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Connecting sensors to robonomics network

Requiremets

  • ESP8266 Node MCU v3
  • particle sensor SDS011
  • micro USB cable
  • connecting wires

Assembly

Connection diagram

scheme

Connecting SDS011

  • Pin 1 (TX) -> (RX) Pin D1 (GPIO5)
  • Pin 2 (RX) -> (TX) Pin D2 (GPIO4)
  • Pin 3 (GND) -> GND
  • Pin 4 (2.5m) -> unused
  • Pin 5 (5V) -> VU
  • Pin 6 (1m) -> unused

Sensor is sold with USB adapter and connection wires. You don't need USB adapter, so disconnect wires from it.

disconnect

You may connect it to ESP via connecting wires "Female-Male":

f-m

And connect them to your ESP according to the connection diagram.

Or you can use wires from USB adapter. Disconnect one wire: push on it with some sharp object and carefully pull the wire:

extreme_con

Insert it to last connector:

extr

Then cut connector in the middle:

cut

And connect them to ESP accoding to the connection diagram:

esp_con

Device firmware

Download airrohr-flasher from the latest release for your OS. Releases you can find here. Connect ESP to computer via micro-USB and run flasher.

For Linux:

Firstly you need to get permission to USB port:

sudo usermod -a -G dialout $USER

Then restart computer.

Now you can run flasher (don't forget to give it permission to execute):

chmod +x airrohr-flasher-linux
./airrohr-flasher-linux

For windows:

Unpack flasher and run it with double click.

Choose firmware (english or russian) and press upload. It will take a few minutes.

flasher

Configuration

Reboot your ESP (just reconnect USB to computer). Then connect to airRohr--xxxxxxx wi-fi network and in your browser write address 192.168.4.1:

menu

Go to Configuration and in Wi-Fi Settings add information about your wi-fi network:

config

Then press "Save configuration and restart" and ESP will connect to your wi-fi.

save

Then you need to find ESP in local network (for that your computer and ESP must be in one network). You can do it using airrohr-flasher. Run it and go to Discovery and press Refresh, then you'll be able to see the address.

addr

Write in your browser ESP local address, go to Configuration and tick 'API Robonomics'.

robonomics

Then enable GPS and all sensors that you use and write your coordinates:

gps

Then press "Save configuration and restart".

Results

Go to sensors.robonomics.network, and you will see your sensor on the map. map