A simple ESP8266 based weather BME280 sensor/logger that logs into an influxDB database.

Connect BME280 sensor to GPIO4 and GPIO5:

BME280-SDA <--> ESP8266-GPIO4

BME280-SCL <--> ESP8266-GPIO5

BME280-GND <--> ESP8266-GND

BME280-VCC <--> ESP8266-VCC (3.3 V)

In order to run from battery the sensor deep sleeps most of the time. In order to decrease current consumption to minimum modules with included regulators and USB <--> RS232 are not recommended.

For waking from sleep connect also ESP8266-GPIO16 <--> ESP8266-RST pins. If ESP8266-GPIO14 is grounded sleep is disabled disregarding the software configuration.

The device must be configured before the use via a simple command line interface (CLI) connected to the serial port or built-in web server.

Use Arduino or serial terminal to acces CLI. Typed commands must be terminated by '\n' (Ctrl-j).

Commands:

help

set [parameter] [value]

save

(Compiles under Arduino 1.6.13)

Libraries: InfluxDb at version 3.11.0 Wire at version 1.0 NTPClient at version 3.2.0 ESP8266WiFi at version 1.0 DNSServer at version 1.1.1 ESP8266WebServer at version 1.0 arduino_860875 at version 3.11.0 ESP8266HTTPClient at version 1.2 Adafruit_Unified_Sensor at version 1.0.2 Adafruit_BME280_Library at version 1.1.0 SPI at version 1.0 EEPROM at version 1.0