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The AG11 alkaline battery (also known as L721F, LR721, or 362) with a 1.5V voltage is a small power source, ideal for use in small electronic devices such as watches, calculators, and toys. It features compact dimensions: a diameter of 7.9 mm and a thickness of 2.1 mm, making it suitable for devices that require small batteries. The blister pack contains 10 pieces, providing a practical solution for users who need reliable power.

Module with LCD display 16x2 characters with green backlight. It is supplied with the voltage from 3.3 V to 5 V and communicates via the I2C interface. DFRobot DFR0556

Real time clock (RTC) module DS1307. It is powered by 5 V and communicates via the I2C interface (Gravity connector). There is also a CR1220 battery socket on the board. DFRobot DFR0151

8x16 LED matrix equipped with colored LEDs and a driver. It is powered by 5 V and communicates via the I2C interface (Gravity connector). DFRobot DFR0522

An 8" IPS LCD display with touch panel. It is equipped with HDMI for video display and USB Type-C for touchscreen. It has a resolution of 1280x800 pixels. Waveshare 8DP-CAPLCD

Module with a temperature and humidity sensor DHT22. It allows you to measure humidity in the range from 0 to 100% and temperature from -40 to 80℃. DFRobot SEN0137

Communication module with R800C chip designed for Raspberry Pi minicomputers. It adds support for GSM/GPRS (2G) networks. Waveshare SIM800C GSM/GPRS HAT

Arduino shield designed to work with the Raspberry Pi minicomputer. It is possible to combine the capabilities of the minicomputer and the Arduino board in one device. DFRobot DFR0327

Module with Flash memory W25Q128 with a capacity of 128 Mbit (16 MB). It communicates via the SPI interface. Adafruit 5643

Set for IR communication. It consists of an IR receiver module and a remote control. DFRobot DFR0107

AO3406 MOSFET transistor module with N channel and JST PH2.0 connector designed to control motor, solenoid or LEDs. Adafruit 5648

LPS28DFW absolute pressure sensor module. The chip features a wide measurement range of 260 to 1260 hPa or 260 to 4060 hPa and a high accuracy of 0.5 hPa. It communicates via an I2C interface. SparkFun SEN-21222

LPS28DFW absolute pressure sensor module. The chip features a wide measurement range of 260 to 1260 hPa or 260 to 4060 hPa and a high accuracy of 0.5 hPa. It communicates via an I2C interface. SparkFun SEN-21221

Module with an analog MQ7 carbon monoxide sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0132

The GP CR2025 3V lithium battery is a reliable power source, ideal for devices such as watches, calculators, car remotes, and BIOS batteries in computers. It features a capacity of 170 mAh and compact dimensions: a diameter of 20 mm and a thickness of 2.5 mm. It operates within a wide temperature range from -10°C to +60°C, ensuring stable performance in various conditions.

Module with an analog TEMT6000 light intensity sensor. The voltage at the output is linearly correlated with the intensity of the incident light. The module is supplied with the voltage from 3.3 to 5V. DFRobot SEN0043

A base board dedicated to Raspberry Pi CM4 modules. It is equipped with two RJ45 connectors, USB 2.0 and a microSD slot. In addition, there is a fan connector on the board. Waveshare CM4-DUAL-ETH-MINI-BOX (EU)

Module with a button, LED diode and a green cap. DFRobot DFR0029-G