• Banner

    I/O Expander - MCP23008 Robotics Bangladesh
    • I/O Expander - MCP23008 Robotics Bangladesh

    I/O Expander - MCP23008

    RBD-2798

    • MCP23008 I/O Expander – adds 8 extra GPIO pins
    • I²C interface, supports up to 8 devices on a single bus
    • Operates from 2.7V–5.5V, ideal for 3.3V or 5V systems
    • Configurable pins: input, output, or input with pull-up
    • Interrupt output pin for event-driven applications
    • DIP package for easy breadboard or perfboard use
    BDT 490
    BDT 490 BDT 490 BDT 490 BDT 490
    Tax excluded Tax includedTax excludedTax includedTax excluded
    BDT 490 Tax excluded
    BDT 490 Tax included
    BDT 0 Tax
    BDT 490 Tax excluded
    BDT 0 Tax
    BDT 490 Tax included
    Quantity
    In-Stock
    17 Items

    3 people have purchased this item
    17 items in stock
    Description

    The MCP23008 I/O Expander is a versatile chip that adds eight general-purpose I/O pins to your microcontroller via an I²C interface. Each pin can be configured as an input, output, or input with pull-up, offering flexibility for a wide range of applications. It includes an interrupt output for event-driven designs, removing the need for constant polling. With support for up to eight MCP23008 devices on the same bus, you can expand your system to 64 additional GPIO pins using only two microcontroller pins. Compact, reliable, and easy to use, this expander is perfect for projects needing extra digital I/O. Featured By RoboticsBD.

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

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Features:

    1. Adds 8 extra GPIO pins to any microcontroller.

    2. I²C interface – only requires two pins.

    3. Configurable I/O: input, output, or input with pull-up.

    4. Interrupt output for monitoring pin changes.

    5. Up to 8 devices can share a single I²C bus (64 pins total).

    6. Operates from 2.7V to 5.5V – works with 3.3V and 5V systems.

    7. Low standby current: max. 1 µA.

    8. DIP package – easy to use with breadboards or PCBs.

    9. Can sink/source up to 20mA per pin (ideal for LEDs, etc.).

    10. Address pins allow unique device configurations.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Applications:

    1. GPIO expansion for Arduino, ESP32, Raspberry Pi, and STM32.

    2. Robotics projects needing multiple input/output signals.

    3. LED matrix or display control.

    4. Keypad and button matrix scanning.

    5. Sensor hub expansion.

    6. Home automation and IoT devices.

    7. Industrial control and monitoring systems.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    General Specifications
    ModelMCP23008 I/O Expander
    I/O Pins8 (individually configurable)
    InterfaceI²C (100kHz – 1.7kHz depending on Vcc)
    Voltage Range2.7V – 5.5V
    Current DriveUp to 20mA per pin
    PackageDIP (breadboard/PCB compatible)
    Interrupt SupportYes
    Operating Temperature-40°C to +85°C
    Expansion SupportUp to 8 devices (64 I/O)
    Shipment Weight0.0010 kg
    Shipment Dimensions4× 3× 2cm

    Please allow 5% measuring deviation due to manual measurement.

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Package Includes:

    1 x I/O Expander - MCP23008

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD 

    Product Details
    RBD-2798
    17 Items

    Specific References

    EAN13
    2798
    Comments (0)
    Grade
    No customer reviews for the moment.
    16 other products in the same category:
    TPA3118 - 28p PBTL Mono Digital Amplifier Board 1X30W 12V Power Amplifier Module Robotics Bangladesh TPA3118 - 28p PBTL Mono Digital Amplifier Board 1X30W 12V Power Amplifier Module Robotics Bangladesh

    Reference: RBD-2213

    TPA3118 - 28p PBTL Mono Digital Amplifier Board 1X30W 12V Power Amplifier Module

    (0)
    Operating voltage (v):DC 8 – 12V Chipset:TPA3118 - 28 pin Chinese Variant Power output:30W Material:FR4This is a Chinese variant of the TPA3118 in a 28-pin package.
    BDT 360
    BDT 360 tax incl.
    BDT 360 tax excl.
    BDT 360 tax excl.
    BDT 360 tax incl.
    BDT 360 tax incl.
    BDT 0 Tax
    BDT 360 tax excl.
    BDT 360 tax excl.
    BDT 0 Tax
    BDT 360 tax incl.
    More TPA3118 - 28p PBTL Mono Digital Amplifier Board 1X30W 12V Power Amplifier Module
    In-Stock
    In stock: 23
    Industrial Grade USB to RS485 Converter Robotics Bangladesh Industrial Grade USB to RS485 Converter Robotics Bangladesh

