ESP 8266 datalogger is 2 layer board which contains esp8266 procesor. This procesor is responsible for logging data from built in sensors as well as from I2C sensors conected to board. It uses Pushingbox API to log data to google spreadsheet. Google spreadsheet also manages time so logger does not have to be connected to RTC or NTP server.
Board contains :
- ESP8266 procesor
- I2C connector
Programing board is managed through FTDI breakout and pads on board. Board can be powered by 3.3V or battery with maximum voltage 3.6V ( lipofe4 is ideal).