Module with 9 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4209

Module with 5 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4245

Module with 11 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4211

Module with 5 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4345

Module with 5 QTRX type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4445

Module with 6 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4106

Module with 6 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4206

Mini keyboard with 16 buttons and RGB backlight. Equipped with a connector compatible with Grove, it communicates via the I2C interface. Adafruit 3954

5" TFT LCD display with touch screen. It was equipped with DSI interface for image display and I2C interface for touch screen. Resolution 800x480 pixels. DFRobot DFR0550

Module with 5 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4105

Converter dedicated to industrial applications. It provides communication between the USB interface and the RS232 and RS485 serial standard

Module with 4 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4344

8x7 LED matrix display module (56 diodes). The Charlieplexing technique used allows to control each LED with 8 outputs. SparkFun COM-13795

Module with 5x5 RGB LED matrix display (25 LEDs). It uses the IS31FL3731 driver and communicates via the I2C interface. Pimoroni PIM435

The module with a black and white OLED display with a diagonal of 1.12" and a resolution of 128x128 pixels. It uses the SH1107 controller and communicates via the SPI interface. Pimoroni PIM473

This 3-port HDMI splitter with manual switching allows easy connection of multiple devices to a single HDMI input, supporting up to Full HD 1080p with no need for external power

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

This compact Bluetooth AUX adapter with USB-C enables wireless audio streaming to traditional audio equipment, transforming any system into a modern wireless solution.