Arduino

2x CNY70 Reflective Optical Sensor with Transistor Output features:
- Reflective optical sensor with transistor output
- Reflective optical coupler used to distinguish edge or line detection
- Dimensions of the housing are 7 x 7 x 6 mm
- Supply voltage: 5V
- Maximum diode current: 50 mA
- Maximum collector-emitter voltage: 32V
- Maximum collector current of 50 mA
- Quantity: 2 units

It is very easy to make it work with an Arduino, PIC or any other microcontroller.
In its output pin we will be able to measure the PWM pulse width depending on the distance of the obstacle.
HC-SR04 Ultrasonic Sensor Distance Measuring Module features:
- Supply voltage: 5V (4.5V- 6V)
- Consumption: 30 mA typical, (35 mA max)
- Interface: VCC , GND, Signal
- Range: 2 cm to 3 meters
- Angle 15º
- LED indicator of measurement in progress
- Frequency: 40 kHz for 200 µs - Size: 30mm x 20mm
- Quantity: 1 unit
Useful links for Arduino / Raspberry programming and projects with boards Arduino / Raspberry:
Automatic robot operation with obstacle detection />

Version compatible with Arduino Nano V3.0
It has an ATMega328P chip running at 16Mhz with bootloader loaded factory.
Characteristic:
- Microcontroller: ATmega328
- Operating Voltage (logic level): 5V
- Input Voltage (recommended): 7-12V
- Digital I / O Pins: 14 (6 PWM outputs)
- Analog Inputs: 8 (A0-A7)
- DC Current per I / O pin 40 mA
- Flash memory: 32 KB (2 KB used by the bootloader)
- SRAM: 2 KB
- EEPROM: 1 KB
- Frequency Clock: 16 MHz
- USB Communication - CH340
- Dimensions: 18 mm x 44 mm

8x8 LED Matrix Kit MAX7219 Arduino PIC Dot Matrix Display Cascade DIY features:
- 8X8 LED matrix controlled by MAX7219 chip
- 3mm red LED
- SPI communication
- Voltage: 4.7 - 5.3V DC
- Interfaces to manage multiple modules in cascade
- Matrix dimensions: 32mm x 32mm x 8mm
- PCB dimensions: 32mm x 50mm

The L293D motor controller allows you to control two DC motors or one stepper motor using Arduino kits. The system allows you to adjust the direction and rotational speed of motors with a current consumption of up to 600 mA and a supply voltage from 4.5 V to 25 V.

Arduino Shield Sensor Expansion Board V2.0 features:
The Mega Sensor Shield V2.0 allows: - To be directly punched to an Arduino Uno, Mega, Leonardo board
- Facilitate the connection of different modules, such as sensors, relays, servos, buttons, potentiometers and more
- Size: 100x54x12 mm

Kit electronic components for Arduino UNO Mega.
It allows to build various projects of various complexity, from the easiest ... to the most complicated
The elements are placed in the box to keep everything in order.
Characteristic:
It includes the following module references:
- 1x Protoboard Breadbord 400 points Arduino
- 20x Male-Male Cables 20cm Jumpers Dupont 2,54
- 1x LED Diode Assortment Kit 30 pcs 5mm red, green, yellow
- Resistors:
 - 10x Resistors 200R Ohm 5% 0,25W 1/4W
 - 10x Resistors 1K Ohm 5% 0,25W 1/4W
 - 10x Resistors 10K Ohm 5% 0,25W 1/4W
 - 10x Resistors 100K Ohm 5% 0,25W 1/4W
- 2x Photoresistor GL5516 LDR
- Push switch buttons:
 - 1x Push Switch Button B3F Omron Blue Key 12mm

Arduino compatible IR motion detector with a detection range of 7 meters and an operating angle of 120º.
An electric pyro sensor , which can detect infrared radiation levels - detect a change in the average IR levels of your detection zone.
Ideal for projects with ARDUINO, PIC, AVR, STM32. HC-SR501 Motion Detector Module Passive Infrared PIR Sensor features:
- Infrared sensor with control circuit
- Adjustable sensitivity and time
- Operating voltage: 4.5V- 20V
- Consumption in Idle state:

