A computer performance monitor that allows you to display CPU, GPU, RAM and disk usage. It has a built-in microphone and an audio spectrum display function. It is connected to the computer via a USB port. Waveshare 2.1inch USB Monitor B

e-Paper display with a diagonal of 13.3" and a resolution of 960x680 pixels. Communicates via the SPI interface. Waveshare 13.3inch e-Paper (K)

Liquid level sensor (up to 124 mm) with analog output. The output voltage varies in proportion to the liquid level. The measuring element is placed in a plastic housing. Adafruit 3828

The expansion module is designed to work with micro:bit. It allows you to control 4 DC motors or two stepper motors and 8 servos. It communicates via the I2C interface. DFRobot DFR0548

IPS LCD display with a screen diagonal of 11.9". It offers a resolution of 320 x 1480 pixels and an HDMI input, which allows you to easily connect the display to various signal sources. Waveshare 11.9inch Side Monitor

Module with a black and white OLED display with a resolution of 128x64 px, designed for FireBeetle plates. It communicates via the I2C interface. DFRobot DFR0507

Module with ACS723 current sensor with a measuring range of AC and DC ± 5 A. It communicates via an analog interface. SparkFun SEN-13679

A small evaluation board with nRF52840 (ARM Cortex-M4) and WiFi ESP32-D0WD module for projects related to Mesh networks. Adafruit 3997

Module with a stepper motor driver based on the DRV8434 system. It allows you to power a bipolar motor with a current of up to 1.2 A per phase and a voltage from 4.5 V to 48 V. Pololu 3763

Gravity: Analog Sound Sensor is a sound sensor with Gravity analogue output. The module can be supplied with 3.3 ... 5V voltage. DFRobot DFR0034

Gravity module designed based on the GP8211 system. It is a single-channel DAC (analog-to-digital) converter with I2C communication that offers an output signal with a resolution of 15-bit and an accuracy of 0.01%. It allows you to generate analog signals with a voltage range from 0 to 10 V or 0 to 5 V. DFRobot DFR1071

Alphanumeric display 16 characters in two rows, content green, black background.

TSV524IPT, High merit factor (1.15 MHz for 45 μA) CMOS op amps, TSSOP-14

DC-DC Step-Down converter module. It has an input voltage from 3.3 to 45 V, an output voltage of 3.3 V and a maximum output current of up to 3.7 A. Pololu 4891

DC-DC Step-Down converter module. It has an input voltage from 12 to 45 V, an output voltage of 12 V and a maximum output current of up to 2.8 A. Pololu 4896

Tri-color E-Ink display (ePapier) with a diagonal of 1.54 "and resolution 152x152 pixels with SPI controller, SRAM memory and a MicroSD card slot. Adafruit 3625

Single-sided universal tile with dimensions of 18x30 cm made of FR-4 laminate with a thickness of 0.4 mm. Perfect for creating electronic circuits and prototypes using THT components. DFRobot FIT0576

E-Paper ESP8266 Driver Board is a universal driver board for e-Paper displays. The board is based on the WiFi ESP8266 module. e-Paper ESP8266 Driver Board

Bi-directional ESC speed controller for brush motors. It can deliver 20 A and has cables terminated with an XT60 connector. DFRobot DRI0047

Module with the PAM8904 controller designed specifically to control piezoelectric elements. The amplifier operates over a wide frequency range, up to 300 kHz, and allows for gain up to approximately 13 Vpp. Adafruit 5791