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$11.99
I2C Interface Expansion Module I2chub I2cadapter Board
Amazon.com
2
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I2C Interface Expansion Module I2chub I2cadapter Board
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XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, Smbus I/O Port, 16 Bit Parallel GPIO Expander, With Pre-Soldered Header
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XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, Smbus I/O Port, 16 Bit Parallel GPIO Expander, With Pre-Soldered Header
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AITIAO 10Pcs PCF8575 IO Expander Board Module I2C To 16 IO Extension Module I2C Communication Control 16 Bit Smbus I/O Ports
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AITIAO 10Pcs PCF8575 IO Expander Board Module I2C To 16 IO Extension Module I2C Communication Control 16 Bit Smbus I/O Ports
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DEVMO 5PCS PCF8574 I2C Interface 8Bit IO MCU Expansion Board I/O Expander IIC Bus Evaluation Development Module Compatible With AVR STM8 C8051F
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DEVMO 5PCS PCF8574 I2C Interface 8Bit IO MCU Expansion Board I/O Expander IIC Bus Evaluation Development Module Compatible With AVR STM8 C8051F
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$11.00
MCP23017 IO Expander Board, I2C Interface 16 GPIO Pins - Compatible With Raspberry Pi, Arduino, STM32 For Easy IO Port Expansion
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MCP23017 IO Expander Board, I2C Interface 16 GPIO Pins - Compatible With Raspberry Pi, Arduino, STM32 For Easy IO Port Expansion
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NOYITO TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board (Pack Of 2)
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26
$5.99
NOYITO TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board (Pack Of 2)
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$11.10
Watangtech MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible With Raspberry Pi, Arduino, STM32 (3.3V
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$11.10
Watangtech MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible With Raspberry Pi, Arduino, STM32 (3.3V
Amazon.com
$14.99
12PCS PCF8574 IO MCU Expansion Board I2C Interface 8Bit I/O Expander IIC Bus Evaluation Development Module
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6
$14.99
12PCS PCF8574 IO MCU Expansion Board I2C Interface 8Bit I/O Expander IIC Bus Evaluation Development Module
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Hiletgo 2Pcs PCF8575 IO Expansion Board I2C IIC 16 IO Ports I/O Extension Shield 16 Bits Smbus I/O Ports
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Hiletgo 2Pcs PCF8575 IO Expansion Board I2C IIC 16 IO Ports I/O Extension Shield 16 Bits Smbus I/O Ports
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$12.95
16 Channels IO Extension Module With I2C Interface For MCP23017 Chip 5V 3.3V Compatible 100Khz 400Khz 1.7Mhz Support High Speed IC Interface
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16 Channels IO Extension Module With I2C Interface For MCP23017 Chip 5V 3.3V Compatible 100Khz 400Khz 1.7Mhz Support High Speed IC Interface
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$8.49
PAMEENCOS 5Pcs PCF8574T I2C IIC Expansion Board Converter Module, Support LCD1602 LCD2004 Blue Backlight LCD Display Adapter Plate, With Integrated
Amazon.com
$8.49
PAMEENCOS 5Pcs PCF8574T I2C IIC Expansion Board Converter Module, Support LCD1602 LCD2004 Blue Backlight LCD Display Adapter Plate, With Integrated
Amazon.com
$9.99
MCP23017 Serial Interface Module IIC I2C SPI Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Interface Module
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2
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MCP23017 Serial Interface Module IIC I2C SPI Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Interface Module
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$12.99
AITRIP 12PCS TCA9548A I2C IIC Multiplexer Breakout Board Module 8 Channel Expansion Development Board For Arduino
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31
$12.99
AITRIP 12PCS TCA9548A I2C IIC Multiplexer Breakout Board Module 8 Channel Expansion Development Board For Arduino
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$9.99
QCCAN 6Pcs PCF8574 PCF8574T IO Expansion Board I/O Expander I2C IIC Port Interface Evaluation Develop Module
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QCCAN 6Pcs PCF8574 PCF8574T IO Expansion Board I/O Expander I2C IIC Port Interface Evaluation Develop Module
