This week I made progress on getting the water pump actuator to work through the RPi, as well as the soil moisture sensor (HW080) to collect plant data. The actuator code for the heater works as well, though it overheats the wires and smokes so it becomes unsafe. Thus I have decided to not demo that and wait to retry with thicker wires for more safety in the future. I have researched more into the soil moisture, pH, and nutrients sensors, however, due to lack of documentation am still struggling to make it work so will be using the HW080 for the demo instead. We have also instilled all the current working components into our greenhouse so that it is together, and I have added an extra Arduino to the system to reduce the stress on the Raspberry Pi.
By next week, I hope to get the soil moisture, nutrients, pH sensor working as well as the heater without safety issues so that full data can be collected. I also want to start the control code with a pid so that the system will respond to ideal conditions.