Decade Resistance Box - a module for regulating the resistance

DC-DC Step-Up/Step-Down Converter Module. It has an input voltage of 1.4 to 16 V, an output voltage of 9 V and a maximum output current to 1 A. Pololu 4968

Adafruit 2094 - JTAG (2x10 2.54mm) to SWD (2x5 1.27mm) Cable Adapter Board

RS232/RS485 to WiFi and Ethernet converter that provides easy communication between RS232 or RS485 interface and WiFi wireless network and wired LAN network. Supports the Modbus RTU protocol. USR-W630

Raspberry Pi Camera Module, Fisheye Lens, Wider Field of View. Waveshare RPi Camera (J)

BOB-12009

Single-channel DC motor controller that allows the motor to be controlled with a voltage range of 6-30V and a current of up to 20A. Allows engine speed control using PWM signals. MD20A cytron

The S9V11F5S6CMA switching step-up/step-down regulator efficiently produces a fixed 5 V (default) or 6 V (selectable) output whether it is higher or lower than the input voltage, which can range from 2 V to 16 V. (Note: minimum start-up voltage is 3 V, but it operates to 2 V after that.)

USB - UART TTL converter based on the FT232RL chip, the module is equipped with a miniUSB socket. Works with 3.3V or 5V voltage levels.

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with soldered connectors. Pololu 5042

MP3 panel with LCD display for installation in the audio device. It allows you to play files in MP3, WAV and WMA format from USB memory, microSD card, via AUX and Bluetooth 5.0. It has a built-in FM receiver

HAT module with TB6612FNG motor driver and PCA9685 PWM driver designed for Raspberry Pi minicomputers. The board is equipped with a 40-pin connector. Adafruit 4280

Pololu Simple High-Power Motor Controller 18v25

Real time clock (RTC) module PCF8523. It uses the STEMMA QT connector and communicates via the I2C interface. Adafruit 5189

5V relay module with IR receiver. Comes with a remote control

Three-axis accelerometer module with MMA8452 system; I2C bus