Environmental-Measuring-Box

ESP32-based environmental measuring box for volume, temperature, humidity, air humidity, particulate matter, GPS

All measured data are sent to an influx database and in my case analyzed and displayed using grafana.

Circuit diagram

Installation

Once all the parts have been printed, they can be assembled using m2 hexagon socket screws.
The ESP should be located on the adapter board and all sensors should be connected as follows (please refer to the wiring diagram).

#GPS#

TX = RX2 GPIO34 //GPS-RX2
RX = TX2 GPIO35 //GPS-TX2
GND
3.3V

#SDS#

RX = Serial2 GPIO017 //SDS-RX1
TX = Serial2 GPIO016 //SDS-TX1
GND
5V

#ADS1115# !I2C!

SDA = GPIO 21
SCL = GPIO 22
GND
5V

BME680 !I2C!

SDA = GPIO 21
SCL = GPIO 22
GND
3.3V

#DF-Robot-Micro#

Analog = ADS1115 A0
GND
5V

#Shake Sensor#

PIN 25
GND
3,3V

Display !I2C! SDA = GPIO 21
SCL = GPIO 22
GND
3,3V

The first Scetch (Webconfig.ino) can now be compiled and uploaded to the ESP, pay attention to the correct WLAN data on line 29 and 30.
If the ESP restart is completed, the IP (find out via your router) of the ESP can be called up.
It may also work to simply put the link in your browser http://Station.local

Now the basic data for communication with your InfluxDB can be stored:

• Name of the sensor
• Destination address of the InfluxDB
• InfluxDB token
• InfluxDB organization
• InfluxDB Bucket

Once the entered data has been accepted, the main firmware (Station-V1.x) can be uploaded.

After this, the sensor is restarting and is now connected to your WiFi.
If you want to disconnect the sensor of your wifi, to connect to another WiFi, go to the webpage over the ip address, or http://station_< your defined number in the webconfig >.local
Now the should restart and starts a hotspot. You can now follow the steps on the display.
(Or simply connect a Mobile device to the hotspot and follow the steps on the phone)

Used Parts

• ESP32‑IO Development Expansion Board
• ESP32 NodeMCU (Check the correct PIN-Number)
• GPS GY-NEO6MV2
• DfRobot Sound Level Meter
• Analog-Digital-Converter ADS1115
• Temp/Humidity BME680
• Dust-Sensor SDS011 with little pipe of ~3cm (8mm)
  INFO: On the original cable, the well-known JST 2.54 connectors were attached to the side of the esp
• Cylinder head screws Hexagon socket DIN 912 2&4mm
• AZDelivery 0.96 Zoll OLED Display
• AZDelivery SW420 Vibration Sensor
• Jumper Cables

Pictures

Fully assembled sensor

Webconfig

Settings page after uploaded firmware "station-V1.7.bin"