Module with 4 relays SRD-05VDC-SL-C with a load up to 10 A. The board was equipped with a Grove connector and communicates via I2C. Seeed Studio 103020133

The Waveshare 0.71-inch LCD module 29380 with a round, full-color IPS screen and SPI interface is a compact solution for displaying information in microcontroller-based projects. With its small size, high image quality, and easy integration, it is well-suited for wearable systems, robotics, interactive gadgets, and modern HMI devices.

Module with slot optical sensor TCUT1600X01. The board is equipped with a Grove connector and has two digital outputs. Seeed Studio 101020587

Purple mechanical keyboard switches. They can be used for a wide range of projects, including when building a proprietary, non-standard mechanical keyboard. They make a audible sound every time you press a key

The module with the MAX31850K amplifier is designed to work with a thermocouple. The board is equipped with a Grove connector and communicates via 1-Wire. Seeed Studio 101020555

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 5235

MCS51, 25MHz, 16KB Flash, 10-Bit ADC, USB, 32LQFP, Silicon Laboratories, RoHS

Module with BMA456 pedometer, which combines an acceleration sensor and built-in step counting algorithms. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 101020583

Waterproof strip with RGB LED diodes, 1 m long (60 LEDs per meter). The LEDs are mounted on a flexible white PCB, the tape has a Grove connector. Seeed Studio 104020109

Module with LCD display 16x2 characters with white text and blue backlight. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 104020111

An offline speech recognition module that enables recognition and interpretation of user spoken commands without access to an external pattern database. It is equipped with 121 commonly used fixed command words and the ability to learn up to 17 new customised instructions. DFRobot SEN0539-EN

Module with ACHS-7123 current sensor with a measuring range of direct and alternating current from -30 to 30 A. It communicates via an analog interface. Pololu 4032

Pololu Jrk 12v12 USB Motor Controller with Feedback

Module with LCD display 16x2 characters with black text and red backlight. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 104020112

Module with LCD display 16x2 characters with black text and yellow backlight. The board is equipped with a Grove connector and communicates via I2C. Seeed Studio 104020113

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 5251

ARM Cortex-M3 CPU, Low power, 128kB Flash, 16kB RAM, USB, 3xUART, 2xI2C, 2xSPI, ADC, DAC, STM, LQFP100, RoHS

Module with 2 relays SSR G3MC202P with a load up to 2 A. The board is equipped with a Grove connector and is controlled via digital inputs. Seeed Studio 103020134

The GR10-30 sensor module, which can recognise up to 12 user gestures from a distance of up to 30 cm. It supports communication via both UART and I2C interfaces. DFRobot SEN0561