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RTC PCF8523 I2C - real time clock - Adafruit 3295

Module with real time clock and backup battery. It is used in applications written to register data, in clock, alarms, etc. Communication interface is an I2C bus.
4.7 (4)
Index: ADA-07662
Index: ADA-07662
Waiting for delivery
Goods pending acceptance - available within a few days
Regular price €9.90 Price €9.90

Module with analog-digital multiplexer 74HC4067 - SparkFun BOB-09056

Module with 16 channel CD74HC4067 multiplexer allows you to connect up to 16 signals to a single analog output. The system can work as a demultiplexer and work with digital...
5.0 (2)
Index: SPF-01630
Index: SPF-01630
Temporarily unavailable
No scheduled delivery
Regular price €8.00 Price €8.00

Two-channel optoisolator ILD213T - SparkFun BOB-09118

2-channel opto-isolator designed to control systems with voltages up to 70 V through the system of digital 3 - 5V, e.g., microcontrollers. The module protects the system of...
5.0 (5)
Index: SPF-01937
Index: SPF-01937
Waiting for delivery
No scheduled delivery
Regular price €6.90 Price €6.90

TCA9548A - module with multiplexer I2C - Adafruit 2717

Module with a multiplexer TCA9548A allows you to connect 8 different digital I2C interface to one interface. Working voltage from 3 V to 5 V, the address of the output I2C bus...
4.9 (7)
Index: ADA-04915
Index: ADA-04915
Waiting for delivery
No scheduled delivery
Regular price €9.90 Price €9.90

Module with analog-digital multiplexer 74HC4051 - SparkFun BOB-13906

Module with 8-channel multiplexer CD74HC4051 allows you to connect up to 8 signals to a single analog output. The system can work as a demultiplexer and work with digital...
Index: SPF-07192
Index: SPF-07192
Waiting for delivery
No scheduled delivery
Regular price €4.50 Price €4.50

Velleman WPI301 - DS1302 SPI - real-time clock - 2 pcs.

Module with real time clock and backup battery. It allows you to read the time in hours, minutes, and seconds, date: month, day, year. The communication interface is the SPI...
Index: VEL-13018
Index: VEL-13018
Temporarily unavailable
No scheduled delivery
Regular price €10.50 Price €10.50

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...
4.9 (5)
Index: UCC-06506
Index: UCC-06506
Waiting for delivery
No scheduled delivery
Regular price €2.50 Price €2.50

MCP4725 DAC I2C converter - SparkFun BOB-12918

Digital-to-analog converter with I2C interface. The module allows you to receive signal in the form of analog voltage from any microcontroller that has I2C. It is powered with...
5.0 (2)
Index: SPF-02275
Index: SPF-02275
Waiting for delivery
No scheduled delivery
Regular price €8.50 Price €8.50

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).
5.0 (6)
Index: WSR-04455
Index: WSR-04455
Temporarily unavailable
No scheduled delivery
Regular price €3.50 Price €3.50
  • Discontinued product

SN65HVD230 CAN Board - Waveshare 3945

The module based on the SN65HVD230 allows connecting a microcontroller to the CAN bus. The chip is pinout compatible with the PCA82C250. The module is powered by 3,3 V and...
5.0 (10)
Index: WSR-06960
Index: WSR-06960
Waiting for delivery
Delivery 100 units scheduled for 06-02-2026
Regular price €4.50 Price €4.50

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...
4.8 (4)
Index: UCC-06505
Index: UCC-06505
Waiting for delivery
No scheduled delivery
Regular price €2.50 Price €2.50

MAX98357A decoder stereo DAC I2S - SparkFun DEV-14809

The stereo decoder's module DAC to communicate through the I2S interface. Built-in class D amplifier can provide up to 3.2 W of power to the speakers or headphones with...
5.0 (3)
Index: SPF-13062
Index: SPF-13062
Waiting for delivery
No scheduled delivery
Regular price €8.00 Price €8.00

Hub USB Hat - 4-port hub for Raspberry Pi 4B/3B+/3B/Zero - Waveshare 12694

Hat for the Raspberry Pi that adds 4 USB ports and a converter USB-UART. The device has dimensions of 65 x 30 mm, it works with Raspberry Pi 4B/3B+/3B and Zero and Zero W.
5.0 (14)
Index: WSR-08870
Index: WSR-08870
Waiting for delivery
Delivery 50 units scheduled for 13-03-2026
Regular price €8.50 Price €8.50