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$11.60
Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 Pcs Stacked And Used At The Same Time Allow Multi I2C Modules To Be
Amazon.com
21
$11.60
Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 Pcs Stacked And Used At The Same Time Allow Multi I2C Modules To Be
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$6.10
CH341T 2 in 1 Module 3.3V 5V USB To I2C IIC UART USB To TTL Single-Chip Serial Port Downloader
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$6.10
CH341T 2 in 1 Module 3.3V 5V USB To I2C IIC UART USB To TTL Single-Chip Serial Port Downloader
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$22.95
5 Pcs - MCP23017 - I2c 16 Input/Output Port Expander
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17
$22.95
5 Pcs - MCP23017 - I2c 16 Input/Output Port Expander
Amazon.com
$2.14
PCF8574T I2C Interface Module (1PCS): 2.5V-6V I/O Port Expander With Cascading Support For Arduino
Aliexpress
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PCF8574T I2C Interface Module (1PCS): 2.5V-6V I/O Port Expander With Cascading Support For Arduino
Aliexpress
$2.56
1PCS PCF8575 IO Expander Module - I2C To 16IO Conversion, For Arduino
AliExpress
$2.56
1PCS PCF8575 IO Expander Module - I2C To 16IO Conversion, For Arduino
AliExpress
$1.76
PCF8575 I2C GPIO Expander Module - 16-Channel Bidirectional I/O Port Extender For Arduino, Raspberry
AliExpress
$1.76
PCF8575 I2C GPIO Expander Module - 16-Channel Bidirectional I/O Port Extender For Arduino, Raspberry
AliExpress
$1.32
$1.44
TZT 1/3PCS PCF8575 Module Expansion IO Port Expander Board DC 2.5-5.5V I2C For Arduino
AliExpress
$1.32
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TZT 1/3PCS PCF8575 Module Expansion IO Port Expander Board DC 2.5-5.5V I2C For Arduino
AliExpress
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$4.34
TCA9548A I2C IIC Multiplexer Extender Board 8 Channel With Reset Compatible With For Arduino
AliExpress
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TCA9548A I2C IIC Multiplexer Extender Board 8 Channel With Reset Compatible With For Arduino
AliExpress
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$2.07
PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino DC 2.5-5.5V I2C Communication
AliExpress
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PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino DC 2.5-5.5V I2C Communication
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Arduino Pro Opta EXT A0602 [AFX00007] - Analog Expansion Module For Micro PLC | 6 Programmable Inputs, 2 Outputs, 4 PWM Channels | Iot & Automation
Amazon.com
1
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$228.70
Arduino Pro Opta EXT A0602 [AFX00007] - Analog Expansion Module For Micro PLC | 6 Programmable Inputs, 2 Outputs, 4 PWM Channels | Iot & Automation
Amazon.com
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$1.08
1PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
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1PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$1.73
1PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$1.73
1PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
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PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
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PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
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PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
Free shipping
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$1.19
PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
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$0.71
8-Channel I2C Hub Module Splitter - IIC HUB Interface Expansion Board For Electronic DIY Projects &
AliExpress
Free shipping
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$0.71
8-Channel I2C Hub Module Splitter - IIC HUB Interface Expansion Board For Electronic DIY Projects &
AliExpress
$5.81
CH341A Programmer USB To UART IIC SPI I2C Convertor Parallel Port Onboard Operating Indicator Lamp Board Module
Amazon.com
$5.81
CH341A Programmer USB To UART IIC SPI I2C Convertor Parallel Port Onboard Operating Indicator Lamp Board Module
Amazon.com
$0.40
$0.50
Diymore TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board For Arduino
AliExpress
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$0.40
$0.50
Diymore TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board For Arduino
AliExpress
$1.47
PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$1.47
PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$1.24
$1.35
TZT 1/3PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$1.24
