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Expanders / extension modules

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PCF8574N - GPIO expander board for microcontroller

The system allows to increase the number of IOs (up to 8) of a microcontroller (e.g. Arduino module). Communicates with the central unit via the I2C bus (TWI).
Index: UCC-01210
Index: UCC-01210
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Regular price PLN5.61 Price PLN5.61

PCF8574 - GPIO expander I2C 8-bit

The system allows to increase the number of devices connected to the I2C bus with 8 pieces. The system has 16 pins.
Index: UCC-04921
Index: UCC-04921
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Regular price PLN6.42 Price PLN6.42

MCP23S08-E/P - GPIO expander SPI 8-channel

The system allows to increase the number of IOs (up to 8) of a microcontroller (including the minicoputer Raspberry Pi). Communicates with the device via the SPI bus.
Index: UCC-04589
Index: UCC-04589
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Regular price PLN8.05 Price PLN8.05

MCP23018-E/SP - 16-Bit I/O Expander with Open-Drain Outputs

The system allows to increase the number of pins (up to 16) of the microcontroller (including minicomputer Raspberry Pi). It communicates with the central unit via the I2C bus...
Index: UCC-06506
Index: UCC-06506
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Regular price PLN8.94 Price PLN8.94

Gravity - MCP23017 I2C expander - 16 I/O - DFRobot DFR0626

The MCP23017 output expander allows you to expand the system with an additional 16 I/O ports via the I2C interface. It has a Gravity connector and standard goldpins. I2C...
Index: DFR-16601
Index: DFR-16601
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Regular price PLN16.18 Price PLN16.18

Mux Shield II GPIO expander for Arduino - SparkFun DEV-11723

Shield for Arduino that allows you to increase the number of pins up to 48 pins that can operate as digital inputs/outputs and analog inputs. Board moves the connectors on its...
Index: SPF-03398
Index: SPF-03398
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Regular price PLN117.89 Price PLN117.89

DS2413 - controller 1-Wire for 2 GPIOs - Adafruit 1551

The module is based on a DS2413 which has two GPIO pins type Open Drain. It also works with 1-Wire bus. The dimensions of the board are 16 x 10 mm.
Index: ADA-09716
Index: ADA-09716
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Regular price PLN21.87 Price PLN21.87

DFRobot Gravity - analog signal isolator

The module prevents the operation interference of the sensors through the insulation of the analog signal and providing an isolated power for sensors. It is supplied with the...
Index: DFR-09529
Index: DFR-09529
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Regular price PLN71.46 Price PLN71.46

SparkFun Qwiic GPIO - eight-pin GPIO module - SparkFun DEV-17047

An extension to easily add eight GPIO pins to a microcontroller. SparkFun Qwiic GPIO uses I2C bus . It is based on TCA9534 I/O Expander IC from Texas Instruments. Additional...
Index: SPF-19303
Index: SPF-19303
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Regular price PLN20.24 Price PLN20.24

MCP23017 - I2C 16-channel output expander

The system allows to increase the number of pins (up to 16 ) of the microcontroller (including minicomputer of Raspberry Pi). It communicates with the central unit via the I2C...
Index: UCC-02556
Index: UCC-02556
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Czas oczekiwania: ok. 10-30 dni
Regular price PLN4.84 Price PLN4.84

Module PCF8574 - GPIO expander board for microcontroller - Waveshare 3708

The module allows you to increase the number of GPIOs (up to 8 more) of a microcontroller (e.g. Arduino module). Communicates on the I2C bus (TWI).
Index: WSR-04455
Index: WSR-04455
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Czas oczekiwania: ok. 10-30 dni
Regular price PLN9.35 Price PLN9.35

MCP23017 Expansion Board - 16 I/O - for Arduino and Raspberry Pi - Waveshare 15391

Expander of pins on the basis of the MCP23017 system, it extends the capabilities of the Arduino or Raspberry Pi with additional 16 pins of I/O. It communicates via I2C...
Index: WSR-13466
Index: WSR-13466
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Czas oczekiwania: ok. 10-30 dni
Regular price PLN14.55 Price PLN14.55

MCP23008-E/P - 8-channel I2C pin expander

The system allows to increase the number of pins (up to 8) of a microcontroller (including minicomputer Raspberry Pi). It communicates with the central unit via the I2C bus...
Index: UCC-06505
Index: UCC-06505
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Czas oczekiwania: ok. 10-30 dni
Regular price PLN5.45 Price PLN5.45

ATSAMD09 Seesaw I2C - Adafruit 3657

Seesaw ATSAMD09 is a universal framework transducer which expands the number of pins for microcontrollers or microcomputers with I2C interface. It extends the board with...
Index: ADA-10319
Index: ADA-10319
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Waiting time: approx. 10-30 days
Regular price PLN22.68 Price PLN22.68

TCA9555DBR - 16-bit I2C expander

The chip expands the number of microcontroller pins (e.g. Arduino). It communicates with the central unit via I2C interface. Extends the number of pins by 16 additional ones.
Index: MOD-15246
Index: MOD-15246
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Waiting time about 10-30 days
Regular price PLN7.89 Price PLN7.89

Gravity - I2C - 2x UART converter - DFRobot DFR0627

A module that allows to derive two UART interfaces from the I2C interface. The maximum transmission speed is 1 Mb/s , each UART interface has an independent FIFO buffer...
Index: DFR-17311
Index: DFR-17311
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Waiting time about 10-30 days
Regular price PLN28.86 Price PLN28.86

Lead-out expanders

In extension modules category we offer over a dozen different solutions. Our product range includes both small ICs in DIP packages for THT mounting (through-hole assembly) and more complex modules (with soldered ICs). In order to connect a device to a microcontroller, previously prepared sockets are used (for example for I2C interface), pins prepared for goldpin mounting or goldpins.

Solutions ready to use

Our product range includes, among other things, a wide selection of modules that are ready-made solutions. You can choose one of them and use in simple and fast way a pinout expander, expanding in this way possibilities of your microcontroller. We have devices designed specifically for use with Raspberry Pi, Arduino and Banana Pi, but will also work well with other microcontrollers. Among other things, we have expanders that increase the number of leads by 8 or 16 pins (analog or digital, often also bidirectional pins). They can expand the number of I2C, GPIO, PWM leads and many others. Mux Shield II is our proposed pin expander designed for Arduino, which is able to increase the number of leads by up to 48 pins (they can work bi-directionally as digital or as analog inputs).

We also offer small ICs in DIP type housings, designed for through-hole mounting (THT). These devices are the cheapest way to purchase your own expander and expand the capabilities of your microcontroller. If you are creating your own device where size or weight is important, this is a great solution for you. The modules we offer are ready-made projects that use similar devices but are adapted to different tasks. You can design your own board, which will be optimized for your device - just put your other necessary components on it and save space.