Mini Submersible Water Pump DC 12V 240L/h 3.6W

It is compatible with almost any microcontroller, Arduino, PIC, AVR.
It can be used in Access Control projects and Alarm projects. RFID Module with Card and Pendant features:
- Supports Quick CRYPTO1 and MIFARE
- Operating current: 13-26mA at 3.3V
- Standby current: 10-13mA to 3.3V
- Sleep-mode current: <80μA
- Maximum current: 30mA
- Frequency of operation: 13.56Mhz
- Reading distance: 0 to 60mm
- Communication protocol: SPI
- Maximum SPI speed: 10Mbit / s
- Maximum data rate: 10Mbit / s
- Operating temperature: -20 to 80ºC
- Humidity of operation: 5% -95%

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.

The kit contains the Mega board, the Ramps 1.4 shield and 4 A4988 controllers with heatsinks.

This fingeprint scanner from ADH-Tech combines a highly precise fingerprint sensor module with an onboard MCU and UART interface enabling trivially very connection to any project.

The scanner independently reads and analyses the fingerprint thanks to an MCU algorithm that can send a converted digital signal to a peripheral serial interface for a data read. The onboard MCU algorithm enables operations such as for example a fingerprint enroll.

Elegant WIFI controlled touch wall light switch with 3 switches. SONOFF TX offers you perfect intelligence control solutions for your home or workplace. Compatible with Amazon Alexa, Google Assistant DIY Smart Home, Nest via iPhone or Android.

Raspberry Pi HD Pi NoIR V2 camera board Raspberry Pi HD Pi NoIR camera board connects to any Raspberry Pi or Compute Module to create HD photos and video. The Pi NoIR (without infrared) is the same as the standard camera module but without an infrared filter. Therefore, it is excellent for photography and video in the dark.
The module uses Sony's IMX219PQ image sensor that offers high-speed, high-sensitivity video images.
The Pi NoIR module offers contamination from Reduced image such as fixed pattern noise and smudges. It also has automatic control functions such as exposure control, white balance and luminance detection. Raspberry Pi NoIR Camera Board, Sony IMX219 8 Megapixel Sensor features:
and benefits: No infrared filter
High quality images

SIM800L GPRS GSM SIM Board Quadband features:
Package includes:
- SIM800L module,
- 2x pin headers,
- Spring antenna,
- 3G PCB antenna - 15cm cable.
- Supported SIM format: Micro SIM.

The Ethernet module for Arduino and compatible boards based on the Wiznet W5500 chip, faster than the previous W5100. It provides an easy way to connect your module to the local network and internet based WIZNET with a TCP/IP interface. Compatible with libraries with the same Ethernet API. A web server can be built with this UNO board shield. It can be used as a server or as a client.

XY-V17B is a smart voice module, integrated IO segment trigger, control UART series, ONE_line control of a single serial bus, MP3 standard and other functions; Supports MP3, WAV format decoding, maximum storage capacity on 32G TF card, update audio files from TF memory card via USB data cable to connect computer.
Voice Module MP3 Player features:

- Support MP3, WAV decoder format.
- Support sample rate ( KHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48.
- 24-bit DAC output, support 90dB dynamic range, support 85dB signal-to-noise ratio.
- Fully compatible with FAT16 / FAT32 file system, 32G TF card with maximum support, 32G U disk support.