NFC Card Type 2 NTAG215 RFID Dual Label 13.56 MHz features:
- Standard: NFC Forum Type2 Tag Ntag215
- Protocol: ISO14443A
- Memory: 540B (504B) EEPROM - Operating frequency: 13.56MHZ
- Reading distance: 0-10CM
- Communication speed: 106Kboud
- Working temperature: -20ºC to 70ºC
- Number of uses 100,000 times
- Data retention: 10 years
- Material: PVC
- Dimensions 86 x 54 x 0.84 mm

check it Contenido:
- 20x Cable macho-macho 20cm - 10x Cable hembra-macho 20cm - Kit de diodos LED - 20 unidades ( 5x rojo, 5x verde, 5x amarillo, 5x blanco) Resistencias:
- 220R- 10 unidades
- 10k- 5 unidades
- 1k-   5 unidades
- Transistor TIP120 TO-220 - 1 unidad
- Diodo LED RGB - 1 unidad
- Condensador electrolítico 470uF/50V - 2 unidades check it Content:
- Prototype plate 400 points
- 20x Cable Jumper mach-macho
- LED diode kit - 30 units (10x red, 10x green, 10x yellow) Resistances:
- 100k- 10 units
- 10k- 10 units
- 1k- 10 units
- 220R- 10 units
- Photoresistor GL5516 Type LDR 10k - 2 units
- Push buttons Omron B3F Blue, Red, White - 3 units
- 100uF / 50V electrolytic capacitor - 5 units

- Bootloader Pin Header Compatible 100% ARDUINO
- Pro Mini Atmega328P 5v 16Mhz
- Miniaturized compatible version of Arduino Pro Mini
- It has an Atmega328P chip running at 16Mhz with a factory-loaded bootloader. It does not include pins so we can only solder the pins that we need
Characteristic:
- ATmega328P 16MHz chip with external quartz crystal
- Auto-reset - micro switch
- Integrated 5V regulator
- FLASH 32kB memory
- SRAM 1kB memory
- EEPROM 1Kb memory
- Analog input A0-A7
- 8 PWM channels
- External interruption
- TWI / I2C, UART, SPI interfaces
- Power and status LEDs
- Dimensions: 18x33mm
- Weight: 30 grams
Useful links for Arduino />

This module, which uses the exclusive L298P chip for driving high-power motors, can directly control two DC motors, with a drive current up to 2A. The motor output uses eight-speed Schottky diodes as protection.
The design of the letter allows you to connect directly to the Arduino UNO R3 for easier use. Module L298P DC 2A Motor Management Shield Bluetooth Interface PWM features:
- 1 logical step of the input voltage VD: 5 VDC
- Control of the input voltage VS and control by pulse width modulation:
      - VIN input: 6 - 12 VDC
      - PWRIN input: 4.8 - 35 VDC
- Logic current flow: Iss <36m A
- Operation current management: Io <2 A
- Maximum power dissipation 25W (T = 75 ° C)
- Input of the control signal:

Level sensor for liquids with float.
The liquid level sensor acts as a switch. The state is changed by means of a magnet located on the float. It can be used to detect liquid levels that are too high or too low.
Ideal for all those applications where it is necessary to control the level of non-corrosive liquids such as water tanks, aquariums.
Characteristic:
- Maximum Load: 50W
- Maximum Switching Voltage: 250V
- Maximum Switching Current: 0.5A
- Maximum charging current: 1A
- Operating temperature: -10ºC to + 60ºC
- Size: 58mm x 18mm

Encapsulated with water resistant stainless steel with sensor dimensions 6 * 50mm, cable length 300 cm. DS18B20 Waterproof Digital Temperature Sensor Probe 3m features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 ° C to 125 ° C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
             - Vcc red
             - Yellow digital output
- Inocidable steel
- Cable length: 3m

Screw Shield V2- Arduino ScrewShield UNO features:
Screw Shield V2 allows: - Being punctured directly to an Arduino Uno
- Facilitate the connection of different modules, such as sensors, relays, servos, buttons, potentiometers and more.

The network module communicates with the Arduino type board through the SPI protocol ideal for projects with ARDUINO, PIC, AVR, STM32. ENC28J60 Ethernet LAN Network Module Mini AVR LPC STM3 features:
- Chip ENC28J60 Microchip
- Module: 10Base-T
- 3.3V power
- SPI interface
- 25Mhz speed
- LED status LED
- Hanrun network transformer
- Network Interface board HR911105A
- Operating temperature: -40ºC to + 85ºC
- Dimensions: 51 x 19 x 16 mm

Version compatible with Arduino Mega2560 R3
It has an Atmega2560 chip running at 16Mhz with a factory-loaded bootloader
With 54 digital input / output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UART (hardware serial ports)
The board includes a USB connector, an ICSP port , a reset button and some status LEDs
Arduino compatible Mega2560 R3 CH340 board features:

- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Digital I / O Pins: 54 (14 PWM outputs)
- Analog input pins 16
- DC current per I / O Pin 40 mA
- DC Current per Pin 3.3V 50 mA
- Flash: 256 KB of which 8 KB are used by the bootloader
- SRAM: 8 KB
- EEPROM: 4 KB - Clock speed 16 MHz

The perfect Arduino sensor kit to start learning about the world of electronics with Arduino. It comes with our step-by-step guide to each sensor, as well as its libraries. 