    Reference: RBD-3048

    Industrial Grade USB to RS485 Converter

    (0)
    Industrial-grade USB to RS485 converter for stable data communication Built with CH340 chipset ensuring fast and reliable performance Transparent blue casing for durability and component visibility Compatible with a wide range of RS485-based industrial equipment Ideal for automation, CNC, PLC, and industrial control systems Plug-and-play solution with...
    BDT 1,350
    BDT 1,350 tax incl.
    BDT 1,350 tax excl.
    BDT 1,350 tax excl.
    BDT 1,350 tax incl.
    BDT 1,350 tax incl.
    BDT 0 Tax
    BDT 1,350 tax excl.
    BDT 1,350 tax excl.
    BDT 0 Tax
    BDT 1,350 tax incl.
    More Industrial Grade USB to RS485 Converter
    In-Stock
    In stock: 25
    High Sensitivity Rotary Angle Sensor Adjustable Potentiometer Knob Module Robotics Bangladesh High Sensitivity Rotary Angle Sensor Adjustable Potentiometer Knob Module Robotics Bangladesh

    Reference: RBD-3120

    High Sensitivity Rotary Angle Sensor Adjustable Potentiometer Knob Module

    (0)
    High-sensitivity rotary angle sensor based on a 10KΩ adjustable potentiometer Analog voltage output (0–VCC) varies linearly with rotation angle Compatible with 3.3V–5.5V systems, including Arduino and Raspberry Pi Aluminum knob ensures smooth and precise control Four M2 mounting holes for stable and easy installation Ideal for volume, brightness, and...
    BDT 290
    BDT 290 tax incl.
    BDT 290 tax excl.
    BDT 290 tax excl.
    BDT 290 tax incl.
    BDT 290 tax incl.
    BDT 0 Tax
    BDT 290 tax excl.
    BDT 290 tax excl.
    BDT 0 Tax
    BDT 290 tax incl.
    More High Sensitivity Rotary Angle Sensor Adjustable Potentiometer Knob Module
    In-Stock
    In stock: 34
    TDA7492P Bluetooth 4.2 CSR8635 Bluetooth Receiver Amplifier Audio Board 2x25W for 4/6/8/16 Ohm Speakers Module Parts Component

    Reference: RBD-1582

    TDA7492P Bluetooth 4.2 CSR8635 Bluetooth Receiver Amplifier Audio Board 2x25W for 4/6/8/16 Ohm Speakers Module Parts Component

    (0)
    25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 – 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection
    BDT 895
    BDT 895 tax incl.
    BDT 895 tax excl.
    BDT 895 tax excl.
    BDT 895 tax incl.
    BDT 895 tax incl.
    BDT 0 Tax
    BDT 895 tax excl.
    BDT 895 tax excl.
    BDT 0 Tax
    BDT 895 tax incl.
    More TDA7492P Bluetooth 4.2 CSR8635 Bluetooth Receiver Amplifier Audio Board 2x25W for 4/6/8/16 Ohm Speakers Module Parts Component
    In-Stock
    In stock: 16
    GY-NEO-7M V2 Flight Control GPS Module Robotics Bangladesh GY-NEO-7M V2 Flight Control GPS Module Robotics Bangladesh

    Reference: RBD-3279

    GY-NEO-7M V2 Flight Control GPS Module

    (0)
    High-performance GPS module based on u-blox M8 GNSS engine. Supports GPS, GLONASS, Galileo, BeiDou, QZSS, and SBAS systems for global coverage. Fast satellite acquisition and high positioning accuracy. Built-in flash memory allows firmware updates for future compatibility. Includes passive ceramic antenna and SMA connector for external active antenna....
    BDT 650
    BDT 650 tax incl.
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 650 tax incl.
    BDT 650 tax incl.
    BDT 0 Tax
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 0 Tax
    BDT 650 tax incl.
    More GY-NEO-7M V2 Flight Control GPS Module
    In-Stock
    In stock: 7
    RF Transceiver Radio Module nRF905 433/868/915MHz with Antenna Robotics Bangladesh RF Transceiver Radio Module nRF905 433/868/915MHz with Antenna Robotics Bangladesh

