Arduino for ODROID-GO - Weather Station

Make sure that you've followed the Arduino setup guide.
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You can have a portable Weather station in your hand.

Make sure that you have these products:

ODROID-GO
Weather board 2
A MicroUSB cable

Setup the development environment for Arduino on your system.

Before proceeding with this guide, attach Weather board 2 to ODROID-GO and connect it to the PC via micro USB cable.

Visit to see full documentation about SPIFFS.
- https://github.com/me-no-dev/arduino-esp32fs-plugin

SPIFFS stands for SPI Flash File System. ODROID-GO has a small (but enough to use) flash memory which you can upload data by using this tool.

Download a compressed file from this link (ESP32FS-1.0).
Extract the ESP32FS directory to:

Windows: %USERPROFILE%\Documents\Arduino\tools
Linux: ~/Arduino/tools

Create the tools directory before extracting if it doesn't exist.

Open Arduino IDE, and you can see the Tools → ESP32 Sketch Data Upload menu.

Click the Files → Examples → ODROID-GO → Applications → Weather_Station menu to import the Weather station example.

Then, you can see the new window with the example code appear.

This guide assume that the port number is COM3. It might be different from yours.

Verify and compile the sketch. This can be done by clicking Sketch → Verify/Compile menu or by pressing CTRL-R shortcut.

If the compiling completes without any issue, upload the compiled binary by clicking Sketch → Upload or by pressing CTRL-U shortcut.

You can omit the compile process since its done automatically when you just upload without doing a compile before.
You will know the uploading is complete by the message: “Hard resetting via RTS pin…”.

This example has a web server program to serve measurements via a web page.
To see that page, you have to upload the web page data to the ODROID-GO's flash memory.
SPIFFS lets you do that.

If you click the Tools → ESP8266 Sketch Data Upload menu, SPIFFS utility will find the data directory in the current library and send it.

Click the menu to upload.

The uploading is complet when the message “Hard resetting via RTS pin…“ is displayed.

After the upload completes, ODROID-GO reboots automatically.

The screen showing each data measurement appears on the ODROID-GO, and after few seconds, the blue LED in the middle of the board turns on.

The blue LED indicates that the web server on the board is ready so that you can connect to it and read the data from the ODROID-GO's access point.

Find the Wifi AP named ODROID_GO_**** and connect to it.
The default password is 12345678.

Open a web browser and navigate to 192.168.4.1. This IP address is set by default.
You can see the web GUI showing each measurement, and the blue LED now keeps blinking after the socket communication starts.