LED Module Full Color RGB Bulb KY-016

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%

An extremely accurate I2C real time clock (RTC) (DFR0469) with crystal compensation and internal rechargeable battery.

Ever needed a microphone for your project. This tiny little board will fulfill all your needs - it is not only mobile, but as well easy to connect. A low power, efficient, omnidirectional AMP401 microphone has an analog output. It works great for near and long range uses and is particularly suitable for a mobile projects given its extremely low energy consumption. You can use it in a range of applications - we can see it used in smartphones, cameras or electronic nannies.

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

The SparkFun Qwiic Cable Kit includes 10 cables of different lengths and styles that will connect your Qwiic boards to each other, to a development platform or to a breadboard. Each Qwiic cable is colour coded red, black, blue and yellow with 1mm JST termination.

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

2 Channel Relay Module 5V 10A for Arduino features:
- 5V relay module with 2 optocoupled channels
- This module can be controlled directly by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
- Channels: 2 (independent protected with Optocouplers)
- Supply voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Insulation: Yes
- LED indicator: For each channel
- Dimensions: 40x 50mm

Voltage Sensor Module 0.02445V ~ 25V.
When the module is powered by 5V voltage detection It does not exceed 25V, and when the module is powered with 3.3V the voltage detection does not exceed 16.5V.
100% Compatible with Arduino.
DC voltage sensor 0-25v for Arduino features:

- Input voltage: 0-25 VDC
- Voltage detection range: 0.02445V-25 VDC
- Analog voltage resolution: 0.00489 V
- DC input connector: cathode terminal connected to VCC, GND negative pole
- Output interface: "+" then 5 / 3.3V, "-" then GND, "s" then the Arduino AD pins

The perfect solution for not worrying about the length required on your RGB LED strip, now with a WiFi driver compatible with the eWeLink APP and voice assistants like Google Home or Alexa. Also includes a 24-key IR remote control.

You will be able to turn on and control your strip lights anytime and anywhere, and control it with just a click on your smart phone or tablet via APP eWeLink, or voice assistants, without time and distance limitations.

Reprogrammable voice module with large storage capacity that can support the maximum 1GB SD card, and support audio files of WAV and ad4 format.
Wtv020-sd module uses wtv020sd-20s Voice chip as master core, with MP3 control mode, one to one key control mode (control 3 voice groups or 5 voice groups), 2-wire serial port control mode and loop play mode after power on. Control mode is set by programming the voice chip, and can't change to another control mode during operation, what control mode do you need, just tell us, we can customize it for you.