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Automatic watering seedlings sprinkler7/25/2023 This pump should be sufficient for an experiment with a single small to medium-sized potted houseplant. This is a very small pump with a maximum flow rate of 100 mL/min, but it can be powered directly from your Arduino. DC liquid pump with tubing (not required if you just want to water your plant manually).N-channel MOSFET (not required if you just want to water your plant manually).LEDs (at least one each of three different colors).Longer wires may be required depending on how far you want to mount your soil moisture sensor from the Arduino. The circuit and example code provided in this project are for the SparkFun sensor, but many other Arduino-compatible soil moisture sensors are available. If you have a Chromebook, see theĪrduino Chrome App page for instructions. Alternatively, you can use the web-based editor, which offers cloud storage of your programs so you can access them from multiple computers. You can install the Arduino Integrated Development Environment (IDE) locally on your computer by following the instructions for your operating system on the Arduino software page. You have several options when it comes to programming your Arduino.Note that since the Arduino project is open source, some starter kits contain third-party Arduino-compatible boards with equivalent functionality. If you decide to purchase a starter kit, make sure you check this project's materials list for other parts you might still need to purchase separately. They contain many of the parts you will need for this and other projects. An Arduino starter kit, like theĮlegoo UNO Super Starter Kit, may be worth it if you plan to do more Arduino projects in the future. The list below shows all the individual parts you need to purchase to do this project.You will need to calibrate the soil moisture sensor so the pump turns on and off at appropriate moisture levels for your plant and its soil. The Arduino will take readings from the soil moisture sensor and use those readings to automatically control the pump. The circuit will use a soil moisture sensor, an Arduino, and a small pump. This way, you do not need to worry about waterproofing your circuit for outdoor use, although that is an optional variation of the project. In this project, you will build your own automatic irrigation system for an indoor plant, like the one in Figure 2. This process requires careful calibration to avoid over- or under-watering the plants. These sensors can detect rainfall or the soil's moisture level, and the irrigation system can be programmed to automatically adjust the amount of water applied or to skip watering altogether. To avoid wasting water, irrigation systems can use an electronic rain sensor or soil moisture sensor. While this is simple, it can also result in overwatering (which can harm plants) and wasting water, because the sprinklers will run even if it is raining or the soil is already wet. They apply a fixed amount of water for a certain period of time every day. Some irrigation systems just run on a timer. A sprinkler system irrigating a field of crops.
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