UART-RS485 converter module. It enables communication of Arduino boards with industrial modules. DFRobot DFR0259

STM32G031C8T6, 32-bit STM32G0 family microcontroller, Arm Cortex-M0+ core, 64 MHz, 64 KB of Flash memory, 8 KB of RAM, LQFP48

Module with 16 relays with a maximum switching current of 7 A. It communicates via a USB interface. Numato Lab RL160001-24

Module with ToF VL53L5CX sensor with a matrix of 64 pixels and a range of up to 4 m. Communicates via the I2C interface. Pololu 3417

4-colour e-Paper display with a diagonal of 2.13" and a resolution of 250x122 px. Communicates via SPI interface. Without PCB. Waveshare 2.13inch e-Paper (G)

A computer performance monitor that allows you to display CPU, GPU, RAM and disk usage. It uses a 7" display with a resolution of 1024x600 pixels. It has a built-in microphone and an audio spectrum display function. It is connected to the computer via a USB port. Waveshare 7inch USB Monitor B

Module with a 4-element 14-segment display. The board is equipped with a Qwiic connector and communicates via the I2C interface. SparkFun COM-16919

Step-Down converter with adjustable output voltage from 4.2 V to 15 V and output voltage up to 45 V. It is equipped with reverse voltage protection, input undervoltage lockout, overload and short circuit protection. Pololu 4855

Module with a 4-element 14-segment display. The board is equipped with a Qwiic connector and communicates via the I2C interface. SparkFun COM-18566

ST Microelectronics’ STTS22H digital temperature sensor module, featuring a Qwiic connector, offers accuracy from -40°C to 125°C without the need for additional calibration. The sensor consumes only 1.75 µA in single measurement mode, making it ideal for low-power applications, and additional features such as a configurable interrupt pin and the ability to select two I2C addresses increase its versatility. SparkFun SEN-21273

LED strip with COB diodes in white (warm). It is powered by 12 V DC, has a length of 1 m and 384 LEDs/m. Protection level IP20

The expansion board (shield) with the DA16200 WiFi module. It is equipped with a Qwiic connector and is an excellent solution for IoT projects. SparkFun WRL-18567

Long-range Sub-GHz wireless RF transmitter and receiver module, capable of operating in the 868 MHz frequency band. The integrated architecture allows the use of a minimum number of external components while maintaining maximum design flexibility. Hoperf RFM22B-868S2

Step-Down converter with adjustable output voltage from 4.2 V to 15 V and output voltage up to 45 V. It is equipped with reverse voltage protection, input undervoltage lockout, overload and short circuit protection. Pololu 4875

Module with 1.9" black and white e-Paper display. Built from 91 segments, communicates via the I2C interface. Waveshare 1.9inch Segment e-Paper Module

Uninterruptible power supply (UPS) module allowing continued operation and safe shutdown after a power failure. It provides an output voltage of 5 V and allows the reading of battery operating parameters via the I2C bus. Waveshare UPS Module Mini

LED strip with COB diodes in pink. It is powered by 12 V DC, has a length of 5 m and 384 LEDs/m. Protection level IP20

A computer performance monitor that allows you to display CPU, GPU, RAM and disk usage. It uses a 5" display with a resolution of 800x480 pixels. It has a built-in microphone and an audio spectrum display function. It is connected to the computer via a USB port. Waveshare 5inch USB Monitor B

LED strip with COB diodes in cold blue. It is powered by 12 V DC, has a length of 1 m and 384 LEDs/m. Protection level IP20

AT93C46-10SU-2.7, Three-wire Serial EEPROM 1K, SOIC-8