BMS 3S 20A Charger Li-ion Lithium Battery 18650 Protection Board

1.3-inch OLED display module with a 128×64 pixel resolution and a blue monochrome screen. It uses an I2C/IIC interface for communication, requires a 4-pin connection, and is compatible with 3.3V to 5V microcontrollers like the Arduino. Key features include high brightness, self-emission (no backlight needed), high contrast, low power consumption, and a wide viewing angle

MODULE compatible Arduino to control 4 motors DC or 2 stepper motors and have 2 connections for servomotors. This shield uses pins D3 to D12 for operation (direction, speed, etc).

The module is based on two L293D drivers and can control up to 4 DC motors with an intensity of 0.6 A per output (1.2 A at peak).

The “LJ12A3-4-Z/BX” is an inductive proximity sensor that detects metal objects within a 4mm range. It operates on a DC 6-36V power supply and has an NPN (Normally Open) digital output, meaning it completes a circuit to the signal line when it detects metal. These sensors are used in industrial automation for non-contact switching, control, and detection

The SG90 servo motor is a type of continuous rotation motor controlled by a digital signal. It is used in projects such as robotics, position control systems, and DIY projects.

A 5v relay is an automatic switch that is commonly used in an automatic control circuit and to control a high-current using a low-current signal. The input voltage of the relay signal ranges from 0 to 5V.

The ESP32-CAM is an ESP-WROOM-32 development board from AI Thinker, paired with a 2MP OV2640 color camera. The ESP32-CAM module also features an SD card reader that can be used to record images when an event is detected (e.g., presence or motion detector).