Converter USB-UART CP2102N - with microUSB connector - Pololu 1317

A module based on the CP2102 chip that allows data conversion between USB-UART standards. With the use of converter from Pololu you can exchange data between the PC equipped...
Index: PLL-19103
Index: PLL-19103
Temporarily unavailable
No scheduled delivery
Regular price €10.90 Price €10.90

Adafruit ATtiny817 seesaw - STEMMA QT / Qwiic - Arduino compatible - Adafruit 5233

Board based on ATtiny817 chip clocked at 20 MHz with 8 kB of flash memory and 512 B of RAM. It is also a seesaw Adafruit module, an I2C converter that allows you to extend...
5.0 (1)
Index: ADA-20369
Index: ADA-20369
Waiting for delivery
No scheduled delivery
Regular price €6.90 Price €6.90

Clock Generator Breakout 5P49V60 - Qwiic - SparkFun BOB-15734

SparkFun module based on the 5P49V60 chip . It enables the generation of a wide range of configurable frequencies of different types of signals using a single reference clock....
Index: SPF-21295
Index: SPF-21295
Temporarily unavailable
No scheduled delivery
Regular price €34.50 Price €34.50
  • Discontinued product

AW9523B Expansion Board - 16 I/O - I2C - for Arduino and Raspberry Pi - Waveshare 22132

Waveshare pins expander based on the AW9523B chip . It extends the functionality of the Arduino or Raspberry Pi with 16 additional I / O pins . It uses the I2C interface for...
5.0 (2)
Index: WSR-21728
Index: WSR-21728
Waiting for delivery
Delivery 10 units scheduled for 06-02-2026
Regular price €5.00 Price €5.00

PCF8574 - GPIO pin expander - I2C - STEMMA QT / Qwiic - Adafruit 5545

A lead expander by Adafruit equipped with the PCF8574 chip. It has 8 analog I / O GPIO pins , thanks to which it increases the design possibilities of the modules used. It...
Index: ADA-21909
Index: ADA-21909
Waiting for delivery
No scheduled delivery
Regular price €6.90 Price €6.90

Clock Generator - signal generator - 8kHz-160MHz I2C - Si5351A - STEMMA QT / Qwiic - Adafruit 5640

Clock signal generator from Adafruit, which was based on the SI5351A chip. It has been equipped with a 25 MHz crystal oscillator and has an internal PLL loop, thanks to...
5.0 (3)
Index: ADA-22384
Index: ADA-22384
Waiting for delivery
Delivery 2 units scheduled for 13-02-2026
Regular price €10.90 Price €10.90

Grove2USB-C - connector Grove to USB C - 5pcs - M5Stack A140

An adapter that allows you to easily connect the I/O pins of sensors and modules based on Grove technology to the D+ and D- pins supported by USB C. The set includes 5...
5.0 (1)
Index: MSS-24378
Index: MSS-24378
Waiting for delivery
No scheduled delivery
Regular price €5.00 Price €5.00

RS485/RJ45 converter - TCP/IP to serial port - Waveshare 20978

Converter enabling bidirectional communication between the RS485 and Ethernet interface. It offers supports protocols such as TCP/IP, MQTT and JSON , making it an ideal...
4.9 (12)
Index: WSR-24478
Index: WSR-24478
Waiting for delivery
Delivery 200 units scheduled for 27-02-2026
Regular price €22.90 Price €22.90

pHAT Stack - lead expander for Raspberry Pi - assembled kit - Pimoroni PIM322

The pHAT Stack board is the perfect solution for connecting up to 5 pHAT shields or 3 standard HAT shields to a Raspberry Pi. The kit comes fully assembled and requires no...
Index: PIM-24850
Index: PIM-24850
Temporarily unavailable
No scheduled delivery
Regular price €19.50 Price €19.50
  • Discontinued product

ISO1640 - bidirectional I2C isolator with isolated power supply without connectors - 5V/3.3V, 200mA - Pololu 5392

Pololu I2C isolator with galvanic signal isolation and separated power supply , equipped with ISO1640 system, enables safe, bidirectional I2C communication between two...
Index: PLL-26476
Index: PLL-26476
Waiting for delivery
Delivery 5 units scheduled for 20-02-2026
Regular price €7.50 Price €7.50

DS2482S-800 - I2C to 1-Wire converter 8 channels - STEMMA QT/Qwiic - Adafruit 6027

The Adafruit DS2482S-800 is an I2C to 8-channel 1-Wire converter with STEMMA QT/Qwiic connectors . It allows you to connect multiple DS18B20 sensors and provides full...
Index: ADA-26725
Index: ADA-26725
Waiting for delivery
Delivery 8 units scheduled for 13-02-2026
Regular price €27.50 Price €27.50