There is a small amount of flowers in the classrooms at the university. This is mainly due to the fact that not every classroom regularly has a person who would take care of them. The main task of this project is automation watering of flower pots in school classrooms. This watering should help make the university greener and make the air more healthy in classrooms.
What it does
The moisture sensor measures the soil moisture in the pot. If it drops below 45%, it sends a signal to ESP32. It sends then a signal to the water pump, which irrigates the flowerpot. There is a water level sensor in the water container too. If the water level drops below a certain level, it sends a signal to the ESP32. A DHT11 sensor, thet measures air temperature and humidity is also connected to the ESP. All measured values are sent to the Influx database.
How we built it
We built the hardware part on the basis of the scheme in the attachment.
Challenges we ran into
On the first day, while we were working in our school library, we found out pins are not soldered on ESP. And since it´s prohibitet to solder in the library, it was not possible to program the hardware part on the first day. Connecting ESP to wifi and sending data to the database also took us much longer than we planned. That's why we didn't have time to work on other parts.