12V relay module with a radio receiver in a set with a remote control operating at 433 MHz.

The protection circuit for one Li-Ion cell with a voltage of 3.7 V. It has the function of charging, discharging and over-discharge protection. The cells can be discharged with a continuous current of up to 8 A

16-channel IO expander with 7 analog inputs with 10-bit resolution. Communicates via USB interface. It has compact dimensions, making it suitable for small devices. Version with connector at the top. Numato Lab GP160002

1-channel LED dimmer with a voltage of 12-24V and a power of 360W, ensuring precise brightness control in the range from 0 to 30A. The elegant black design and wide operating temperature range from -20°C to 60°C make it an ideal solution for a variety of lighting applications.

Module with three voltage analog outputs ranging from 0 to 10 V. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3079ADAM

Audio amplifier module with three output channels. It can be powered from 12 to 24 V and has two 50 W outputs (left and right) and one 100 W output (bass). Equipped with Bluetooth 5.0 communication

Audio receiver with Bluetooth 4.2 module. It is powered by a microUSB connector or a battery and is equipped with a charging circuit

Versatile USB protocol converter, offering four channels (RS485, RS232, two TTL) and 12V, 5V and 3.3V power supply, ideal for IoT and industrial applications. Compatible with Windows, Linux, LattePanda and Raspberry Pi, no drivers required, and optional installation allows easy device management. DFRobot TEL0185

Compact stepper motor controller with the TMC2208 system with operating voltage from 4 to 35 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

The Modeling PWM Signal Mixer Module is a compact device that allows mixing of PWM signals in modeling, allowing for a variety of control of components such as guns, plates and motors. It can be precisely tailored to the user\'s needs and also offers flexibility in control priority settings.

ROB-09014 - OpenServo, RoHS

The SparkFun OpenLog is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB. DEV-13712

The pad for use with shallow Feather series contains two TB6612 chips that allow you to control DC motors or stepper motors. The I2C interface is used to communicate with the overlay. Adafruit 2927

Class D digital audio amplifier with Bluetooth module. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage in the range from 9 to 24 V. NS-01G

Rotation Sensor

High-quality digital-to-analog converter that allows for pure stereo audio playback without the need for I2C configuration or the MCLK pin. It supports I2S signals (BCLK, WSEL, DIN) and audio formats up to 32 bits and 384 kHz, providing an excellent signal-to-noise ratio (110 dB). Audio output is available via a 3.5 mm jack or on-board pads, and the module works best as a line output to amplifiers and audio systems. Adafruit 6251

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 2989

An H-bridge capable of controlling one DC motor in both directions or two unidirectional motors at voltages from 4.5 to 44 V and continuous currents up to 1.3 A. The module offers three operating modes (PH/EN, IN/IN, half-bridge), built-in current limiting and measurement, and protection against overheating, overload, undervoltage, and reverse polarity. Its compact design, flexible logic power supply (1.8–5.5 V), and simple control make it ideal for robotics, automation, and hobby projects. Pololu 4971

Driver for bipolar stepper motors with STEP/DIR interface, microstepping up to 1/16 and maximum current up to 1.5 A at 5 V or 1 A at 3.3 V, version without soldered headers. Pololu 5344

LED adapters that allow easy control of LEDs (dimming, flickering, pulsing) in Tiny FX based projects. They feature AVX 9276 connectors and built-in 33Ω resistors, eliminating the need for soldering and external components. Compact and durable, they are great for models, LEGO® scenes and light decorations. Pimoroni PIM751