![](https://science.brenchies.com/wp-content/uploads/2022/04/OS-OA2.png)
With help from interns, workshop participants, local fishermen and community organizations, we have two working versions of water quality monitoring stations, and resources to support a variety of configurations. They use open source hardware and software to collect water quality readings and send the information to an interactive website.
![](https://science.brenchies.com/wp-content/uploads/2021/12/20211216_123601-edited-1-scaled.jpg)
Guide: Building an Ocean Acidity Monitor
Code: Our GitHub repository
Notes: Updates from our work sessions
Data: Our Thingspeak Dashboard
Options include:
- Wifi or cell tower (GSM) communication
- Acidity, dissolved oxygen, electrical conductivity, and temperature sensors
- Grid power or solar panel with battery
- Adafruit IO or ThingSpeak data collection and display
Our working configurations are:
- GSM connected station monitoring acidity (pH), dissolved oxygen (DO), and temperature (T) using solar power and uploading to Adafruit IO
- WiFi connected station monitoring pH, DO, T, and electrical conductivity (EC) using grid power and uploading to ThingSpeak