et with a measuring module and a probe for measuring electrical conductivity. It allows you to measure the salinity of water and soil. It has a Gravity analog output interface. DFRobot DFR0300-H

An efficient step-down converter that reduces the input voltage to 12 V at a maximum current of 100 mA, offering high efficiency due to low quiescent current (<50 μA). It supports input voltage from 12 V to 65 V, has a Power Good (PGOOD) function, an EN input for system shutdown, and short circuit and overheat protection, making it a reliable and energy-efficient solution. Pololu 5377

The 4" E Ink Spectra 6 e-paper display with HAT+ board is an advanced solution for color information presentation, characterized by low power consumption, high contrast, and compatibility with multiple platforms. With full SPI support and Raspberry Pi HAT+ standard, it is ideal for projects requiring clear, aesthetic, and energy-efficient content display.

Expansion board compatible with STM32 Nucleo. Allows you to prototype solutions with digital microphones. STMicroelectronics X-NUCLEO-CCA02M2

Module with a BME688 sensor for measuring gas concentration, pressure, temperature and humidity. I2C or SPI communication. SparkFun SEN-19096

Allegro\'s TMR sensor module enables precise, non-contact current measurement without breaking the circuit. It offers high sensitivity, low power consumption, an analog output proportional to the magnetic field, and a threshold detection (FLAG) function. Its compact design, AC/DC support, and easy installation make it ideal for energy-efficient and safe current monitoring systems. Pololu 5355

BASIC-programmable Ethernet Module, Tibbo Technology, RoHS

Compact expansion with advanced data monitoring features, equipped with temperature, humidity, light sensors and RTC clock. With low power consumption, battery monitoring function and I2C protocol support, it is ideal for long-term battery-powered projects, offering precise measurements and efficient power management. Seeed Studio 114993446

Convenient to use retractable 3in1 USB cable with USB A plug and three output connectors: microUSB, USB Type C and Lightning

Module with OV5647 sensor cooperating with ODROID-M1. It uses a built-in movable IR-CUT filter that is turned on and off automatically depending on the lighting conditions. Odroid M1 MIPI-CSI Camera Kit

HSTS08L 10A 2.5V Current Sensor. Enables measurement of high currents. modHSTS08L

8" TFT LCD display with a touch panel dedicated to Odroid-M1 minicomputers. Equipped with MIPI-DSI interface. It has a resolution of 1280x800 pixels. ODROID-Vu8M

8 Mpx camera module with IMX219 sensor with low distortion lens. The camera is intended for use as a replacement on the RPI Camera Board V2. ArduCAM B0184

A module enabling the conversion of input voltage in the range from 1.8 V to 5.3 V into the appropriate negative output voltage. It offers high efficiency in excess of 80%, making it ideal for applications where a lower power negative supply is required, such as biasing sensors or op-amp circuits. Pololu 2839

A set of lenses for Arducam cameras. Includes 5 lenses with different viewing angles, two lens holders and a set of screws. Lenses compatible and tested with image sensors such as OV2640 and OV5647. Arducam LK002

MicroSD card reader module, shield type for Wemos D1

8-channel voltage level converter allowing for connection of systems operating with the voltage level of 1.8 V, 2.5 V, 3.3 V and 5 V. SparkFun BOB-19626

A module with a two-channel DC motor driver based on the TB6612FNG system. Designed for Wemos D1 Mini

Spring-loaded test needle for connecting and testing modules without soldering