A 2-channel DAC converter module with an output voltage range from 0 to 10 V. It is powered by 3.3 V to 5 V and communicates via I2C interface (Gravity connector). It is used as a controller in industrial applications. DFRobot DFR0971

DAC converter module with current output in the range of 0 to 25 mA. It is powered by 18 V to 24 V and communicates via I2C interface (Gravity connector). It is used as a controller in industrial applications. DFRobot DFR0972

Camera module with OV5647 sensor that works with Raspberry Pi. It has an integrated IR filter and a Fisheye lens with a 220° viewing angle. ArduCAM B0428

Audio preamplifier based on the NE5532 chip. Powered with symmetrical DC voltage in the range from 9 to 15 V

A compact buck module that reduces input voltage from 4 to 65 V to a stable 3.3 V at up to 700 mA. It features high efficiency, low quiescent current (<0.2 mA), and short-circuit and thermal protection, ensuring safe and efficient operation. Its small size and ease of integration make it ideal for mobile devices, battery-powered designs, and systems requiring stable power. Pololu 5432

2-channel stereo audio mixer module. It has four outputs, on which the summed signal from 2 inputs is available. It is powered with the voltage from 5 to 19 V

A compact voltage converter module that reduces input voltage from 6.3 to 65 V to a stable 6 V at currents up to 700 mA. It features high efficiency, low quiescent current (<0.4 mA), and short-circuit and thermal protection, ensuring safe and efficient operation. Its small size and ease of integration make it ideal for mobile devices, battery-powered designs, and systems requiring stable power. Pololu 5434

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 66.7 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5443

A compact voltage converter module that reduces input voltage from 9.4 to 65 V to a stable 9 V at up to 700 mA. It features high efficiency, low quiescent current (<0.2 mA), and short-circuit and thermal protection, ensuring safe and efficient operation. Its small size and ease of integration make it ideal for mobile devices, battery-powered designs, and systems requiring stable power. Pololu 5436

A compact voltage converter module that reduces input voltage from 12.5 to 65 V to a stable 12 V at currents up to 700 mA. It features high efficiency, low quiescent current (<0.2 mA), and short-circuit and thermal protection, ensuring safe and efficient operation. Its small size and ease of integration make it ideal for mobile devices, battery-powered designs, and systems requiring stable power. Pololu 5437

Step-Up DC-DC converter module. It has an input voltage of 1.3 to 16 V, an output voltage of 7.5 V and a maximum input of up to 2 A. Pololu 4943

Audio module that allows you to play sounds from a USB memory, microSD card, via Bluetooth or FM radio. It is equipped with a microphone, 3.5 mm audio jack and control buttons

Bluetooth 4.1 audio receiver with 3.5mm Jack audio output. It allows you to play files via Bluetooth, from mass memory (pendrive) or microSD card and supports WAV, APE, MP3 and FLAC formats. XY-BT-L

The STM32W108B-SK kit provides a complete platform for learning and developing wireless applications based on STM32W108 microcontrollers. The integration of radio modules, support for ZigBee protocols, and a rich set of development tools make it a versatile solution for designers of wireless communication and IoT systems.

Bluetooth audio receiver module in the set with a 3.5 mm Jack adapter. It enables wireless transmission of sounds. It is equipped with a 3.5 mm audio jack, microUSB socket and control buttons

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 44 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5441

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 200 mV/A and a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5442

WiFi module for FriendlyELEC computers

STM32G081CBT6, 32-bit STM32G0 family microcontroller, Arm Cortex-M0+ core, 64 MHz, 128 KB of Flash memory, 36 KB of RAM, LQFP48