    Reference: RBD-2928

    RF Transceiver Radio Module nRF905 433/868/915MHz with Antenna

    (0)
    nRF905 RF transceiver module supporting 433/868/915 MHz bands Operates via SPI communication interface with GMSK modulatio Powered by 1.7V–3.3V, low power consumption: 12.5mA (RX), 30mA (TX) Receiver sensitivity: -100 dBm, max output power: 10 dBm Includes external SMA antenna for stable long-range transmission Compact size: 31 × 19 mm, goldpin connectors...
    BDT 490
    BDT 490 tax incl.
    BDT 490 tax excl.
    BDT 490 tax excl.
    BDT 490 tax incl.
    BDT 490 tax incl.
    BDT 0 Tax
    BDT 490 tax excl.
    BDT 490 tax excl.
    BDT 0 Tax
    BDT 490 tax incl.
    More RF Transceiver Radio Module nRF905 433/868/915MHz with Antenna
    In-Stock
    In stock: 17
    On sale! ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module Robotics Bangladesh

    Reference: RBD-0345

    ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module

    (0)
    802.11 b/g/n Standards Wi-Fi Direct (P2P), soft-AP 1MB Flash Memory Integrated low power 32-bit CPU could be used as an application processor A-MPDU & A-MSDU aggregation & 0.4ms guard interval Wake up and transmit packets in < 2ms Standby power consumption of < 1.0mW (DTIM3) RoboticsBD
    BDT 194
    BDT 194 tax incl.
    BDT 194 tax excl.
    BDT 194 tax excl.
    BDT 194 tax incl.
    BDT 194 tax incl.
    BDT 0 Tax
    BDT 194 tax excl.
    BDT 194 tax excl.
    BDT 0 Tax
    BDT 194 tax incl.
    More ESP-01 ESP8266 Serial WIFI Wireless Transceiver Module
    In-Stock
    In stock: 305
    Sold-out Arduino SD card Module Robotics Bangladesh

    Reference: RBD-0387

    Arduino SD card Module

    (0)
    All SD SPI pins output, MOSI, SCK, MISO, and CS. Support 5V/3.3V input. This module can handle 2GB SD cards. Size:4.7  x 3.1 cm. LED indicator. SD Card Holder. RoboticsBD Onboard 3.3V regulator (AMS1117-3.3) for +5v to 3.3V generation. 3.3V is also available as output.
    BDT 250
    BDT 250 tax incl.
    BDT 250 tax excl.
    BDT 250 tax excl.
    BDT 250 tax incl.
    BDT 250 tax incl.
    BDT 0 Tax
    BDT 250 tax excl.
    BDT 250 tax excl.
    BDT 0 Tax
    BDT 250 tax incl.
    More Arduino SD card Module
    Sold-out
    In stock: 0
    W25Q64 64Mbit 8MByte Data Flash module SPI Interface BV/FVinter Robotics Bangladesh

    Reference: RBD-2671

    W25Q64 64Mbit 8MByte Data Flash module SPI Interface BV/FVinter

    (0)
    W25Q64 64Mbit (8MB) SPI Data Flash module for reliable data storage Based on high-quality 25Q64FVSIG-1935 IC with low power consumption Organized into 32,768 programmable pages of 256 bytes each Flexible erase options: 4KB sector, 32KB block, 64KB block, or full chip erase Operates at 2.7V–3.6V with clock frequency up to 104MHz Pre-soldered on module with...
    BDT 145
    BDT 145 tax incl.
    BDT 145 tax excl.
    BDT 145 tax excl.
    BDT 145 tax incl.
    BDT 145 tax incl.
    BDT 0 Tax
    BDT 145 tax excl.
    BDT 145 tax excl.
    BDT 0 Tax
    BDT 145 tax incl.
    More W25Q64 64Mbit 8MByte Data Flash module SPI Interface BV/FVinter
    In-Stock
    In stock: 23
    On sale! 4 Channel 12V Relay Board Module Robotics Bangladesh 4 Channel 12V Relay Board Module Robotics Bangladesh

    Reference: RBD-1400

    4 Channel 12V Relay Board Module

    (0)
    4-Channel Relay interface board and each one needs 15-20mA Driver Current. Both controlled by 12V and 5V input Voltage. Equipped with high-current relay, AC250V 10A ; DC30V 10A. Standard interface that can be controlled directly by microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic active low). Indication LED’s for Relay output...
    BDT 298
    BDT 298 tax incl.
    BDT 298 tax excl.
    BDT 298 tax excl.
    BDT 298 tax incl.
    BDT 298 tax incl.
    BDT 0 Tax
    BDT 298 tax excl.
    BDT 298 tax excl.
    BDT 0 Tax
    BDT 298 tax incl.
    More 4 Channel 12V Relay Board Module
    In-Stock
    In stock: 87
    NEO-M8N GPS Module with Ceramic Active Antenna Robotics Bangladesh

