■ Integrated with Soil Moisture, temperature or with EC (Conductivity) measurement
The sensor is applicable for science research, irrigation, greenhouse, smart agriculture etc. Sensor with relatively small size and can be used for pot culture and Seedling tray. It sealed with resin packaged plastic body with sensing rods which can be insert directly into the soil with long time stability. MT05S is 1-Wire soil moisture sensor, measuring soil moisture content, temperature and EC(Conductivity) according to the order information. For more detail on 1-Wire Soil Moisture Sensor, please refer to link below:ġ-Wire Soil Moisture Sensor with Temperature and EC (Conductivity) Measurement. Tc_100 = (6 * TReading) + TReading / 4 // Scale by the sensitivity (0.This project shows how to use 1-Wire Soil Moisture Sensor, Especially on Arduino/ESP32 and Raspberry Pi, using ONLY ONE I/O pin. TReading = (TReading ^ 0xffff) + 1 // 2's comp If (SignBit) // If the MSB is negative, take the Two's Compliment to make the reading negative SignBit = TReading & 0x8000 // Mask out all but the MSB TReading = (OneWireData << + OneWireData OneWireData = ds.read() // Read the 9 bytes into data Int Fract, Whole, Tc_100, SignBit, TReading ĭs.reset() // Reset the OneWire bus in preparation for communicationĭs.skip() // Skip addressing, since there is only one sensorĭs.write(0x44) // Send 44, the conversion commandĭelay(1000) // Wait for the conversion to completeĭs.write(0xBE) // Send the "Read Scratchpad" command Hard coding for now, because I can't declare this in a case.īyte OneWireData // Defining stuff for the added OneWire function because I'm getting irritated with trying to make this fit into a case or function. OneWire ds(2) // Create a OneWire Object "ds" on pin 2. So, at the bottom I defined the function: I choose to wrap the OneWire code as a function to make the case structure a bit cleaner. Then I modified LabVIEWInterface.pde with the following:Īnd then at the end of the case structure: To start, I modified LVIFA_Base.pde and added this after #include : In my case, since I only planned to read the temperature once on command and not try to address a bunch of sensors at once, I created a static function that handled all the OneWire communication. vi to return the data from the device to LabVIEW. since I knew which type of sensor I had.) The second is to create or modify a. The first is to modify the firmware to include the code (in this case, I used the example OneWire code from here but I modified it to remove the check for sensor typed, etc. So, in order to add support for new code, there's two things you have to do.
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