The SparkFun Multiplexer Breakout provides access to all pins and features of the 74HC4051, an 8-channel analog multiplexer/demultiplexer. The 74HC4051 allows you to turn four I/O pins into eight multifunctional, individually selectable signals, which can be used to do everything from driving eight LEDs to monitoring eight potentiometers.
The 74HC4051 can function as either a multiplexer or a demultiplexer, and it features eight channels of selectable inputs/outputs. The routing of common signal to independent I/O is set by digitally controlling three select lines, which can be set either high or low into one of eight binary combinations.
One half of the board breaks out the control signals (E, S0-S2) and common input/output (Z). The other side provides access to all eight independent I/O’s (Y0-Y7). Both sides include supply and ground connections (VCC, VEE, GND).
Manufacturer
Responsible person
KAmod Multiplexer features the CD4051 chip, which is an analog 8-channel multiplexer/demultiplexer. The chip can handle analog signals with an amplitude of up to 20 VPP and provides low on-state resistance. The active channel is selected through a sequence of states on three digital inputs
I2C multiplexer module with TCA9548A system. Allows you to connect up to 8 devices. The system works like a gateway - it transmits I2C interface data to one of the 8 main busses. This allows you to connect up to 8 devices with the same address. Adafruit 2717
16-channel GPIO expander with an I2C interface microcontroller can interface with 16 fully configurable digital input/output pins. It can produce PWM signals, so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. With a built-in keypad engine, it can interface with up to 64 buttons set up in an 8x8 matrix. BOB-13601
PCA9555APW,118 is a versatile 16-bit I/O expander with I2C interface and interrupt capability, ideal for applications requiring efficient GPIO extension
Micro:Mate is an expansion board for the micro: bit development module. It provides six 3-pin connectors with I/O outputs, a 3.5mm audio jack connector and is powered from a 5V microUSB connector. DFRobot DFR0518
No product available!
Module with 16-channel I/O ports expander controlled by the I2C interface. It was based on the MCP23017 chip. Waveshare MCP23017 IO Expansion Board
No product available!
Module with 16-channel IO expander MCP23017 controlled by the I2C interface. Designed for minicomputers Raspberry Pi. Adafruit 4132
8-channel I2C expander module based on the TCA9548A system. The module has Qwiic connectors and allows communication with many I2C devices that have the same address. Sparkfun BOB-16784
16-channel I/O port expander module controlled by the I2C interface. The module is based on the MCP23017-E/SS system.
I2C-UART converter module with two UART output interfaces. Configuration of I2C addresses allows you to connect up to 4 such modules to one controller, which means extending the board\'s capabilities by 8 UART interfaces. DFRobot DFR0627
Module with an IO pin expander based on the TCA9534 system. It allows you to add 8 GPIO pins to an I2C-controlled project. SparkFun DEV-17047
No product available!
IO port expander for M5Stack kits. Equipped with 8 IO pins and power pins, it communicates via the I2C interface. M5Stack U011-B
Module with IO expander equipped with 14 inputs/outputs, including 8 connected to the ADC converter and 6 to PWM outputs. It communicates via the I2C interface and is compatible with the Raspberry Pi. Pimoroni PIM517
The KAmodPCAL6408 is an 8-bit I/O expander with the PCAL6408A chip by NXP, controlled by the I2C interface.
Module with a 16-channel GPIO expander with the ability to control LEDs. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4886
I2C bus amplifier module based on the LTC4311 system. It enables communication via a popular interface over much longer distances while maintaining high transmission speeds. Adafruit 4756
BOB-13906