USB-TO-TTL-FT232-M is a compact USB-to-UART converter with a pre-soldered connector, designed for quick and secure connection to microcontrollers and serial modules. Featuring the FT232RNL chip, ESD protection, and LED indicators, the module is ideal for development, diagnostics, and embedded applications. A perfect choice for embedded systems engineers and prototype developers.

Step-Down Voltage Regulator D24V25F5. Pololu 2850

Step-Down converter D36V28F9 with an output voltage of 9 V, an input voltage from 9.8 to 50 V and a maximum output current of 3.4 A. Pololu 3785

Compact expansion with advanced data monitoring features, equipped with temperature, humidity, light sensors and RTC clock. With low power consumption, battery monitoring function and I2C protocol support, it is ideal for long-term battery-powered projects, offering precise measurements and efficient power management. Seeed Studio 114993446

Module with a 10-channel ADC ADS1263 converter with a resolution of 32-bits designed to work with the minicomputer Raspberry Pi and Jetson Nano. Waveshare High-Precision AD HAT

8 Channel 5V Relay Module

This ideal diode module allows for safe connection of two power supplies to a common output point, preventing reverse current flow. Built-in 20mΩ resistors allow for simple voltage compensation and load balancing between the power supplies. The board offers flexible input and output connectors, facilitating integration into industrial and hobby systems requiring high power reliability. Pololu 5398

Advanced ESP32-based LED driver board, designed for full compatibility with WLED and xLights. With a wide range of power supply options, ready-made connectors and built-in protection, it is ideal for creating both simple and complex lighting installations, offering convenience and reliability for both amateurs and professionals. Adafruit 6100

DC-AC converter, also referred to as an inverter. It converts a constant voltage (DC) of 12 V to an alternating voltage (AC) of 110 V, 200 V, 220 V or 280 V

Compact and powerful ESP32-based LED controller offering Wi-Fi and Bluetooth connectivity, 5 V outputs for addressable LEDs, full support for WLED/xLights, and a wFL connector with an included external antenna for improved range and connection stability. Adafruit 6167

Set for speech recognition compatible with Arduino. It consists of the Base Shield V2 expansion module, the voice command recognition module, the audio module and the necessary accessories. Seeed Studio 110020108

MEMS SPM1423 digital microphone module with PDM modulation. It communicates via the I2S interface. M5Stack U089

Expansion module with audio and video outputs dedicated to Raspberry Pi Pico boards. It has a VGA output, SD card slot, audio outputs and control buttons. Pimoroni PIM553

The module with a fingerprint sensor FPC1020A is designed for the M5Stack sets. The sensor has a built-in memory and can store up to 150 fingerprints. M5Stack U008

A USB-to-I2C adapter that allows a computer to act as an I2C bus controller, supporting speeds over 1 MHz, clock stretching, and bidirectional communication. The device offers full galvanic isolation between USB and I2C, protecting the computer from damage and interference, and provides an isolated 3.3V or 5V voltage, eliminating the need for an external I2C power supply. With JST SH and goldpin connectors, USB-C support, a virtual serial port, and a Python library, the adapter is a versatile tool for working with I2C devices in both hobbyist and professional projects. Pololu 5397

I2C LED driver chip has the ability to PWM each individual LED in a 16x9 grid. Adafruit 2946

A4988 Stepper Motor Driver Carrier with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. Pololu 2980

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 stepper motor driver for precise control of bipolar motors, offering six microstepping modes (from full to 1/32). It operates within a voltage range of 8.2V to 44V and delivers up to 1.5A per phase without cooling or up to 2.2A with a heatsink/fan, ensuring smooth and stable operation even at high speeds. Compatible with the popular A4988 and DRV8825 drivers, with an integrated regulator and overheating, overload, and short circuit protection, the TB67S581FNG is a reliable and versatile solution for applications requiring precise motion control. Pololu 2988

This set of two quadrature encoders for 20D extended-shaft motors provides precise rotational speed monitoring with 20 pulses per motor revolution. The devices utilize magnetic disc and Hall-effect sensors operating from 2.7-18V, and the digital outputs can be connected directly to a microcontroller. The encoders mount directly to the back of the motor, and the compact design and 6-pin JST PH connectors facilitate integration into robotic projects and control systems. Pololu 5661