BME280 is a sensor which can be used in a wide range of applications. For example, you can use it in simple Arduino projects. Integrated logic converter and voltage stabilizer make it work in both 3.3V and 5V logic. You can use it along with Raspberry Pi, STM32 or just simple Arduino.
Moduł GSM / GPRS SIM800L with external antenna. This module does allow for GSM and GPRS communication. You can make voice calls and send text messages with it. On this board, you'll find SIM card socket.
Nova Fitness SDS011 is a professional laser sensor measuring the value of suspended dust. It has a fan designed to suck in air. Thanks to this, high accuracy and stable and repeatable readings were obtained.
L298N - 2-channel stepper motor driver
Input voltage: 5-35V
Maximum drive current: 2A
Logic power voltage: 4.5-5.5V
Logic current consumption: 0-36mA
Signal voltage: High 4.5-5.5V, Low 0V
Maximum power: 20W