The Arduino WTV020-SD MP3 Module is a voice recording module with 1GB SD Card storage capacity. You can upload WAV and AD4 format files that conform to FAT formatting. It supports 6KHz to 32KHz, being 36KHz for AD4 files and 6-16KHz for voice sampling rate (Audio Sampling).

USB2.0 Standard, Backward Compatible, According to RS485 Standard.

In/Out Shield for your Arduino, Velleman.

Each Card pre-programmed with a unique identification number, printed on the card. The Identification Card is suitable for the 125KHZ Card Reader and the Reading Distance is 0cm to 10cm. Used in Identification, Financial Identification, Access Control Systems, Low Frequency Identification Cards and so on. Read-only, not HID card.

The RM433R2 Remote Control is an upgraded version ofthe RM433 with 433MHz, Smoother Surface, equipped with an improved Smart Chip for a greater RF Control Distance. Designed with 8 buttons to Perform Various Functions when running on Different Types of Devices. Such as Fan Speed ​​Adjustment, Brightness Setting, etc. Simple and Elegant Look Gives Any Surface a Beautiful Decoration when Stored on the Wall.

We have no idea what USB device you are hooking up to, but if you want to access the microUSB port on something, you might want this.

infrared devices are widely used and often for remotely controlled devices . With this IR receiver, your Arduino project is now able to receive commands from any IR remote controller.

Need range? The 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector is perfect for you.

NodeMcu consists of open source firmware and a development kit that helps to prototype your IoT (Intemet of Things) project through some lines of Lua language. The NodeMcu has integrated ESP-12 serial WiFi with GPIO, PWM, ADC, I2C and 1-WIRE capabilities, integrates USB-TTL serial with super reliable industrial strength CH340 for superior stability on all supported platforms.

RF Link Transmissor - 434MHz

Now you can go home and rest! With this Electrical Outlet Schuko with Wifi App, you can remotely control your fixtures, saving time and energy!

This is the FeatherWing Adalogger: it adds a real-time clock with battery and micro SD card storage to any Feather mainboard. Using the Headers, you can connect a FeatherWing to the top of your board and let the board fly!

These wireless receivers work with our 434MHz transmitters. They can easily fit on a breadboard and work well with microcontrollers to create a very simple wireless data connection. Since these are just the receivers, they will only work one way data communication, you would need two pairs to act as a transmitter / receiver pair.

The HC-12 433MHz Transceiver is a wireless communication Module, which is based on the RF SI4463 chip, has a built-in microcontroller and can be configured by AT commands, the maximum output power is 100mW (20dBm) and the receiver sensitivity differs from: 117dBm to -100dBm, depending on the transmission speed. Accepts 3.2V - 5.5V and can be used with 3.3V and 5V UART voltage devices.

You can fix it to the wall using screws or double sided tape. Have Command tidy and always at hand with this Simple Support.

Vibration, Drop and Tilt Sensor - Wifi Zigbee - 3 Modes of Use - Different Sensitivities - Mi Home App - High Precision Gyroscope - 6 Axis Accelerometer

You want the best security in your home and we know it. At ElectroFun, we are very aware that you are looking for the best devices for the security of your home, those that offer the best guarantees and sublime quality. So we have an incredible range of sensors for home use, one of the best you can find and that fits you perfectly. We have interesting models like the new Xiaomi Aqara Vibration Sensor , an incredible vibration sensor, which will allow you to be more secure in your home and have an alarm against what may happen. Read on and you will know how!

Compatible with Smart Home Xiaomi - Programmable via My Home App - Button Warning

Xiaomi's range of home products called Xiaomi Smart Home continues to grow and presents a new addition to its collection. It is whether this Switch / Notification Button with which we can give a warning to the smartphone or another product in the Mi Smart Home range in a tactile way. This Xiaomi Switch can be used well to warn a person in the home that they need your presence in the place where you gave the warning, or as an emergency button in case of people with reduced mobility.

The NRF24L01+ Module is an excellent wireless communication option between devices like the Arduino.

Special for garden lighting, this Transmitter and Receiver Kit with 2 Channels allows you to switch the lighting of your Garden in 2 different zones with the commands on and off.

The RM433 Remote Control is an advanced version of 433MHz 4-Button RF. Designed with 8 buttons to perform various functions performed on different types of devices. Like fan speed adjustment, brightness setting, etc.

2.4GHz SMA - 3dBi antenna

Doors and windows that can be used as entrances and exits are the weakest points in the security of your home. An unprotected door or window is like an obvious "Welcome" sign for a thief, so the Sensors of Door/Window are also known as the "Entry Sensor" . As one of the most popular home security devices, the Sensor of Door and DW2-RF Wireless Window is smart enough to know if your door or window is open and you can not only send alert notifications, but also notify you when the entry point is opened, ensuring the security of your home.

