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This is WeMos ESP8266 D1 R2 V2.1.0 WiFi Development Board. The WeMos D1 is an ESP8266 WiFi based board that uses the Arduino layout with an operating voltage of 3.3V.

the board is controlled by the ESP8266 chip (a 32-Bit processor) and has a larger flash memory compared to an Arduino Uno. It consists of 11 digital I/O pins and 1 analog (input) pin. the board can be connected using a Micro-B type USB cable. The D1 R2 is a WiFi capable ESP8266EX based development board in the form of the Arduino UNO board format.This board is compatible with theArduino IDEand withNodeMCU.

The D1 R2 also features an onboard switching power supply which allows you to power the board from a power supply up to 12V.

This is Zigbee XBee Pro S2C 802.15.4 Module 63mW 3Km. The XBee and XBee-PRO ZigBee RF modules provide cost-effective wireless connectivity to electronic devices. They are interoperable with other ZigBee PRO feature set devices, including devices from other vendors. The XBee802.15.4 products enable robust end-point connectivity with ease. Whether deployed as a pure cable replacement for simple serial XBEE S2C 802.15.4 RF MODULES communication, or as part of a more complex hub-and-spoke network ofsensors, XBee 802.15.4 RF modules maximize performance and ease of development. XBee and XBee-PRO ZigBee modules are ideal for hobbyists and educational research as well as applications in the energy and controls markets where manufacturing efficiencies are critical. The Serial Peripheral Interface (SPI) provides a high-speed interface and optimizes the integration with embedded microcontrollers, lowering development costs and reducing time to market. Digis ZigBee compatible module is based on the Ember EM35x (EM357 and EM3587) system on chip (SoC) radio ICs from SiliconLabs, utilizing 32-bit ARM CortexTM M3 processor.