The core of a small robot, either as an auxiliary controller atop a Raspberry Pi base or as a complete control solution on its own. Its Atmel ATmega32U4 microcontroller comes preloaded with an Arduino-compatible bootloader. This version does not include any through-hole components or connectors, allowing for customized assembly or standalone use. Pololu 3118

A 5-channel flame detector module for detecting a flame over a larger area. Detects fire with 5 sensors that are placed on the module every 30 degrees. It has a digital and analog output. modFLAME-5CH

Adafruit 640 - Stainless Thin Conductive Thread - 2 ply - 23 meter/76 ft

Module with 6-axis IMU sensor MPU6886, which combines a 3-axis accelerometer and a 3-axis gyroscope. M5Stack U095

Module with 10 addressable RGB LEDs APA102C. Each of the LEDs is independently controlled via the I2C interface, and the line address is modified, so that the modules can be connected with each other. SparkFun COM-18354

Touch keyboard module with 4 buttons based on the TTP224 system. It is equipped with a connector with derived signals and 4 LEDs signaling the state of each button

Pololu 5650 is a JST PH and SH 2-pin connector adapter designed for integration with prototyping boards and modules with a 2.54 mm pitch. It allows conversion between JST PH and SH standards and enables quick wire connections in power and communication projects.

Module with e-Paper display, 1.54" diagonal and 200x200 px resolution. SPI interface. Waveshare 1.54inch e-Paper Module

TB67S128FTG stepper motor driver module powered by 6.5-44V voltage and 2.1A operating current. The controller allows you to control the movement of the engine with up to 8 different resolutions (up to 1/128 step). Pololu 2998

Module with EEPROM memory with a capacity of 256 Kbit (32 kB) with the AT24C256 chip in the DIP version. It communicates via the I2C interface

A miniature camera module with a 5MP OV5647 sensor dedicated to the Raspberry Pi. Designed for projects where image size and quality are important. Waveshare RPi FPC Camera (B)

A motion-activated module that activates the circuit when tilted 10° from the horizontal position. Equipped with double-sided connection points for conductive thread, it can be easily incorporated into clothing, bags, or interactive decorations. The module supports voltages up to 24 V and a maximum current of 25 mA, and its compact size makes it convenient for small e-textile projects. Kitronik 2710

4-channel stereo audio mixer module. It has one output to which the summed signal from 4 inputs comes out. It is powered with the voltage from 5 to 12 V

Universal test lead with LED backlight for Uni-T multimeters. Uni-T UT-L17

DFRobot DFR1184 module with a 15-bit ADS1115 converter enables precise voltage measurements of 0–10 V from industrial sensors. The dual-channel design, support for I2C/UART, and compatibility with popular platforms make it an effective solution for automation systems, environmental monitoring, and energy management.

DFRobot SEN0634 camera module with OV9281 sensor and global shutter allows capturing sharp images of fast-moving objects. High sensitivity in low-light conditions and full compatibility with Raspberry Pi 4B and 5 make it a suitable solution for projects requiring precise motion recognition and real-time image detection.

4-channel stereo audio mixer in a metal housing. It has one output, on which the summed signal from 4 inputs is available. It is powered with the voltage from 5 to 12 V.