The POWR3 has a large output power (25A/5500W) to make your high power devices smart! The POWR3 is powerful enough to act as a smart meter for a single room, connecting all appliances in that location to the POWR3 energy consumption is counted individually. In addition, POWR3 will keep the consumption data for 100 days, which can be exported to CSV on your mobile phone.

This is a simple three track magnetic card reader with serial output.

The RFID USB Reader is a simple to use, USB to serial base unit for the ID-3LA, ID-12LA, and ID-20LA readers. 

Want to control when one of the devices you have connected to a USB port is turned on or not? With the new Sonoff Micro USB Smart Switch Control, you'll be able to control it on your mobile phone, program it to activate when you need it and whatever you have in mind. With a small size and high performance, this Switch is your best ally every day.

WiDo is a WIFI IoT Node development board compatible with Arduino.

SparkFun Bluetooth Modem - BlueSMiRF Silver

This ESP8285 ESP M2 Module provides easy-to-use WiFi for any UART port and is compatible with the HC-06 Bluetooth modules. If your project uses Bluetooth, it is very easy to convert it to WiFi. Using the integrated web interface, WIFI-UART communication can be configured for TCP or UDP sockets on any port.

Switch Module for Wi-Fi Automation 100-240V 16A - Sonoff MINI R3

Control your Arduino projects from anywhere in the world with a free app thanks to the Tuya IoT interface! Connect the Module of Tuya IoT Interface to your Arduino using the 4 included male wires. Then, connect your Arduino to the Cloud IoT Tuya simply by installing the Tuyav library, which is compatible with ATmega Chipsets (or AVR Platform). This will allow you to connect to the Tuya app via WiFi and allow you to control up to 5 outputs.

The ESP8266 Thing is a breakout and development board for the ESP8266 WiFi SoC – a leading platform for Internet of Things (IoT) or WiFi-related projects. The Thing is low-cost and easy to use, and Arduino IDE integration can be achieved in just a few steps.

The kit does not require any soldering and is recommended for anyone with a drive to learn more about Blynk and its uses. So if you are looking for a new challenge or a way to get in on the IoT craze, check out the SparkFun IoT Starter Kit with Blynk Board!

Wireless Intercommunicators with 5-kilometer range, with 8 channels, Cobra.

The Bluetooth Module 4.0 BLE Micro EVB can be easily placed on your PCB card, just ignore problems such as "how to design an antenna", "how to make a bluetooth chip work" and so on. The Bluetooth 4.0 BLE Micro EVB Module is perfect for portable projects. With it, you can use Android or IOS devices to communicate with your clothes!

Smart Relay, WiFi 2.4 GHz IEEE802.11 b / g / n, Up to a Maximum of 10A, Compatible with TUYA Smart, Compatible with Alexa and Google Assistant, Timer Function, Energy Saver and Environmental Protection, Remote Control from Smartphone Anytime, Anywhere, by Nivian Smart.

ITDB031 is a serial port BLE Module. It is based on TI's CC2541 BLE chip. With it, you can transfer data wirelessly and do remote control. It supports central and peripheral modes. And it supports remote control for the other side that is connected. You can also support custom commands when you combine it with other devices. BLE Bee is compatible with XBee. You can simply connect it to XBee.

Note: The serial interface is 3.3V, not the typical 5V, as with many Arduino boards.

This module integrates a Zhongke Weibeidou AT6558 navigation chip and a MAX2659 amplification chip used to amplify the antenna signal. The AT6558 has high performance, supports many types of satellite navigation system, capable of receiving satellite signals on 56 GNSS signal channels from 6 satellite navigation systems, joint location, navigation, weather and more. The module is able to obtain accurate information of global location, fast and precise positioning for any place.

The module can be widely used in vehicle monitoring, car navigation, on-board navigation, notebook navigation, etc. You can connect it to Port C on the M5core via the Grove cable, which is a standard UART interface.

This is an os card for our RFID readers . The SparkFun L eid RFID Breakout converts the 2mm pins to the breadboard in a friendly 0.1 "headers. With this ability the ID-3LA, ID-12LA, and ID-20LA you can weld the reader directly to the header or use the 2 mm connectors

This is the ID-20LA , very simple to use the RFID Innovations ID reader module. With a built-in antenna , the only protrusion is the 2mm pin spacer . Just power the module, use a 125kHz card , and get a serial chain output that contains the card's unique identification.

O SM5100B é um módulo GSM miniatura, quad-band 850 / EGSM 900 / DCS 1800 / PCS 1900, que pode ser integrado num grande número de projetos sem fios. Você pode usar este módulo para realizar quase qualquer coisa que um telemóvel normal pode - mensagens de texto SMS, GSM / GPRS, o TCP / IP, e muito mais!