$1.35
TZT 1/3PCS PCF8575 IO Expander Module I2C To 16IO Integrated Circuits For Arduino
AliExpress
$11.99
1X Pro Micro Board 5V/16Mhz Module Board Type C Port For Arduino Leonardo
Amazon.com
62
$11.99
1X Pro Micro Board 5V/16Mhz Module Board Type C Port For Arduino Leonardo
Amazon.com
$1.74
$3.53
1-50PCS PCF8574 I2C 8-Channel GPIO Expander Module - 8-Bit I/O Extender For Arduino ESP32
AliExpress
Free shipping
50% off
$1.74
$3.53
1-50PCS PCF8574 I2C 8-Channel GPIO Expander Module - 8-Bit I/O Extender For Arduino ESP32
AliExpress
$5.88
PCF8575 PCF8575C IIC I2C I/O Extension Shield Module 16-Bit 400Khz Smbus I/O Ports For Arduino
AliExpress
$5.88
PCF8575 PCF8575C IIC I2C I/O Extension Shield Module 16-Bit 400Khz Smbus I/O Ports For Arduino
AliExpress
PCF8575 - 16 Bit I/O Port Expander - Driver implementation
PCF8575 - 16 Bit I/O Port Expander - Driver implementation
Jul 1, 2016
arduino.cc
I2c port Extender - controlling with Arduino
I2c port Extender - controlling with Arduino
Nov 11, 2017
arduino.cc
I2C second example using arduino to control port extender
I2C second example using arduino to control port extender
Nov 12, 2017
arduino.cc
IO Expander for ESP32, ESP8266, and Arduino
IO Expander for ESP32, ESP8266, and Arduino
Oct 1, 2020
instructables.com
NEW PRODUCT – MCP23017 – i2c 16 input/output port expander
NEW PRODUCT – MCP23017 – i2c 16 input/output port expander
Feb 28, 2012
adafruit.com
[Tronixstuff] MCP23017 | I2C Port | Help wanted
[Tronixstuff] MCP23017 | I2C Port | Help wanted
May 1, 2012
arduino.cc
Connect 16x2 LCD to Arduino Using I2C
Connect 16x2 LCD to Arduino Using I2C
4.8K viewsOct 8, 2020
instructables.com
PCF8575 vs. PCF8575C I2C expanders
Apr 6, 2012
arduino.cc
How to Connect I2C Lcd Display to Arduino Uno
285K viewsOct 1, 2020
instructables.com
Tutorial: Maximising your Arduino’s I/O ports with MCP23017
Aug 26, 2011
tronixstuff.com
Using the PCF8575 I2c I/o Expander to Read Inputs With Arduino
71.5K viewsSep 30, 2020
instructables.com
PCF8575 (i2c 16 Pins Digital I/O Expander) Fast Easy Usage (Ardui…
33.2K viewsOct 4, 2020
instructables.com
Interfacing an I2C GPIO expander (MCP23017) to the Raspberry Pi u…
Apr 4, 2013
adafruit.com
PCF8574 i2c digital I/O expander: Arduino, esp8266 and esp32, basi…
Oct 25, 2023
mischianti.org
0:38
Sadece 2 Kablo ile 16 Ekstra Pin Kazanın! | Port Çoğaltıcı
47.3K views1 month ago
YouTubeKaşif Mühendis
1:30
1 -10PCS PCF8575 Module Expansion IO port Expander boar…
5 months ago
YouTubeAbramSREltingh
I2C Port expander
78 viewsMar 5, 2022
VimeoNick Gammon
8:51
Atmega16 interfacing to I2C LCD display
8.3K viewsMay 2, 2021
YouTubeCode-N-Logic
6:22
Connecting Arduino with multiple I2C devices
202.5K viewsOct 19, 2016
YouTubeBlueDot
3:56
How to add more digital I/O lines to the Arduino UNO
38.3K viewsNov 2, 2016
YouTube0033mer
25:51
I2C Part 1 - Using 2 Arduinos
465.9K viewsMar 30, 2019
YouTubeDroneBot Workshop
19:22
PCF8574 I2C GPIO Expander Tutorial
42.8K viewsAug 15, 2018
YouTubeGadget Reboot
18:11
Arduino Tutorial #8: I2C Communication
126.4K viewsJul 11, 2012
YouTubehumanHardDrive
4:35
Interface MCP23017 (Port Expander) With Arduino Uno
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YouTubeEmbedded Gate
3:44
Arduino Connect Multiple I2C Devices - TCA9548A I2C Switch
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YouTubeArduinoProjects
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#20 Tutorial: Multiple Devices on One Arduino I2C Bus
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YouTubeAndreas Spiess
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How to add more Serial ports to an Arduino
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YouTubeAtlas Scientific LLC
30:13
I2C with Arduino and Raspberry Pi - Two Methods
218.9K viewsSep 16, 2019
YouTubeDroneBot Workshop
27:15
How to connect the MCP23017 GPIO Expander to an Arduino and Rasp…
57.5K viewsJan 17, 2019
YouTubeMaker's Digest
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How to Connect an I2C Lcd Display to an Arduino Uno Tutorial
801.1K viewsOct 24, 2016
YouTubetechydiy
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Shop Arduino I2C Port Expander

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$11.99
I2C Interface Expansion Module I2chub I2cadapter Board
Amazon.com
2
$11.99
I2C Interface Expansion Module I2chub I2cadapter Board
Amazon.com
$8.99
XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, Smbus I/O Port, 16 Bit Parallel GPIO Expander, With Pre-Soldered Header
Amazon.com
$8.99
XICOOLEE CAT9555 IO Expansion Module Board I2C Interface, Smbus I/O Port, 16 Bit Parallel GPIO Expander, With Pre-Soldered Header
Amazon.com
$17.99