Screw Shield V1- Arduino ScrewShield UNO y MEGA features:
Screw Shield V1 allows: - Being punctured directly to an Arduino Uno, Mega, Leonardo plate
- Facilitate the connection of different modules, such as sensors, relays, servos, buttons, potentiometers and more.

2 Channel Relay Module DC 12V 10A Low/High Trigger for Arduino features:
- Channels: 2 (independent protected with Optocouplers)
- Supply voltage: 12V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- Trigger signal type jumper (low / high)
- LED indicator: For each channel
- Dimensions: 40x 50mm
- Has a jumper that allows to choose type of trigger signal (low / high)
- This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)

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

ProtoShield Prototype Expansion Board with Mini Breadboard 170 points for Arduino Mega2560 V3.0 features:
- To mount your projects in a comfortable and orderly way, access to all the pins of Arduino Mega2560, it has a universal plate and protoboard zone, 5V and Gnd buses, reset pushbutton, pushbutton and 2 general purpose leds, zones for integrated Soic and Dip
- The seamless mini breadboard has 170 connection points.
- You can stick on the shield with its self-adhesive back.

The STM32F103C8T6 has characteristics that surpass the traditional Arduinos type Atmel
We go from a speed of execution 16 MHz to 72 MHz and 8-bit to 32-bit. The module is supplied in a soldered version.

Ethanol alcohol sensor module.
MQ gas sensor uses a small indoor heater with an electrochemical sensor.
When the alcohol molecules in the air comply with the electrode the ethanol "changes" into acetic acid and then more current is produced.
MQ-3 Alcohol Sensor Module Ethanol Breathalyzer features:
- Main chip: alcohol sensor MQ-3 and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Detection concentration:
- 0.05mg/L - 10mg/L
- Quick response features:
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, from the TTL 8 Channel High Trip 5V 10A Relay Module features:
- Channels: 8 (independent protected with Optocouplers)
- Supply Voltage Vcc: 5Vdc
- Output Current: 10A
- High trip min 3.3V input IN1. ..IN8
- Relay activation current: 5 ~ 10mA
- Isolation: Yes
- Indicator LED: For each channel
- Dimensions: 55x 139mm
- Weight: 120g
COM GND jumper input: connects GND optocouplers and GND of the circuit

The DHT22 humidity sensor is presented in a plastic body ideal for mounting on a panel or similar. It uses a capacitive sensor that returns a digital signal with the measurement.
This sensor, unlike DHT11, is capable of measuring negative temperature values ​​and measures tenths of a degree. DHT22/AM2302 Temperature Humidity Sensor features:
- Voltage Operating: 3 to 5.5 VDC
- Humidity measurement range: 0-100% ± 2% accuracy
- Temperature measurement range: -40ºC to 80ºC ± 0.5º accuracy - Maximum sampling rate: 2 seconds

Also available with waterproof casing and 100cm cable and 200cm. DS18B20 Temperature Sensor TO-92 0.5ºC Precision 5V Integrated features:
- Device function: Temperature sensor
- Type of output: Digital
- Supply voltage: 3V to 5.5V
- Accuracy: ± 0.5ºC
- Temperature threshold: Programmable
- Operating temperature: -55ºC to + 125ºC
- Encapsulated: TO-92
- Supply current: 1.5mA

It is ultra compact and very low consumption. It works at 2.4GHz frequencies (free frequency) and is ideal for telemetry projects, robots, peripheral control, video game control applications, remote temperature sensors, pressure, alarms, etc ... NRF24L01 + Wireless Transceiver Module 2.4GHz features:
- Based on chip NRF24L01 + Ultra Low Power
- Free band: 2.4GHz ISM
- Speed: 250kbps, 1Mbps, 2Mbps
- Working current - reception: 13 mA
- Transmission: 11 mA (900nA -deep sleep mode)
- Receiving sensitivity: -94dB 250kbps
- Coverage in closed spaces: 15m / 30m
- SPI interface
- Input voltage: 1.9V- 3.6V
- Input / output port voltage: 0V-3.3V / 5V
- Coverage in open areas: 100m approx.
- Clock frequency: 16MHz

