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.

Remote Control Compatible Garage 4 Channels Rolling Code (Water Resistant)

Replace all your Command Confusion with the Broadlink RM Mini 3 Universal Smart Home Wifi IR Remote Control with App and Professional Support, Compatible with Scene and Suspend Mode, Exceptional Hardware Configuration and Time function.

2.4GHz SMA - 3dBi antenna

3dBi GPS antenna SMA connector

SparkFun Infrared Control Kit

SparkFun RFM69 Breakout 915MHz

XBee 6.3mW Wire Antenna - Series 2C ZigBee Mesh

XBee Pro 63mW PCB Antena - Series 2B (ZigBee Mesh)

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.

Kit 2 receiver transmitters 3 channels 433mhz with 2 commands from Orno.

2.4 GHz 3dBi foldable antenna with reverse bias - SMA RF connector. Perfect for prototyping with RF ICs and Xbee modules. 50 ohm impedance. 10.16cm in length.

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.

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!

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.

Stem Shield for your Arduino, the Velleman.

When you assign a high level to the module pin, the electro magnet can suck magnetically conductive objects. Otherwise, it will release the object.

An electro magnet is a type of magnet in which the magnetic field is produced by electric current. An electric current flowing in a wire creates a magnetic field around the wire, due to the Ampere Law. To focus the magnetic field on an electro magnet, the wire is wound into a coil with many twists of wire side by side. The Magnetic Field of All Twists of the Wire passes through the Coil Center, creating a Strong Magnetic Field there.

It's Easy to Use to Learn the Electro Magnet Principle.

The Module KA2284 is a Battery, Power and Audio Level Indicator.

In/Out Shield for your Arduino, Velleman.

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