Thermostat just like Google Nest | Requesting your feedback

We will be covering following topics.
Arduino code for Wemos
Designing very simple circuit to control HVAC
Calibrating Thermister
Designing and printing 3D case

[@rhinosteeves]

Hello, I dont know if you are watching this for questions, but I saw your project and had an issue with compiling ith the Itead nextion library. What library did you use for the nextion

[@turbo2ltr]

Wow, awesome looking project , definitely want to make one. Personally I like simplicity, as in I don't need AI telling me when I should feel cold or predicting my schedule. I hate all these new devices try to be smarter than me.. I am fine telling it when I feel cold. I want 1: wifi control from the internet (Android widget would be awesome..) 2: adjustable swing (hysteresis) 3: safety timeouts 4: current outside temp (from the internet is fine) 5: runtime statistics. This last one I find important.. It will tell you how well your unit is working. When I noticed my unit was sometimes running 100% duty cycle for hours on end, maybe it's time to call the repair man. Personally I like hour by hour runtime statistics. Note that I don't think this really needs to be built in, but it would be cool to be able to program an endpoint to log on/off events so these stats could be generated elsewhere.

[@netmedias7657]

Thank you for your valuable feedback. I will keep thus in mind when doing future tutorials.

[@heliojuniorandruchechen3932]

Ola, ótimo projeto, você também faz alguma promoção em particular?

[@Piccodon]

Very nice D display, looks promising!
DHT22, DS18B20, or Bosch sensor
ESP32, ESP9266 etc. These are cheap enough so one can be used as a server. Maybe Raspberry pi Zero W @ $10
3 latching relays, heat, fan, compressor, Will need a driver chip and 5 logic lines
Android app, simple is OK
Run on local net, hopefully no dependence on internet
Remote sensors, (could also include remote water leak alarm sensors)
Adjustable hysteresis.
Individually adjustable cal factors for each remote sensor.
Touch display like you have, or a simpler TFT or OLED with a few buttons; up, down, on, off, or a multi function button.
Data logging saving to remote server on local net, (good for spotting usage trends or abnormal operation)
Short cycle run protection for compressor,
Control loop to include humidity, as to let compressor run longer to get humidity down.
Small speaker or buzzer for alarms, along with SMS.

[@DrexProjects]

My current thermostat dials are 220 Volt - 2 wire with baseboard heaters. Hopefully it would work to replace that type.
Thanks for the video.

[@netmedias7657]

Make and model?

[@DrexProjects]

@@netmedias7657 honeywell T498A1737

[@Rayrayrr1]

Awesome project! I will definitely be following this and building it to implement at my house to replace my old thermostat!
Some features i would like to see would be; Remote controlling via wifi/internet, Outside temperature - for example the current inside temperature displays for X amount of time and then switches to outside for X amount of time and possibly like an integration into a system like Home assistant.
That would be amazing!
Keep up the good work!

[@ronm6585]

Great vid, thanks.

[@yogeshitaliya473]

Wellcome
After long time

[@netmedias7657]

Thank you

[@markdog3355]

One feature I've seen is a motion sensor, so the thermostat can detect when nobody is home, so it turns the furnace setting down. I guess you can set how often motion has to not be detected for the turn down to occur. One of those RCWL-0516, Doppler motion detectors could be used, so there doesn't have to be hole in the cover, like with a PIR sensor. I'm also in the process of designing my own thermostat, so I look forward to your videos.

[@netmedias7657]

Thank you, I will include it in one of my future tutorials.