First try with WiFi module ESP8266 (ESP-07) produced by Espressif. Actually first trying to use this module I have performed at last year. But then my experiments with module end with some firmware malfunction. At this time all goes more or less fine. The first thing which I made after purchasing the module was upload a NodeMCU firmware. This firmware allows me to use the lua-scripts for programming the ESP8266. Since previous year NodeMCU has a lot of changes. A lot of sensors have a support which is built-in NodeMCU. So data from these sensors could be read with use embedded functions without any third-party libraries.
Controlled by ATmega8A Atmel datasheet *.pdf CPU. CPU reads sensors and send data to PC via serial interface (RS-232 , 9600 bod). PCB board was developed in size which allow further installation into the Gainta G-203CMF Gainta datasheet *.pdf housing. Current weather station could measure the next parameters:
- Pressure (BMP085) 225…826 mm.Hg.
- Temperature (DS18B20, DHT22, BMP085) -50…+50°С
- Humidity (DHT22/AM2302) 0…99%