Industrial Abrasive Scourer Pad 150x50mm Laminated Copper Plate PCB

Led infrared sensor.
Detector of the source of fire or flame, can detect a flame or wavelength 760 nm-1100 nm
Particularly sensitive to the flame spectrum.
This optical flame sensor is a device that detects the existence of combustion by the light emitted by it.
Infrared LED Flame Sensor 5mm features:
- Range of light, Distance of 80 cm.
- Angle detection of about 60 degrees,
- This light can be detected by an optical sensor,
- Can be captured by digital inputs and analog inputs of Arduino.

The product provides a good development quality, protecting the sharpness of the color. The formulation is free of NaOH, which significantly increases safety at work.
Universal developer for photo varnish and positive printed circuit boards PCB.

XM-15B Bluetooth Serial Port Module Master Slave Compatible Arduino HC-05/06 features:
* Power 3.0V -6V
* 3.3V / 5V logic levels
* Bluetooth version V2.1 + EDR
* Frequency: 2.4GHz ISM band
* Reach approx. 30m
* Security: Authentication and encryption
* Supports AT commands for configuration through a serial port
* Working temperature: -20 ºC to +75 ºC
* Working current - 50 mA
* PCB dimension: 35 x 19m -Using the conventional Bluetooth CSR chip, the protocol standard Bluetooth V2.1 + EDR, passes the Bluetooth BQB certification
-Fast start, only 0.3 seconds to complete the initialization of the complete module (including the Bluetooth protocol stack)
- Built-in hardware protector, never hangs

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)

The 2.5mm female jack connector is a connector to provide power to computers, LED TVs, routers, etc ...
This 2.5mm female jack connector adapter soldered on a PCB board, is ideal for use in our projects.
It has connection points where we can easily solder some pins to connect it directly to a breadboard, or solder a cable over those same connection points.
Adapter 2.5mm female power jack with PCB features:
- Connector type: 2.5mm female jack ,
- Color: black,
- Nominal voltage: 12v DC,
- Maximum current: 0.5A DC,
- Insulation resistance: ‰ ¥ 100MΩ,
- Operating temperature: -25ºC to + 85ºC,
- Number of output pins: 3
- Pitch between output pins: 2.54mm.

LED Display 1-Digit 7-Segment Red Common Cathode features:
- Supply voltage of the segments: 3 VDC
- LED color of the segments: red
- Digit length: 14.2mm
- Digit width: 8.1mm
- Pin numbers: 10
- Diameter of pins: 0.51mm
- Step between pins: 2.54mm
- Consumption current per segment: 30mA
- Maximum admissible current per segment: 70mA
- Direct current by segment (pulse operation): 30mA
- Number of digits: 1
- Segment numbers by digit: 7
- Operating temperature: -25 ° C - + 85 ° C
- Storage temperature: -30 ° C - + 85 ° C
- Screen with common cathode connection
- Screen size: 12.6x19x8 mm
- This product is a 1 digit screen composed of 7 red LED segments with excellent brightness and features:.

NTC thermistor - with a negative temperature coefficient, i.e. an increase in temperature causes a decrease in resistance.   Thermistor NTC 1.0K 5% MF52A epoxy resin coating resistor features:

Size: 3mm
Rated resistance: R25 = 1.0k
B value 25/85 = 3950°K
Rated power: ‰¤ 50mW
Tolerance:± 5%
Operating temperature: from -40°C to +125°C  Tinned steel wire 25mm

With this multiplexer circuit we will be able to get 8 more digital outputs for arduino losing only 3 of them.