WS2812 RGB 5050 Smart Addressable 5V Arduino LED WS2811 features:
- WS2812 are LEDs that have built-in logic, making it possible to vary the color of each LED individually
- WS2812 includes an integrated inside each LED, which allows access to each pixel individually. For this reason, these types of LEDs are individually indexable.
- They are based on the 5050 LED
- 24-bit color control (8-bit PWM per channel)
- 16.8 millions of colors per LED
- One-wire communication
- Power: max. 5 Vdc
- Current: 18.5mA
- Input and output terminals (data and power)

Encapsulated with water resistant stainless steel with sensor dimensions 5.5*50mm, cable length 200 cm. DS18B20 Probe 2m Submersible Temperature Sensor features:
- Based on the DS18B20 chip
- Supply voltage: 3 ~ 5.5V
- Consumption <5mA
- Measuring Range: -55 °C to 125 °C
- Accuracy: +/- 0,5ºC
- Outputs: - GND black
      - Vcc red
      - Yellow digital output
- Inocidable steel
- Cable length: 2m  

NRF24L01 Shield Atmega48 Wireless Module SPI To IIC I2C TWI Interface features:
- Operating voltage: 5V
- Wait time of the module receives the data: more than 2S
- The waiting time of the module sends data: more than 300
- Transfer speed: 50 Byte / S (theoretical value)
- I2C / TWI address: 0 x 47 (decimal 35)
- Address NRF24L01: 0 x 34, 0 x 43, 0 x 10, 0 x 10, 0 x 01 (from lowest to highest)
- Size: 44 x 23 mm

- It has an Atmega328P chip running at 16Mhz with factory-loaded bootloader
- The Uno R3 module has all the Arduino Uno R3 connectors and is compatible with all Arduino shields
Characteristic:
- ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATMega328P
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O pins: 14 (6 with PWM)
- Analog input pins: 6
- DC current for Pin I / O: 20 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - AtMega328P
- SRAM 2 KB - AtMega328P
- EEPROM 1 KB - AtMega328P
- Communication: USB female Type B

It has an Atmel SAM3X8E ARM Cortex-M3 chip running at 84Mhz with a factory-loaded bootloader with 54 digital input / output (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UART (hardware serial ports).
The board includes a USB connector, a SPI port, a reset button, a button erase and some status LEDs.
Atmega16U2 programmed as a USB / Serial converter for power, simply connect it to a computer with a USB cable or power with a power adapter and DC connector.
Characteristic:
Operating voltage: 3.3V
Input voltage (recommended): 7-12V
Digital I / O Pins: 54 (12 PWM outputs)
Analog input 12 pins
2 x DAC
2 x TWI
4x UART
DC current per DIGITAL I / O pin 130 mA
Flash: 512 KB

Perfect "Mega XXL Darwin Kit" to learn programming and electronics with Arduino. It allows you to build various projects of varying complexity, from the easiest... to the most complicated. The elements are placed in the box to keep everything in order.

TFT LCD 40pins Expansion Board Adapter 3.2" 4.3" 5.0 Shield Mega 2560 features:
- Facilitates connections between the LCD TFT Touch 3V 2.4 ", 2.8", 3.2 "etc. with SD card reader and the Arduino Mega 2560 board
- Put the screen on the Shield and you can connect it directly to the Arduino Mega2560.
- TFT LCD MFT TFT LCD PCB adapter for Arduino Mega2560 STM32
- The TFT01 LCD operates at 3.3V and can not be used directly on the standard Arduino motherboard at the top.
- The TFT LCD PCB adapter for Mega is compatible with the Arduino pins, the user can directly connect the TFT LCD PCB - Adapter on the shield and stand on the Arduino board. It can be used with a Mega2560 and LCD screen.