    Reference: RBD-1722

    NEO-M8N GPS Module with Ceramic Active Antenna New

    (0)
    Antenna Size : approx. 26 x 26 x 9 (LxWxH) mm. Module Size : approx. 26 x 36 x 4 (LxWxH) mm. Net weight : approx. 16 gm. Gross weight : approx. 17 gm. Mounting : approx. 3 mm. The default baud rate : 9600.
    BDT 940
    BDT 940 tax incl.
    BDT 940 tax excl.
    BDT 940 tax excl.
    BDT 940 tax incl.
    BDT 940 tax incl.
    BDT 0 Tax
    BDT 940 tax excl.
    BDT 940 tax excl.
    BDT 0 Tax
    BDT 940 tax incl.
    More NEO-M8N GPS Module with Ceramic Active Antenna New
    In-Stock
    In stock: 6
    CP2102 Module USB to TTL Serial UART Converter Robotics Bangladesh

    Reference: RBD-1770

    CP2102 Module USB to TTL Serial UART Converter

    (0)
    Brand new and high quality Included USB transceiver, without external circuit device With 3.3V and 5V dual power output With three LEDs: power indicator, data reception indicator, the data transmission indicator, working status Meets the USB2.0 specification requirements With self-recovery fuse. In the event of the accidental short circuit, it can...
    BDT 330
    BDT 330 tax incl.
    BDT 330 tax excl.
    BDT 330 tax excl.
    BDT 330 tax incl.
    BDT 330 tax incl.
    BDT 0 Tax
    BDT 330 tax excl.
    BDT 330 tax excl.
    BDT 0 Tax
    BDT 330 tax incl.
    More CP2102 Module USB to TTL Serial UART Converter
    In-Stock
    In stock: 14

    Reference: RBD-1750

    Instrumentation Voltage Amplifier Module AD620

    (0)
    Operating Voltage: 3- 12 VDC Amplification: Adjustable 1.5~1000 times Signal Input Voltage Range: 100µV~300mV Signal Output Range: 100µV~300mV
    BDT 420 BDT 650
    BDT 650 BDT 420 tax incl.
    BDT 650 BDT 420 tax excl.
    BDT 650 BDT 420 tax excl.
    BDT 650 BDT 420 tax incl.
    BDT 650 BDT 420 tax incl.
    BDT 0 BDT 0 Tax
    BDT 650 BDT 420 tax excl.
    BDT 650 BDT 420 tax excl.
    BDT 0 BDT 0 Tax
    BDT 650 BDT 420 tax incl.
    More Instrumentation Voltage Amplifier Module AD620
    In-Stock
    In stock: 59
    PT100 to 0-5V Converter PCB-mounted PT100 to 0-10V Conversion Module RTD PT100 to Voltage Signal Conditioner Robotics Bangladesh

    Reference: RBD-1834

    PT100 to 0-5V Converter PCB-mounted PT100 to 0-10V Conversion Module RTD PT100 to Voltage Signal Conditioner

    (0)
    PT100 to 0-5V Converter Voltage Signal Conditioner PCB-mounted
    BDT 1,790
    BDT 1,790 tax incl.
    BDT 1,790 tax excl.
    BDT 1,790 tax excl.
    BDT 1,790 tax incl.
    BDT 1,790 tax incl.
    BDT 0 Tax
    BDT 1,790 tax excl.
    BDT 1,790 tax excl.
    BDT 0 Tax
    BDT 1,790 tax incl.
    More PT100 to 0-5V Converter PCB-mounted PT100 to 0-10V Conversion Module RTD PT100 to Voltage Signal Conditioner
    In-Stock
    In stock: 8
    Operational Single/Dual Amplifier OP AMP Tester Single/Dual Op Amp Test Board Robotics Bangladesh Operational Single/Dual Amplifier OP AMP Tester Single/Dual Op Amp Test Board Robotics Bangladesh

