![]() This light sensor will detect the brightness of my avocado plant’s surroundings. In this case, it is used to measure the temperature and humidity of the environment in which my avocado plant lives. This is a very basic and cheap sensor made of two parts: a humidity sensor and a thermistor. CLK serial input pin to pin 12 on the board.CS chip select pin to pin 13 on the board.On the other hand, if the soil is dry or the temperature is too low or too high, a sad emoticon is displayed. If the plant has perfect conditions, I see a smiley face on the LED matrix. ![]() I decided to use it to display the state of my plant. The 8x8 LED matrix is often used to display simple graphics or texts. I wired it to the vcc pin and gnd pin, so I created 3 extra gnd and vcc pins that I will use for my inputs and outputs. Below, you can see the pinouts of all sensors and outputs:Īs I had more inputs and outputs than power and ground pins, I also used the 25 points breadboard. Now it’s time to start putting things together. As soon as I had my account all set up, I could see my portal with my hosted Grafana, Loki, and Graphite instances.Īt this point, I’ve also created my API keys for Loki and Graphite to publish metrics from my monitoring system to these databases. I went to the Grafana Cloud signup and created a new account. The free tier comes with 10,000 series for Graphite metrics and 50GB for logs in Loki, which is definitely more than enough for this monitoring solution. I have decided to use Grafana Cloud - which comes with hosted Grafana, Grafana Loki, and Graphite - for our data storage and data visualization. The next step is to set up our databases and Grafana. If your OS won’t recognize the USB serial automatically, you’ll probably need to install CP210x USB to UART Bridge VCP Driver. I’ve installed version 1.8.10, since newer versions were throwing errors on OS Big Sur, which I use. Arduino compiles the code and then uploads it to your board. You’ll need to install the Arduino IDE open source electronics platform for easy-to-use hardware and software.
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