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

XBee 6.3mW Wire Antenna - Series 2C ZigBee Mesh

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.

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.

Stem Shield for your Arduino, the Velleman.

It is an easy to use Sensor ID 125Khz Card Reader. Quick to read RFID tags. Plug and play, no extra driver needed. Used in many RFID application systems, such as personnel identification, logistics, access control, conference system, anti-counterfeiting system and industrial production process control.

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

The MFRC522 operates in the frequency range of 13.56 MHz and uses the principle of modulation and demodulation to interact with the RF proximity card. This unit can perform the function of the card reading and writing device, to identify and record various information on the card, to encode and authorize an RF card.

The RFID Smart Lock can provide good security protection for your personal items, in addition to protecting your privacy. It can also improve the safety of children at home, prevent them from being free to open drawers or cabinet doors.

An RFID Reader with PIN Code , from Orno.

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.

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.

RF Link Transmissor - 434MHz

Módulo 433MHZ LORA com alcance 3000m.

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