    Reference: RBD-2554

    Operational Single/Dual Amplifier OP AMP Tester Single/Dual Op Amp Test Board

    (0)
    Practical OP AMP tester board for single & dual operational amplifier ICs Supports popular ICs: LM741, LM358, NE5532, TL071, OP07, and more Compact PCB with onboard passive components for accurate testing Quickly evaluate gain, frequency response, and signal behavior Ideal for engineers, students, and hobbyists for prototyping & learning Easy...
    BDT 1,950
    BDT 1,950 tax incl.
    BDT 1,950 tax excl.
    BDT 1,950 tax excl.
    BDT 1,950 tax incl.
    BDT 1,950 tax incl.
    BDT 0 Tax
    BDT 1,950 tax excl.
    BDT 1,950 tax excl.
    BDT 0 Tax
    BDT 1,950 tax incl.
    More Operational Single/Dual Amplifier OP AMP Tester Single/Dual Op Amp Test Board
    In-Stock
    In stock: 15
    I2C Bi-directional Logic Level Converter Robotics Bangladesh

    Reference: RBD-0944

    I2C Bi-directional Logic Level Converter

    (0)
    Material: ABS + metal Dimensions: 16 x13 x 3 (L x W x H) mm Weight: 2gm Mutual transform between 5V TTL and 3.3V TTL Four channels of logic and high voltage low voltage logic can two-way transform Portable and lightness, with 2 rows 6 pin contact pins
    BDT 65
    BDT 65 tax incl.
    BDT 65 tax excl.
    BDT 65 tax excl.
    BDT 65 tax incl.
    BDT 65 tax incl.
    BDT 0 Tax
    BDT 65 tax excl.
    BDT 65 tax excl.
    BDT 0 Tax
    BDT 65 tax incl.
    More I2C Bi-directional Logic Level Converter
    In-Stock
    In stock: 72
    You might also like
    ESP32-IO Shield Expansion Board for Arduino WIFI ESP32 Robotics Bangladesh

    Reference: RBD-2219

    ESP32-IO Shield Expansion Board for Arduino WIFI ESP32

    (0)
    ESP32-IO shield Compatible with RoboticsBD ESP32 Core board Brings out all the pins of RoboticsBD ESP32 Core board 2 rows of 2.54mm pin headers for connecting other sensors Power supply circuit for RoboticsBD ESP32 Core board DC 7-12V voltage input DIP switch for controlling the power
    BDT 499
    BDT 499 tax incl.
    BDT 499 tax excl.
    BDT 499 tax excl.
    BDT 499 tax incl.
    BDT 499 tax incl.
    BDT 0 Tax
    BDT 499 tax excl.
    BDT 499 tax excl.
    BDT 0 Tax
    BDT 499 tax incl.
    More ESP32-IO Shield Expansion Board for Arduino WIFI ESP32
    In-Stock
    In stock: 62
    IOBIT V2.0 Expansion Board for micro:bit Robotics Bangladesh IOBIT V2.0 Expansion Board for micro:bit Robotics Bangladesh

    Reference: RBD-3603

    IOBIT V2.0 Expansion Board for micro:bit

    (0)
    The IOBIT V2.0 Expansion Board is a compact, fully-featured breakout board designed for the BBC micro:bit, ideal for DIY electronics and small-scale robotics projects. It extends all IO pins of the micro:bit and adds enhanced features like an on-board buzzer, 3.5mm audio jack, 5V output support, and LEGO-compatible mounting holes, offering increased...
    BDT 650
    BDT 650 tax incl.
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 650 tax incl.
    BDT 650 tax incl.
    BDT 0 Tax
    BDT 650 tax excl.
    BDT 650 tax excl.
    BDT 0 Tax
    BDT 650 tax incl.
    More IOBIT V2.0 Expansion Board for micro:bit
    In stock
    In stock: 47

    Reference: RBD-0385

    MCP23017 I2C 16 Input/Output Port Expander

    (0)
    IC Name: MCP23017 Package/Case: DIP-28
    BDT 410 BDT 490
    BDT 490 BDT 410 tax incl.
    BDT 490 BDT 410 tax excl.
    BDT 490 BDT 410 tax excl.
    BDT 490 BDT 410 tax incl.
    BDT 490 BDT 410 tax incl.
    BDT 0 BDT 0 Tax
    BDT 490 BDT 410 tax excl.
    BDT 490 BDT 410 tax excl.
    BDT 0 BDT 0 Tax
    BDT 490 BDT 410 tax incl.
    More MCP23017 I2C 16 Input/Output Port Expander
    In-Stock
    In stock: 41

    Follow us on Facebook