Sound detection module for Arduino projects, smart cars. Analogical Acoustic Sensor 4-Pin Microphone Sound Detector Module features:
- Adjustable High Sensitivity Acoustic Sensor
- LM393 comparator chip
- Integrated indicator LED
- AO analog output, output voltage signal in time real microphone
- DO digital output, sensitivity adjustable through potentiometer
- Frequency Range between 30 and 15000 Hz
- Power 4 ~ 6V
- Measurements 36x16x15mm

Relay SRD-05 DC-2P 5V 10A SPDT features:
- Supply voltage: 5V
- Output Current: 10A
- For power switching with 5V DC signals - Microcontroller, Arduino, Electronica

- It has an Atmega328P chip running at 16Mhz with factory-loaded bootloader
- The Uno R3 module has all the Arduino Uno R3 connectors and is compatible with all Arduino shields
Characteristic:
- Includes USB Cable
- ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATMega328P
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O pins: 14 (6 with PWM)
- Analog input pins: 6
- DC current for Pin I / O: 20 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - AtMega328P
- SRAM 2 KB - AtMega328P
- EEPROM 1 KB - AtMega328P
- Communication: micro USB female Type B

5.8GHz Doppler Radar Motion Sensor features:
- Microwave motion detector module
- The main applications can be security alarms and sensors, Automatic door systems, ATM machines, car reverse systems, light sensors, can also be used for traffic monitoring and monitoring applications.
- High resistance to radio-frequency interference
- Frequency: 5.8GHz
- Operating Voltage: 3.3V - 20V TTL 3.3V
- Standby Current: 3mA
- Detection Range: 3-8 meters, 360 degrees
- Power of Output: 2mW
- Dimensions: 32x23 mm
- R6 - time-delay; initial value 2.2k - 1s, without delay resistance 30s, can be adjusted up to 250k
- R9 - for sensitivity adjustment

High-quality membrane keyboard, with 16-key matrix, ultra-thin, less than 1mm thick, with adhesive system on the reverse side.
Ideal for your Arduino projects, but can also be used with other microcontrollers.
Matrix Membrane Keyboard 4x4 Modulo features:

- Rating circuit, Max: DC 35V 100 mA
- Cable length: 85 mm
- Dupont 8 pin connector
- Specific insulation: 100 M Ohm, 100V
- Useful life: + 1 million uses
- Contact parting:

Sensor used to measure the current in the circuit to which it is connected. Characteristic: - Output: Analog
- Power: 5V
- Accuracy: 1.5%
- Measuring capacity: +/- 30A
- Dimensions: 31 x 13 mm

Characteristic:
- Channels: 4 (independent protected by Optocouplers)
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Isolation: Yes
- Indicator LED: For each channel
- Dimensions: 54x 72mm
- 5V Optocoupled 4-Channel Relay Module
- This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
User manual for the remote control + 4-channel 315 MHz IC2262 receiver:
- Relay Module Programming 5V 10A 4 Channel with remote control + 4 channel receiver

The humidity sensor DHT11 comes in a plastic body ideal for mounting on a panel or similar. It uses a capacitive sensor that returns a digital signal with the measurement. DHT11 Temperature and Humidity Sensor features:
- Operating voltage: 3 to 5 VDC
- Humidity measurement range: 20-95% ± 5% accuracy
- Temperature measurement range: 0ºC to 50ºC ± 2º accuracy
- Maximum sampling rate: 2 seconds
- Working current 2.5mA
- Iterfaz 1-wire
- Dimensions: 2.3 x1.2x 0.5cm
- Quantity: 1 unit

  - It has an Atmega328P chip running at 16Mhz with factory-loaded bootloader
- The Uno R3 module has all the Arduino Uno R3 connectors and is compatible with all Arduino shields   Characteristic:   - ATmega328P 16MHz chip with external quartz crystal
- Microprocessor: ATMega328P
- Operating voltage: 5V
- Input voltage (recommended): 7-12V
- Input voltage (limits): 6-20V
- Clock speed: 16 MHz
- Digital I / O pins: 14 (6 with PWM)
- Analog input pins: 6
- DC current for Pin I / O: 20 mA
- Flash32 KB of which 0.5 KB are used by the bootloader - AtMega328P
- SRAM 2 KB - AtMega328P
- EEPROM 1 KB - AtMega328P
- Communication: micro USB female 

NRF24L01 Adapter + Wireless Transceiver 2.4GHz Socket Arduino features:
- The NRF24L01 + module is powered with 3.3V
- This adapter module includes a 3.3V voltage regulator
- You can connect the NRF24L01 module on it at 5V voltage
- Dimensions of PCB: 25x 18mm
- Quantity: Adapter 1 unit