AITIAO 10Pcs PCF8575 IO Expander Board Module I2C To 16 IO Extension Module I2C Communication Control 16 Bit Smbus I/O Ports
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AITIAO 10Pcs PCF8575 IO Expander Board Module I2C To 16 IO Extension Module I2C Communication Control 16 Bit Smbus I/O Ports
Amazon.com
$12.99
DEVMO 5PCS PCF8574 I2C Interface 8Bit IO MCU Expansion Board I/O Expander IIC Bus Evaluation Development Module Compatible With AVR STM8 C8051F
Amazon.com
6
$12.99
DEVMO 5PCS PCF8574 I2C Interface 8Bit IO MCU Expansion Board I/O Expander IIC Bus Evaluation Development Module Compatible With AVR STM8 C8051F
Amazon.com
$11.00
MCP23017 IO Expander Board, I2C Interface 16 GPIO Pins - Compatible With Raspberry Pi, Arduino, STM32 For Easy IO Port Expansion
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MCP23017 IO Expander Board, I2C Interface 16 GPIO Pins - Compatible With Raspberry Pi, Arduino, STM32 For Easy IO Port Expansion
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NOYITO TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board (Pack Of 2)
Amazon.com
26
$5.99
NOYITO TCA9548A I2C IIC Multiplexer Breakout Board 8 Channel Expansion Board (Pack Of 2)
Amazon.com
$11.10
Watangtech MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible With Raspberry Pi, Arduino, STM32 (3.3V
Amazon.com
$11.10
Watangtech MCP23017 I/O Expander Module - 16 GPIO Pins, I2C Interface, Onboard 3-Digit DIP Switch - Compatible With Raspberry Pi, Arduino, STM32 (3.3V
Amazon.com
$14.99
12PCS PCF8574 IO MCU Expansion Board I2C Interface 8Bit I/O Expander IIC Bus Evaluation Development Module
Amazon.com
6
$14.99
12PCS PCF8574 IO MCU Expansion Board I2C Interface 8Bit I/O Expander IIC Bus Evaluation Development Module
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Hiletgo 2Pcs PCF8575 IO Expansion Board I2C IIC 16 IO Ports I/O Extension Shield 16 Bits Smbus I/O Ports
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Hiletgo 2Pcs PCF8575 IO Expansion Board I2C IIC 16 IO Ports I/O Extension Shield 16 Bits Smbus I/O Ports
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16 Channels IO Extension Module With I2C Interface For MCP23017 Chip 5V 3.3V Compatible 100Khz 400Khz 1.7Mhz Support High Speed IC Interface
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16 Channels IO Extension Module With I2C Interface For MCP23017 Chip 5V 3.3V Compatible 100Khz 400Khz 1.7Mhz Support High Speed IC Interface
Amazon.com
$8.49
PAMEENCOS 5Pcs PCF8574T I2C IIC Expansion Board Converter Module, Support LCD1602 LCD2004 Blue Backlight LCD Display Adapter Plate, With Integrated
Amazon.com
$8.49
PAMEENCOS 5Pcs PCF8574T I2C IIC Expansion Board Converter Module, Support LCD1602 LCD2004 Blue Backlight LCD Display Adapter Plate, With Integrated
Amazon.com
$9.99
MCP23017 Serial Interface Module IIC I2C SPI Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Interface Module
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2
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MCP23017 Serial Interface Module IIC I2C SPI Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Interface Module
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AITRIP 12PCS TCA9548A I2C IIC Multiplexer Breakout Board Module 8 Channel Expansion Development Board For Arduino
Amazon.com
31
$12.99
AITRIP 12PCS TCA9548A I2C IIC Multiplexer Breakout Board Module 8 Channel Expansion Development Board For Arduino
Amazon.com
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QCCAN 6Pcs PCF8574 PCF8574T IO Expansion Board I/O Expander I2C IIC Port Interface Evaluation Develop Module
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QCCAN 6Pcs PCF8574 PCF8574T IO Expansion Board I/O Expander I2C IIC Port Interface Evaluation Develop Module
Amazon.com
$11.60
Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 Pcs Stacked And Used At The Same Time Allow Multi I2C Modules To Be
Amazon.com
21
$11.60
Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Allows 8 Pcs Stacked And Used At The Same Time Allow Multi I2C Modules To Be
Amazon.com
$6.10
CH341T 2 in 1 Module 3.3V 5V USB To I2C IIC UART USB To TTL Single-Chip Serial Port Downloader
Amazon.com
$6.10
CH341T 2 in 1 Module 3.3V 5V USB To I2C IIC UART USB To TTL Single-Chip Serial Port Downloader
Amazon.com
$22.95
5 Pcs - MCP23017 - I2c 16 Input/Output Port Expander
Amazon.com
17
$22.95
5 Pcs - MCP23017 - I2c 16 Input/Output Port Expander
Amazon.com
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PCF8574T I2C Interface Module (1PCS): 2.5V-6V I/O Port Expander With Cascading Support For Arduino
Aliexpress
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PCF8574T I2C Interface Module (1PCS): 2.5V-6V I/O Port Expander With Cascading Support For Arduino
Aliexpress