Module with 4 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 4244

Multi-functional environmental sensor consisting of SHTC3 temperature and humidity sensor, BMP280 pressure sensor, VEML7700 ambient light sensor and ML8511 UV sensor. DFRobot SEN0500

MP3 panel with a HiFi amplifier for installation in an audio device. It allows you to play files from USB memory, SD card, via the audio connector and Bluetooth. It has a built-in FM receiver

This shield makes it easy to control two high-power DC motors with your Arduino or Arduino-compatible board. Its twin discrete MOSFET H-bridges support a wide 6.5 V to 30 V operating range and are efficient enough to deliver a continuous 18 A without a heat sink.

Pololu 6V Step-Up Voltage Regulator U3V50F6

Power filter board dedicated to Raspberry Pi minicomputers and DAC audio modules. It integrates various types of capacitors and allows you to remove power noise. DFRobot DFR0940.

IPS 8.8" LCD display with built-in speakers. Equipped with HDMI interface and has a resolution of 480x1920 pixels. Waveshare 8.8inch Side Monitor

Radio module with operating frequency of 433 MHz. Communication takes place via the UART serial interface. It is supplied with the voltage in the range from 3.3 to 5 V. DFRobot TEL0114

A module with an EMG sensor that detects the activity of human muscles and neurons. Generates an analog signal in the range from 0 to 3 V on the output, it does not require the use of a conductive gel. DFRobot SEN0240

Module with SIM868 designed for GSM, GPRS communication and GNSS positioning. It can communicate within the Bluetooth 3.0 standard. SB Components 21895

This is a little 5" TFT display with WVGA 800x480 resolution and it has a resistive touchscreen overlay. The driver board only has an HDMI input but for Raspberry Pi, BeagleBone Black and other computers. Adafruit 2109

USB-UART converter based on the CP2102N chip. Compatible with a voltage of 3.3 V, it has been equipped with a USB type C connector. Adafruit 5335

Safety system for two Li-Ion cells with 11.1V. The module has the function of charging cells with the balancer, discharging and the function of protecting the cells against discharge. Cells can be charged with continuous current up to 20A and discharged with current 40A. modBMS40A

Alphanumeric LCD display 2x16 characters, gray signs, green-yellow background. Artronic LCD-PC-1602A-YHY Y / G-1L E6 C

3 mm LED matrix. The matrix contains 35 LEDs (5x7 system) in red. The diodes are connected by a common cathode.

MicroUSB 2.0 cable with plug for USB A 2.0 with socket. The extension is 50 cm long. The USB socket is placed on a wide mount with mounting holes, which allows for a durable and reliable connection.

Module with 4 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 4404

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 4304

Panel thermometer with a 7-segment LED display with a measuring range from -50 to 110 °C. It is powered with the voltage of 12 V

Adafruit 2217