Solar Power Management Module, for 6V~24V Solar Panel

Waveshare solar plate with the working voltage of 6V and output power of 5W and the maximum working current of 830 mA. The cell was placed in a rigid frame.

Waveshare solar panel with working voltage of 18V and output power of 10W and maximum working current of 570 mA. Includes polysilicon cells. The panel is placed in a rigid, high-strength frame.

Foldable Plastic Stand for Mobile Tablets eBooks Smartphone Green features:
- The colors of the articles may vary a little from the photographs
- It should be used on a flat, level and stable surface
- Dimensions: 7.5 × 3.5 cm, height 6cm
- Color: Green
- Quantity: 1 unit

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

Sound detection module for Arduino projects, smart cars.
Sound Detection Sensor Module features:
- Adjustable High Sensitivity Acoustic Sensor
- Chip LM393
- Red LED indicator integrated
- Frequency range between 30 and 15000 Hz
- Power 4 ~ 6V
- Measures 32x16x10mm

Mount LED Diode on a good heatsink, a metal plate, add a fan, this is necessary because you have to "remove" the heat from the surface of the board so that the LEDs last longer to place a little bit of thermal silicone in each of the diode's placement centers.
The thermal paste increases the thermal transfer between the diode and the metal plate used as a circuit.
Important to keep in mind the diodes generate a lot of light intensity and very concentrated.
Avoid looking directly at them once they are turned on and wear protective glasses when working with them. Characteristic: - 30mil chip
- Voltage: 3.0-3.2V
- Current: 300mA
- Luminous flux: 70-80LM
- Ã beam angle: 120 degrees
- Color emission: green

10x Strip 10 Short Female Pins features:
- Pin spacing: 2.54mm
- Insert position: Vertical
- Insert: Through
- Quantity: 10 units of strips of 10 female pins each

Resistor 10K Ohm 5% 0,25W 1/4W features:
-10K Ohm
-Type: Carbon film
-Tolerance: ±5%
-Power: 0.25W
-Dimensions: 2x7mm

The Grove Base Kit for Raspberry is all you need to start playing and making with your Raspberry Pi board. It is compatible with boards Pi 3 and Pi 4 and includes 8 basic sensors, a display and a motor. All of that on the grove connectors making it a seamless experience.

- The PCF8574P is an 8-bit remote I / O expander for the I2C bus with 16-pin DIP packet interrupt. - Provides general-purpose remote I / O expansion via a two-wire, two-way I2C bus (Serial Clock (SCL), Serial Data (SDA)).
- Devices consist of eight quasi-directional ports , 100KHz I2C bus interface, three hardware address inputs and interrupt output operating between 2.5V and 6V.
- Quasi-bidirectional port can be independently assigned as one input to monitor interrupt status or keyboards or as an output to activate indicating devices like LEDs. - System Master can read from the input port or write to the output port through a single register.

With this Mini TV BOX you will have a complete multimedia centre on your TV thanks to its Android 9.0 and its powerful CPU. It supports H.265 hardware video decoding, external SD card and USB hard drive drivers.