0-5V to 0-20mA voltage-current converter

RoboClaw 2x160A Motor Controller is a two-channel DC motor driver, operating voltage: 10.5..60V, maximum continuous current: 120A, easy implementation of feedback loops with PID controller, safety systems. Pololu 3582

Module with LM386 audio amplifier and loudspeaker. The board is equipped with a Grove connector and is controlled by a PWM signal. Seeed Studio 107020001

Audio module with DAC, line output and display, designed to work with the Raspberry Pi. Pimoroni PIM483

Audio preamplifier based on NE5532 chips. Equipped with an input selector function. Display and remote control included

Module with 8 inputs for data acquisition from DS18B20 temperature sensors. It communicates via the RS485 interface and supports the Modbus RTU protocol. The board is enclosed in an industrial housing. Wellpro WP3066ADAM

Keyboard module with 12 buttons (3x4) and analog output

DC-DC Step-Up/Step-Down Converter Module. It has an input voltage of 1.4 to 16 V, an output voltage of 5 V and a maximum output current of 1 A to 1.5 A. Pololu 4965

Bluetooth 4.2 audio receiver with 3.5 mm jack audio output. It allows you to play files via Bluetooth and supports WAV, WMA APE, MP3 and FLAC formats. MH-M28

Pololu - 2511

TB6612FNG dual DC motor controller module. It can be used as a stepper motor driver or solenoid driver. Adafruit 2448

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with connectors for self-assembly. Pololu 5037

Module with 2 SSR relays with a load of up to 3 A. The board communicates via the USB interface. Numato Lab SSR20001-DC

Module with 1 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4241

Module with 2 SSR relays with a load of up to 3 A. The board is equipped with the ULN2003 system and communicates via a digital interface. Numato Lab SSRC20001-AC

The BMS module is designed for 2 Li-Ion cells. It is equipped with a micro USB and USB type C connector and supports fast charging (QC).

Miniature ESC type controller for a DC motor with an input from 3.7 V to 5 V. Offers an additional output current of up to 1.5 A and allows you to control the motor in a channel mixing device