RomanSExample of ESPboy meteo station with clock on the self made separate PCB, connected to the extension slot of the ESPboy. There are temperature, humidity, atmospheric pressure (BME280 sensor) and CO2 (CCS811 sensor), real time clock chip (RTC DS3231) and additional bright segment display (TM1637).
ESPboy connected to the internet by means of WiFi, getting correct date and time from NTP server, have build in web server with all sensors information on the page and sending data to the clouds: thingspeak.com and narodmon.ru.
PCB was made in 1 hour and firmware was constructed online in 20 minutes here WiFi-IoT
Web server of the ESPboy meteo station
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