Rotary connector for 4 wires. Each conductor can carry currents up to 1A at up to 240V

Module with 16-bit AD5693R DAC converter with built-in EEPROM memory. Equipped with a STEMMA QT connector, it communicates using the I2C bus. Adafruit 5811

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

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5250

Module with PIR S16-L221D motion sensor. The board is equipped with a Grove connector and communicates via a digital interface. Seeed Studio 101020353

Compact and energy-efficient Meshtastic, MeshCore node designed for mobile field applications, integrating a LoRa module (862-930 MHz), L76K GPS and nRF52840 microcontroller. The device offers ready-to-go operation without programming, power supply from USB-C, solar panel or battery (built-in 2000mAh battery), and a 1.3" OLED display for real-time monitoring. With Bluetooth 5.0 connectivity, Grove interface and support for multiple navigation systems, it is a reliable tool for building decentralized mesh networks, monitoring location and expanding IoT projects. Seeed Studio 114993649

The compact MIDI synthesizer based on the XIAO ESP32-C3 and SAM2695 chip is a portable sound studio that lets you create music anywhere. With a built-in speaker, hundreds of instrument presets and support for up to 64-voice polyphony, it offers rich sounds and three modes: test, metronome and multitrack. With its open source, ease of use and pocket-sized format, it is the perfect tool for musicians, hobbyists and DIY creators. Seeed Studio 107990333

The 10 Values of 20 Transistor Kit is a versatile and essential kit for electronics enthusiasts and professionals, featuring a variety of transistor types, ideal for a wide range of applications from simple DIY projects to advanced electronic circuits

LED strip with addressable RGB WS2813 diodes on a black PCB. It is powered by 5 V DC, has a length of 1 m and 60 LEDs/m. Protection degree IP67

3-pin cable with a length of 30 cm and 28 AWG. A one-sided JST ZH 3-pin female connector that is compatible with the 3-pin connector of the Sharp GP2Y0A51 analog distance sensors. Polol 2411

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

A modern current sensor combining the Hall effect with an inductive coil, which allows for precise measurements of both the DC and AC components up to 5 MHz. Thanks to its lightning-fast response time and low path resistance, it is perfect for motor control systems, power converters and protection systems. Pololu 5232

NRF24L01 module with UART serial interface. It has a built-in antenna and a microcontroller that acts as a converter. It allows the design and testing of 2.4 GHz radio communication via a serial interface

WiFi/BLE module that supports both the 2.4 GHz and 5 GHz WiFi bands, as well as Bluetooth Low Energy (BLE 4.2) communication. It has a built-in chip antenna and 2.54 mm pitch connectors, which greatly facilitate prototyping. Tibbo WA2000C

NRF24L01 module with USB type A connector. It has a built-in antenna and a USB converter. Allows you to design and test 2.4 GHz radio communications using a PC

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

Module with 8x8 RGB LED matrix, MY9221 LED drivers and STM32F031 microcontroller. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 105020073