- The DHT22 humidity sensor is presented in a plastic body ideal for mounting on a panel or similar. It uses a capacitive sensor that returns a digital signal with the measurement - This sensor, unlike DHT11, is capable of measuring negative temperature values ​​and measures tenths of a degree
Characteristic:
- Operating voltage: 3 to 5.5 VDC - Humidity measurement range: 0-100% ± 2% accuracy
- Temperature measurement range: -40ºC to 80ºC ± 0.5º accuracy
- Maximum sampling rate: 2 seconds
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
Write texts on the OLED 0.96 '' screen
- Read the measurements of the temperature / humidity sensor DHT22 / AM2302 on a 0.96 '' OLED screen
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Getting started with Arduino? This multi-function shield for Arduino UNO is ideal for your first Arduino DIY projects. It includes 4 7-segment displays, buzzer, 3 push buttons, 4 LEDs, potentiometer and sockets.

Perfect "Kit XXL Sensors" to learn programming with Arduino, the basis of electronics. It allows to build various projects of various complexity, from the easiest ... to the most complicated. The elements are placed in the box to keep everything in order. The kit does not include an Arduino board. An original Arduino board or a Chinese equivalent can be purchased separately.  

M12 Inductive Proximity Sensor PNP DC 6-36V LJ12A3-4-Z/BY 3D Printer features:
- This sensor can be configured as auto Z axis level
- Sensor detection switch inductive proximity LJ12A3-4-Z / BY
- PNP DC6-36V
- Often used for 3D printer bed leveling
- Typical application: printer bed level sensor 3D
- Cylindrical cable type DC 3 cable type (black, brown, blue)
- Inductive sensor type
- PNP NO (Normal Open)
- Detecting Distance 4mm - DC supply voltage 6-36V
- Current output 300mA
- Response frequency 0.5KHz
- Detects iron / aluminum
- Operating temperature -25 ° C at + 55 ° C (Non-freezing condition)
- Head diameter 12 mm
- Size 6.2 x 2cm
- Cable length 100cm

Ideal for projects with ARDUINO, Smart Car. Sensor Module Infrared Obstacle Detector Car Robot features:
- Power supply: 3.3 - 5V DC
- OUT level 0/1 output
- Sensitivity adjustment
- Power LED
- Distance from detection: 2 - 30cm (max60cm)
- detection angle: 35º
- LED output status indicator
- Dimensions: 40x13x8mm

Relay Module DC 12V 10A 1 Channel Low/High Trigger features:
- Channel: 1 (protected with Optocoupler)
- Supply voltage: 12V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- Trigger signal type jumper (low / high)
- LED indicator
- Dimensions: 30x 54mm
- Has a jumper that allows to choose type of trigger signal (low / high)

MQ-2 Gas and Smoke Module Sensor Detector Methane Propane Butane LPG features:
- Main chip: MQ-2 flammable gas and smoke sensor and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Quick response features:
- Concentration detection:
  200ppm - 5000ppm LPG, propane
  300ppm - 5000ppm butane
  5000ppm - 20000ppm methane
  300ppm - 5000ppm H2
  100ppm -2000ppm alcohol
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

MQ-4 Gas Methane Sensor Module for Arduino features:
- Main chip: MQ-4 methane sensor and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Quick response features:
- Detection concentration:
200ppm- 10000ppm CH4, natural gas
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm

W1209 12V DC Thermostat Digital Temperature Controller Switch features:
- Model: W1209
- Supply voltage: DC 12V
- Temperature control mode: ON / OFF
- Temperature range: -50 -110 ° C
- Resolution: 0.1 ° C range -9.9 ~ 99.9 ° C, above is 1 ° C
- Measurement accuracy: 0.1 ° C
- Refresh rate: 0.5 s
- Temperature protection 0-110 ° C
- Static current: ‰ ¤ 35mA, working current ‰ ¤ 65mA
- Power of output: 10A relay
- Sensor probe: NTC waterproof sensor (10K 0.5%)
- Environmental requirements: -10 ~ 60 ° C Humidity 20% -85%
- Dimensions: 48 x 40 mm

MG-5 Gas Methane Sensor Module for Arduino features:
- Main chip: MQ-5 natural gas sensor and comparator LM393
- Working voltage: 5V
- Current: 150mA
- Digital output: TTL 0/1
- Analog output: analog voltage sensing value
- Quick response features:
- Detection concentration:
- 200ppm - 10000ppm LPG, LNG, natural gas, propane,
- Adjustable sensitivity with the potentiometer
- Size: 32mm x 20mmx 18mm