Abstract
Effective communication among units of a system is very essential because it determines the reliability of such a system. A local meteorological station has a target of atmospheric data acquisition, processing and output hence it is an embedded system with different units. Embedded communication among these units was facilitated and made effective by ESP8266 microcontroller a 32-bit Tensilica L106 running at 80MHz system clock equipped with 802.11 IEEE standard Wi-Fi protocols such as TCP/IP stacks. Full duplex data communication was adopted between the Access point server (station mode) and the client mode. The ESP8266 (station) reads all the sensors attached to it identifies the MAC (Media Access Control) address of the clients before processing its request. The data transmission between the client and the server (station) is through HTTP application. Universal Asynchronous Receiver Transmitter (UART) communication was implemented on the ESP8266 client sending the received data to the user computer. The computer uses RS232 logic while the ESP8266 uses TTL logic. USB/UART Bridge, FTD232 IC was adopted to connect ESP8266 with the output device (computer). The data received was viewed on the personal computer. These embedded communication routes and connections were adopted in a local meteorological station in Lagos.
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