Resistor 100R Ohm 5% 0,25W 1/4W

This photo-resistance module is very sensitive to ambient light. Activation of the microcontroller or retransmission modules,
The brightness module of the ambient light reach the set threshold, the output is high when the ambient light exceeds the set threshold.
The DO output can be connected directly to a microcontroller to detect the light environment and create a light control switch.
It has a speed range of 0% to 100%. Digital Light Intensity Sensor with Photo Resistance with LM393 Controller features:
- Operating voltage: 3.3 - 5 V
- Input current: 50 mA
- Use a very sensitive photo resistance
- Use a LM393 wide voltage comparator, high quality output signal
- Adjustable potentiometer can regulate the brightness of detected light

This module includes the BMP280 component that converts atmospheric pressure, temperature and humidity with high precision into a digital signal.
The equipment uses the two I2C and SPI interfaces. The very good measurements made by the BMP280 allows the module to be used as an altimeter.
Its 5-pin straight connector allows easy connection to other electronic boards. BMP280 Temperature Barometric Pressure Sensor Module/SPI features:
- Interfaces:
       -I2C (up to 3.4 MHz)
       -SPI (up to 10 MHz)
- Supply voltage: 1.8-5VDC
- Module operating range:
       - Temperature: -40ºC to + 85ºC
0-100%
       - Pressure: 300-1100 hPa
- Resolution of the measures:
       - Temperature: 0.01ºC

It works exactly the same and with the same libraries as an LCD1602.
It consists of a display of 20 characters and 4 rows.
Ideal for projects with Arduino.
You can use it with PIC, AVR, STM32. LCD Display Screen Blue Backlight 20x4 2004 features:
- LCD screen, 20 characters and 4 lines
- 5V power
- Backlit blue background, white letters

Potentiometer B1K Linear features:
-1k OHM kΩ - linear potentiometer 1k Arduino
-Tolerance: +/- 20%
- Power: 0.125W

Connector with 80pins in double rows 2x40, ready to break and with 90 ° angle for vertical use.

Specifications: Voltage: 6V
Capacity: 4.5Ah
Dimension
- length: 70mm
- width: 48mm
- height: 100mm
- total height (with terminals): 106mm
Weight: 0.71 kg Gel Battery 6V 4.5Ah features:

"Standby" mode (25 ºC): 6.8-6.9V
Cyclical work (25 ºC): 7.25-7.45V
Maximum starting current:

Most Sonoff products are not DIN-rail mounted, making it difficult to place Sonoff products in the switchboard or control panel. With this simple tray you can place your switches inside the home's entrance box, for easy installation. 

Pulley GT2 36 Teeth 6mm Aluminium Pulley 3D Printer Reprap features:
- Number of teeth: 36
- Pitch: 2mm
- Material: Aluminum alloy
- Outside diameter: 25mm
- Inner hole: 5mm
- Use with strap: 6mm and 6.35mm
- Ideal to fix on the axis of the motors of your 3D printer