Mini Submersible Water Pump DC 12V 200L/h 3W for ARDUINO

This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL, PLC output).
16 Channel Relay Module 12V 10A AVR features:
- Channels: 16 (independent protected with Optocouplers)
- Supply voltage: 12V
- Output Current: 10A
- Relay activation current: 3mA
- Insulation: Yes
- Low shot: 0-2V
- LED indicator: For each channel
- Dimensions: 18x 9x 2cm

The DC-DC 25A solid state relay has a 3-32VDC input and a 6-60VDC output. It has a maximum load capacity of 25A.
It has a long operating life and high reliability, a compact size. This relay switches very quickly. Fotek SSR-25 DD 25A DC-DC Solid State Relay 5V-60VDC output 

The Sonoff IFan03 is an intelligent controller for ceiling fans with light that allows us to control it intelligently, either by the eWeLink application, by means of 433MHz RF control or by voice assistants such as Alexa or Google Home.

Create your own scenes, turn on the light and/or the fan and adjust its speed, programming it to the hours you want.

This module is a three-way switch (COM, NO and NC) that uses the intensity of the ambient light to directly control the output load. Its adjustment potentiometer allows you to change the sensitivity and set the threshold for starting the relay. The relay is energized when it is darker than the threshold.
The optical isolation relay effectively protects the chip and ensures better performance.
This module is used for light detection, brightness detection , control of lamps and automatic equipment. Characteristic: - Channels: 1
- Supply voltage: 12VDC
- Output load capacity: 250V 10A AC / 30V 10A DC
- Relay activation current: & gt; 100mA
- Insulation: Yes
- Indicator LED: Green and Red
- PCB size: 5x2.6 cm / 1.96x1.02 "

This product is a Bluetooth module BLE 4.0 UART without adapter, low energy with serial transceiver.
Logic level conversion circuit. No external level of 5V is needed to become a 3.3V level.
The power input port is protected against the anti-circuit, to avoid the inverted accidental power plug, which leads to the module burn
HM-10, Bluetooth module HM-11 series using IT chip CC2540 / 2541, configuration 256Kb space, support
In commands.
You can change the paper (master and slave mode) and the baud rate, the device name, the pairing of the password and other parameters, convenient and flexible. BLE 4.0 UART Bluetooth Low Energy Module without Adapter features:
- Version AT-09 CC2541 Arduino Android IOS BLE
- Serial transceiver

CNC Shield + UNO R3 CH340 +4x A4988 Stepstick 3D Printer Arduino kit features:
- Content:
* 1x UNO R3 CH340 Compatible with Arduino
* 1x CNC Shield V3
* 4x A4988 Drivers
* 4x Heatsinks for A4988
* Jumpers

 M12 High Resolution Lens, 12MP, 69.5° FOV, 8mm Focal length, Compatible with Raspberry Pi High Quality Camera M12. Long Focal Length.

Work with Bluetooth compliant devices including notebook, PDA, digital camera,printer and mobile phone.
Mini Dongle Adapter Bluetooth USB V2.0 Windows XP/VISTA/7 features:
- Bluetooth specification V2.0 - Supporting profiles: networking, dial-up, fax, LAN access and handset - Operation system Windows98, 98se, Me, 2000, XP, Vista, Windows7 - Receiving/sending range: 100m

This module is a passive buzzer, a low trigger level alarm for Arduino. It emits different sounds at various frequencies. The buzzer sounds when the I / O port input is low level. 

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.