Arduino Uno Thermostat - How to write a program and connect the display?

Question

Hello. I'm new here so apologize in advance for mistakes. I recently purchased an Arduino Uno and am slowly learning programming but need a thermostat for research purposes. Unfortunately, I can not write such a program for a thermostat yet. Hence my question: Could someone write a program...

actin · Answer

And such systems are not enough?

GoldRush124 · Answer

Okay, but this is a program for the thermometer itself and I mean the thermostat, unfortunately these systems are not enough.

Anonymous · Answer

To make a thermostat, you must first measure the temperature, and then, according to your algorithm, you manipulate the outputs to the LED as signaling or to the relay by switching on the actuator (heater, fan, pump, cooling: generally HVAC). At the same time, you can send the temperature value to the LCD in the appropriate function. Here you have a thermostat ready, including a diagram. It only requires a little adjustment with its own Celsius / Farenheit measuring system and equipment .. e marcus

domin122 · Answer

Either I'm blind or stupid, there is no hysteresis in the program above?

Anonymous · Answer

I think you guessed both alternative cases. The hysteresis will be included in his algorithm, as he wrote about the assumptions and requirements of the 1st post. The author will need to do at least something in the specific scope so that he knows what he is doing .... e marcus

domin122 · Answer

I suggest you connect this 16x2 display to you, unless you have a segmented one, for example, on a 7219 or similar system, thus you will avoid playing in the program with the flickering of numbers and characters. You can find how to connect the display on the net. Write if you have a 16x2 driver, and if so, what. Do you have a segmented display or a driver? How so what. And what's your temperature sensor? To put it all together, you need to know the ingredients, because how can anyone write a program if they don't know a single ingredient.

GoldRush124 · Answer

But by any chance you don't need a driver? The display is without a driver. I have a DHT11 and DS18B20 module. Regarding that program, I do not really understand where I should connect the display and signaling LEDs

domin122 · Answer

But you don't have a driver for an LCD or a 7-segment display? You do not need DHT if you want to measure only the temperature. First, collect the components, then it will connect and the program will be modified. If you don't have an LCD driver, you simply won't connect it, or you will use 7 segments, or you can buy an LCD driver. And this 7-segment display, how much digital, how big, anode or cathode do you have?

Anonymous · Answer

He does not have to buy anything. Connect the one who has and will work. Display modules (alphanumeric), no matter what configuration 8 x1; 16x2; 20x2; 20x4; etc. are simply handled by Arduino. The Arduino IDE set includes an appropriate library (library) that allows easy control of such a module. Such a module contains the entire / complete electronics system, including the backlight (in the selected color). It is enough to connect it to the processor and drive it properly. An example of connection is here: I gave an example of the program (link to it) earlier, which only needs to be slightly modified. To see what to modify, you need to analyze it. It's always easier to start this place than to do everything all over again. e marcus

Arduino Uno Thermostat - How to write a program and connect the display?

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