Module with a flexible e-Paper display with a diagonal of 2.9" and a resolution of 296x128 px. Communication via the SPI interface. Waveshare Pico-ePaper-2.9-D

Finder 38.52.7.024.0050 is a relay interface module with a 24 V DC coil, equipped with two changeover contacts (DPDT) with a load capacity of 8 A. It is designed for DIN rail mounting and features screw terminals for easy installation.

Bluetooth 4.0 module based on the CSR8635 chip designed for Bluetooth audio applications. The module has a built-in antenna and pins for edge connectors.

Pololu High-Power Motor Driver 36v20 CS

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

Universal test lead with LED backlight for Uni-T multimeters. Uni-T UT-L17

This set of two quadrature encoders for 20D extended-shaft motors provides precise rotational speed monitoring with 20 pulses per motor revolution. The devices utilize magnetic disc and Hall-effect sensors operating from 2.7-18V, and the digital outputs can be connected directly to a microcontroller. The encoders mount directly to the back of the motor, and the compact design and 6-pin JST PH connectors facilitate integration into robotic projects and control systems. Pololu 5661

Module with ozone detection sensor. It performs measurements up to 10 ppm with a resolution of 0.01 ppm. It has a UART output and an analog output. ZE25-O3

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

Sound module supported by I2C interface, which allows to generate sound signals in simple projects thanks to Qwiic system and ATtiny84 microcontroller. With support of Arduino libraries, users can control volume, frequency and duration of sound, which makes it ideal for applications such as alarms or signals in robots. SparkFun BOB-24474

Programmable radio module operating at 2.4 GHz. It is based on the CC2511F32 microcontroller. The board has analog outputs, PWM, USART and SPI interfaces and a USB connector. Pololu 1336

Module with a black and white OLED display with a diagonal of 1.3". It has a resolution of 128x64 pixels and a SH1107 controller. Communication with the module is carried out via the I2C or SPI interface. WSH 1.3inch OLED Module (C)

An advanced wireless communication module based on the Bluetooth 5.2 (Bluetooth® Low Energy, BLE) stack, which is designed using the powerful Nordic nRF5340 SoC. It provides GPIO, SPI, UART, TWI, I2C, PDM, PWM, ADC, NFC and USB interfaces for connecting peripherals and sensors. SparkFun WRL-25465

Advanced wireless communication module, based on the Bluetooth 5.4 stack (Bluetooth® Low Energy, BLE), which was designed using the efficient Nordic NRF52805 SOC system. The module offers support for the UART interface, available only in peripheral mode, which allows for effective operation as a data bridge (Data Bridge). Sparkfun WRL-25467

Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface

The module with a color LCD display with a diagonal of 1.14". It has a resolution of 240x135 pixels and an ST7789 controller. Communication with the module is realized via the SPI interface. Waveshare 1.14inch LCD Module