Electric Door Lock 12V DC Electromagnetic Solenoid

Characteristic: - Supports up to 280ºC
- Electrical and antistatic insulation
- Resistant to acid and alkaline products
- Resistant to solvent
- Adhesive
- Length Approx: 33m
- Polyamide adhesive tape 10mm 
- Known as Kapton polyamide tape
- Product for welding works on those that need to protect some component from the heat

This module is an active buzzer for Arduino and emits different sounds at various frequencies.
It does not accept oscillation source, it only receives square waves for drive sound. 

This module is a three-way switch (COM, NO and NC) that uses the intensity of the ambient light to directly control the output load. Its adjustment potentiometer allows you to change the sensitivity and set the threshold for starting the relay. The relay is energized when it is darker than the threshold.
The optical isolation relay effectively protects the chip and ensures better performance.
This module is used for light detection, brightness detection , control of lamps and automatic equipment. Characteristic: - Channels: 1
- Supply voltage: 12VDC
- Output load capacity: 250V 10A AC / 30V 10A DC
- Relay activation current: & gt; 100mA
- Insulation: Yes
- Indicator LED: Green and Red
- PCB size: 5x2.6 cm / 1.96x1.02 "

M18 Inductive Proximity Sensor features:
- Inductive proximity sensor detection switch LJ18A3-8-Z / BX
- NPN DC6-36V
- A Often used for 3D printer bed leveling
- Cylindrical cable type DC 3 cable type (black, brown, blue)
- Inductive sensor type
- NPN NO (Normal Open )
- Detecting distance 8mm
- DC supply voltage 6-36V
- Current output 300mA
- Response frequency 0.5KHz
- Detects iron / aluminum - Operating temperature -25 ° C to + 70 ° C (Non-freezing condition)
- Head diameter 18 mm
- Size 6.9 x 2cm
- Cable length 90cm

WROOM-32 DEVKIT V1 is an ESP32 processor development board with WiFi and Bluetooth (BLE). It is much faster than the ESP8266 processor (NodeMCU and similar), and very easy to use, with 2x15 pins.

It allows controlling up to 2 direct current motors or a bipolar stepper motor. It also allows to control a unipolar stepper motor configured as bipolar.
Ideal for projects with ARDUINO.
You can use it with PIC, AVR, STM32.
L298N Motor Drive Controller Board Module Dual H Bridge DC features:
- Minimum operating voltage: 5 V
- Maximum operating voltage: 35 V
- Maximum current: ± 2 A
- Logic voltage: 5V
- PWM signal inputs for speed control
- Outputs: for 2 DC motors or for a bipolar stepper motor
- Measures: 43x43x24 mm
Helpful Links:
Operation of the robot by Infrared / Operation of the robot by Bluetooth / Automatic operation with detection of obstacles

- It has an Atmega328P chip running at 16Mhz with a factory loaded bootloader - The Uno R3 module has all the connectors than the Arduino Uno R3 and is compatible with all Arduino shields Arduino compatible UNO R3 board features:
- Includes USB Cable - ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATmega328
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O Pins: 14
- Analog input pins: 6
- DC current per I / O Pin: 40 mA
- DC Current per Pin 3.3V: 50 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - Atmega328
- SRAM 2 KB - Atmega328

This fingerprint scanner (as608-optical reader) is ideal for Arduino or Raspberry thanks to its small size and low power consumption. It has a simple interface, high reliability, good adaptability of wet and dry fingers, fast recognition speed and also in fast fingerprint search. Storage capacity of up to 120 fingerprints in its internal FLASH memory.