A compact converter designed to drive LEDs in series and parallel circuits. The device generates voltages up to 40V and currents up to 400mA from a 3-5V supply, with the output current adjustable via mini DIP switches. The board features a built-in 1.2A switch, overvoltage protection, and PWM LED dimming. Adafruit 6354

An ESP32-S3 HMI display with a dual-core 240 MHz Xtensa LX7 processor, offering fast performance and extensive wireless connectivity via Wi-Fi and Bluetooth 5.0. The 3.5-inch IPS screen with a resolution of 480x320 provides excellent image quality and precise capacitive touch. The device supports AI features such as speech recognition and synthesis, as well as RTC, battery charging, audio, and an SD card slot. Compatibility with the Arduino IDE, ESP-IDF, and LVGL enables the rapid development of modern IoT interfaces and applications. Elecrow CrowPanel Advance 3.5"

A protection module that acts like a perfect diode, allowing current to flow in only one direction with minimal energy loss. It supports voltages from 2.7V to 23V and currents up to 5A, providing effective protection against overvoltages and reverse current. It features an IMON output for current monitoring and a Power Good indicator to indicate correct operation. Its screw terminals and compact design make it ideal for battery-powered projects. Adafruit 6359

Four-channel relay module with optoisolation, allowing control of loads up to 10 A at 250 V AC or 30 V DC. Thanks to standard interfaces and separate JD-VCC power supply, it is compatible with most microcontrollers and automation systems, ensuring safe integration and convenient installation.

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with 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 its 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 5452

A set with a prototype breadboard equipped with a Grove connector. Seeed Studio 103020232

Module with 2-element 14-segment display with red backlight. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 104020132

A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with 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 its 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 5453

Digital audio amplifier dedicated to woofers. It has one channel with a power of 50W and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 8 to 25 V

Pink LED strip with SMD 5050 diodes. It is powered by 12 V DC, has a length of 5 m and 120 LEDs/m. Protection class IP65 (waterproof)

Module with temperature and humidity sensor TH02. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020074

A small module with Flash memory W25Q65 with a capacity of 64 Mbit (8 MB). It communicates via the SPI interface

Touch keyboard module with 8 buttons based on the TTP226 chip. It is equipped with a connector with derived signals and LEDs that indicate the state of each button

White Cold LED strip with SMD 5050 diodes. It is powered by 12 V DC, has a length of 5 m and 120 LEDs/m. Protection class IP65 (waterproof)

ToF distance sensor module based on the VL6180X system. It offers a range of 2 to 50 cm and communicates via the I2C interface

Module with LCD TFT display with a diagonal of 1.8" and a resolution of 160x128 px. Communication via SPI interface. Waveshare Pico-LCD-1.8

Cold White LED strip with SMD 5050 diodes. It is powered by 12 V DC, has a length of 5 m and 120 LEDs/m. Protection level IP21

Camera module with OV7670 sensor with a resolution of 640x480 px (0.3 MPx). Communicates via the SCCB (Serial Camera Control Bus) interface

UART-RS485 converter module. The board was equipped with a Grove connector. Seeed Studio 103020193

Adapter with two DIP8 sockets and one DIP8 male connector