RTC DS1302 real time clock module with CR2032 battery holder and solder pins

8-channel solenoid driver controlled via I2C. Compatible with 3V/5V logic, features STEMMA QT / Qwiic connectors. Adafruit 6318

Driver board designed for DDSM series servo motors, featuring an ESP32 microcontroller, 2.4 GHz WiFi connectivity, RS485 and UART interfaces, and an integrated 5 V buck converter for powering a Raspberry Pi. Supports up to four DDSM115 or DDSM315 motors, or up to four DDSM210 motors, providing both wired and wireless control as well as JSON-based command support. DDSM Driver HAT (A)

Compact stepper motor controller with the TMC2208 system with an operating voltage from 4.75 to 36 V. It offers smooth, quiet operation, high efficiency, various operating modes and easy configuration. It is controlled via the STEP/DIR interface and is an ideal solution for 3D printers and similar applications. BIGTREETECH TMC2208 V3.0

Module with a logarithmic digital potentiometer based on the DS1841 chip. Equipped with a STEMMA QT connector, it communicates via the I2C interface. Adafruit 4570

Waveshare DDSM Driver HAT (B) is an advanced hub motor driver for DDSM400 motors, based on the ESP32, featuring both wired (USB, UART) and wireless (WiFi, ESP-NOW) communication. It supports control of up to 6 motors using JSON commands and integrates with Raspberry Pi, making it a suitable solution for mobile robotics and multi-motor system projects.

8-channel analog acquisition module with default current measurement mode (0–20 mA), designed for industrial applications requiring stable and precise data acquisition. Compatible with current sensors, it supports RS485 communication and the Modbus RTU standard, allowing easy integration with SCADA systems and PLC controllers. Galvanic isolation and noise immunity make it suitable for environments with high EMC requirements. Ideal for industrial process monitoring, environmental parameter measurement, and building automation.

The module with a digital stereo audio amplifier is equipped with Bluetooth communication. The system allows you to connect two speakers with an impedance from 4 Ω to 8 Ω and a power of 15 W per channel

The module is designed for easy and reliable switching between two different power sources. It ensures safe use of two power sources (with voltage from 1.6 to 5.5 V) without the risk of damaging components. Adafruit 5830

Finger Vein Scanner Module (A) is an advanced biometric module for finger vein identification, offering a high level of security, low power consumption, and resistance to harsh environmental conditions. Its fully integrated design and support for standard communication protocols facilitate its use in smart locks, access control systems, and embedded devices, especially in applications requiring reliable user authentication without contact with the skin surface.

BMS protection module designed for 13 Li-Ion cells. It has a charging function with balancer option and an over-discharge protection function. Dedicated to an electric bicycle or scooter

Step-down DC-DC converter module that converts a 12 V or 11.1 V output voltage (e.g. from a lithium battery) to a voltage in the range of 1.8 V to 5.1 V. It has a power output of up to 60 W, and with an output current of up to 18 A, the module can be used to power a 5 m WS2812 RGB LED strip. DFRobot DFR1025

The board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Adafruit 1752

The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. The power pin provides the 5V @ 500mA direct from the USB port and the RX/TX pins are 3.3V level for interfacing with the most common 3.3V logic level chipsets. Adafruit 954

Step-Down DC-DC converter module based on the D36V6F5 chip. Input voltage 5.2..50V, output voltage 5V (max. 600mA). Pololu 3792

Sound recording module that can store sounds up to 40 minutes long. It allows you to download the recordings to a computer via USB type C. DFRobot DFR0745

BOB-13263

Single-channel brushed DC motor driver based on the MPQ6612A chip, enabling bidirectional motor control with a supply voltage of 4-40 V and up to 4 A continuous current. The module offers motor current sensing, active current limiting, overcurrent and thermal protection, and supports PWM control up to 200 kHz. The carrier board includes factory-soldered connectors, allowing the module to be used without additional soldering. Pololu 5286

The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLL\'s and clock dividers using I2C instructions. Adafruit 2045