Mobile Charger 5V 3A 3100mA Micro USB 15W

- 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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Ideal for your electronic projects, arduino, but can also be used with other microcontrollers. Breadboard Power Supply Protoboard 830/400 Points MB102 features:
- Input voltage supports up to 12V
- Selectable 3.3V or 5V
- USB input or standard DC 2.1 x5.5mm connector
- Maximum current 700mA
- It fits perfectly on the MB-102 breadboard feeding the two lateral buses
- Weight: 15 gr. (approx.) Compatible only with MB-102 type plates

Rock Pi 4 model SE 4GB - single board computer with a high-performance hex-core Rockchip RK3399-T processor. It is equipped with 4GB of LPDDR4 RAM, WiFi and Bluetooth 5.0, a Gigabit Ethernet port with PoE, an HDMI port and 2 USB 3.0 and 2 USB 2.0 ports, as well as a 3.5 mm jack plug. The board has 2 x 20-pin GPIO cables and DSI and CSI connectors for display and camera connections. Rock pi 4 SE is the perfect alternative to the Raspberry Pi

MQ-7 Carbon Monoxide Sensor Module. The sensor detects the concentration of CO (carbon monoxide) and flammable gases. It has a goldpin connector raster 2.54 mm. It is powered by 5 V. It has digital and analogue outputs, which makes it compatible with most runtime modules including Arduino.

USB Cable A to Micro USB B 30cm for Arduino Leonardo, Due.

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

Power Supply Transformer 220V AC/DC 2A 5V features:
- Input voltage: 100~240V 50Hz
- Output voltage: DC 5V
- Output current: 2A
- DC connector: 5.5 mm x 2.1 mm
- Cable length: Approx. 90 cm
- Indicator of operation: LED diode

Raspberry Pi 400 is the ideal tool, both educational, perfect for students of all ages, and for personal use. This RPi based on model 4, offers a low cost and portable solution, being ideal for home study and for teaching computer concepts such as programming, physical computing and networking. 

The Raspberry Pi 400 has a quad-core ARM Cortex A72 processor with 4GB of RAM, an Ethernet socket, 3 USB ports, two microHDMI ports and a 40-pin GPIO. Keyboard Spanish version