![]() ![]() For heating control, the output is on when the temperature is below the set-point, and off above set-point. An on-off controller will switch the output only when the temperature crosses the set-point. The output from the device is either on or off, with no middle state. On/Off ControlĪn on-off controller is the simplest form of temperature control device. In this Arduino example we are making on-off type controller. Depending upon the system to be controlled, the operator will be able to use one type or another to control the process. There are three basic types of controllers: on-off, proportional and PID. What Are the Different Types of Controllers, and How Do They Work? It compares the actual temperature to the desired control temperature, or set-point, and provides an output to a control element. To accurately control process temperature without extensive operator involvement, a temperature control system relies upon a controller, which accepts a temperature sensor such as a thermocouple or RTD and LM35 as input. The temperature controller takes an input from a temperature sensor and has an output that is connected to a control element such as a heater or fan. ![]() Digital Temperature Controller using arduino, here we are using arduino as main controller, this temperature controller controls the temperature of any heating device with given set points, It also displays state of the device either on or off and current temperature.Īs the name implies, a temperature controller is an instrument used to control temperature. ![]()
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