Explanation: Arduino xbee v1.1 | Test & Recommendation

Small (48mm x 18mm), robust and powerful board Based on the ATMega4809 AVR processor Clock 20MHz, Flash 48KB, SRAM 6KB, EEPROM 256byte. Two 15 pins connectors (one on each side) that are pin to pin compatible with the original Arduino Nano Power supply architecture based on a high efficiency DC-DC converter allows powering the board at up to 21V and to drive output peripherals with up to 950mA without overheating. Get started in minutes with thousands of sketches available in open source

Maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability, Particularly suitable for industrial control applications. 125 Communications channels, Multi-point communication and frequency hopping to meet the communication needs. Built-in hardware CRC error detection, Multipoint communication address control. Built-in 2.4Ghz antenna. nRF24L01 is a single chip radio transceiver for the worldwide 2.4 - 2.5 GHz ISM band. Compatible with Arduino and Raspberry Pi. Applications: wireless peripherals, remote control systems such as RC vehicles and consumer remote electronics, wireless voice transmission such as VoIP, wireless sensor networks, wireless networks, home and commercial automation.

Note: If you only received 1PC NRF24L01, please feel free to contact me email. We will solve it for you. Wish you could understand. 2PCS NRF24L01 Wireless Transceiver Module: Built-in 2.4Ghz antenna: available software to set the address, only received local address when output data(Provide interrupt instruction), can be directly connected to a variety of microcontrollers Built-in 2.4Ghz antenna, maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability, Particularly suitable for industrial control applications 125 selectable channels (frequencies): having channels can help to avoid any possible interference with nearby devices that are using the same frequency Available software to set the address, only received local Address when output data(Provide interrupt instruction), can be directly connected to a variety of microcontrollers, Software programming is very convenient Widly Applications: The device can be wildly used to wireless remote control, somatosensory devices, RFID, NFC, smart grid, smart home, wireless audio etc. Good idea for your DIY Project

3.3V and 5V dual power output 3.3V and 5V IO compatible USB 2.0 protocol

HiLetgo 4pcs NRF24L01+ Wireless Transceiver Module Multi-frequency: 125 frequency points Low operating voltage : 1.9 ~ 3.6V low voltage operation

UART communication board, XBee interface, USB interface XBee USB Adapter is a UART communication board which supports XBee connectivity,features UART interface, USB interface, and onboard buttons/LEDs, provides an easy way for developing/debugging. It can be used in the following situations :Test XBee modules: onboard buttons/LEDs for easy testing,Program/Configure XBee modules: make it easy to program/configure the XBee modules frequently,USB to UART module: features CP2102, provides UART interface and power output interface, connect it to your system easily XBee modules above refer to modules with XBee-compatible interface, like: Core2530 (B), Dual-mode Bluetooth, etc Note:The XBee/ZigBee modules and Core2530 (B) in the photos are NOT included.

Mega Shield is a extension board for Arduino Mega and Google ADK. Arduino Mega1280/2560 compatible Grove compatible Google ADK compatible