your next project for a National Science Olympiad, robotics contest, or classroom assignment, here are popular implementations where a MUX module is essential:

• Multi-Channel Soil Moisture Tracking: Monitor 10 to 16 plants across an automated greenhouse by cycling through moisture probe readings into a single analog pin.
• Robotic Line Follower Sensor Arrays: Build high-precision line follower robots with 8 to 16 IR reflectance sensors without tying up all microcontroller pins.
• DIY MIDI Controllers & Musical Keyboards: Connect dozens of potentiometers, faders, and rotary switches directly to an Arduino for custom audio mixing consoles.
• Multiple OLED / Sensor Telemetry Dashboards: Display independent telemetry data across multiple screens simultaneously using an I2C multiplexer.
• Multi-Cell Battery Pack Voltage Balancers: Read individual lithium-ion cell voltages sequentially in battery management experiments.

Quick Comparison Guide for Builders

Frequently Asked Questions (FAQ)

Can a multiplexer module read multiple analog sensors at the exact same millisecond?

Technically, no. A multiplexer samples channels sequentially through time-division multiplexing. However, because switching speeds happen in nanoseconds to microseconds, cycling through 16 channels appears virtually instantaneous for environmental monitoring, robotics control loops, and human-interface projects.

Can I use the CD74HC4067 module with a 3.3V ESP32 or Raspberry Pi Pico?

Yes. The CD74HC4067 operates reliably down to 2V. When pairing with 3.3V microcontrollers, power the module with 3.3V (VCC) to ensure signal levels match your microcontroller's ADC limits safely without damaging the board.

Why choose Biggan Project (বিজ্ঞান প্রজেক্ট) for electronic components in Bangladesh?

Biggan Project (বিজ্ঞান প্রজেক্ট) is dedicated to empowering students, educators, and DIY inventors across Bangladesh. We inspect modules for reliable solder joints, provide clear pinout references, offer fast nationwide delivery, and ensure you get authentic electronic components that work right out of the box.

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