PC817 module with 4 optocouplers

Module with the TMC2209 bipolar stepper motor driver. It enables control with a supply voltage ranging from 4.75 to 29 V and a current of up to 2.8 A

A set of two optical quadrature encoders for Polol micromotors with a two-sided extended shaft, compatible with the LP, MP, and HP series, 5V power supply. Polol 2590

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 0.7″ × 0.7″ yet delivers a typical continuous output current of up to 2.6 A and features reverse voltage protection.

2-channel USB to CAN/CAN FD adapter with CAN protocol analyzer function. Supports decoding of CAN 2.0A, CAN 2.0B, ISO11898-1 and CAN FD V.1.0 standards. Dedicated to industrial applications. Waveshare USB-CAN-FD

Module with a 5x20 mm fuse with a working voltage up to 250 VAC and a current of 500 mA. A kit for self-assembly. SparkFun KIT-15702

An advanced speed controller designed to power three-phase brushless motors in various applications, such as driving robots, walking robots or gimbals. Supports input voltage range from 12V to 56V. Maximum constant current is 60A. Makerbase ODrive-S

Module with 4 relays controlled by the I2C interface. Each relay can switch currents up to 40 A at 28-380 V AC. SparkFun KIT-16833

HMI (Human-Machine Interface) operator panel for visualization and interaction with automation systems. It uses a 7" LCD display with 800x480 pixel resolution with a touch panel. It supports various communication protocols such as RS232 and RS485. Samkoon EA-070B

Dual VNH3SP30 Motor Driver Carrier MD03A

A single-channel DC motor controller with a UART TTL interface. It is powered from 4.5 V to 48 V and can deliver up to 2.2 A of current. Board with soldered connectors. Pololu 5062

Step-down converter with adjustable output voltage 1.2V-35V and current efficiency 9A. The module allows to limit the current consumption at the output via a multi-turn potentiometer. modxl4016sd

Module with a 3-axis gyroscope (ITG 3200 system). The measuring range is ± 2000 ° / s. The I2C interface is used for communication. The module has a low power consumption (typically 6.5 mA). The module has a connector in accordance with the Grove standard. Seeed studio 101020050

Ultrasonic distance sensor MB1030 with a range from 0 to 645 cm. It has an output in the form of a serial interface, analog signal or generates an impulse whose duration is proportional to the measured distance. Pololu 793

HMI module with a 3.2" TFT color LCD display with a resolution of 400x240 px. Equipped with a resistive touch panel. Communication via UART interface. Nextion NX4024T032

Industrial module with 8 relays and 8 digital inputs. It communicates via the RS485 interface and supports communication using the Modbus RTU protocol. Waveshare Modbus RTU Relay (D)

Two-channel driver of direct current (DC) motors with an operating voltage from 5 to 30 V and a maximum continuous current of 10 A. It can be controlled by a PWM signal or by means of built-in buttons. Cytron MDD10A