Guidance with app development to receive signal

[Boltzman Oscillation]

TL;DR

I need to develop an app that will receive a signal from a heat sensor to ring the phone when temperature is too high. What programming would I need to use? Can that programming receive signals?

I was assigned a project where I need to have a heat sensor send a signal to my phone and cause it to sound an alarm. If my phone is an android what is a good app programming tool for this project, I’ve never done app programming. Would I be able to send a signal from the sensor to the phone? Lastly, I will be using a micro controller in the project too. Any help is appreciated.

 

[berkeman]

Do you only care when you are near the temperature sensor? If so, you could connect to it via Bluetooth.

If not, you will need an Internet-type application, similar to home control apps, I believe.

https://shop.ring.com/pages/doorbell-cameras

 

[Boltzman Oscillation]

Do you only care when you are near the temperature sensor? If so, you could connect to it via Bluetooth.

If not, you will need an Internet-type application, similar to home control apps, I believe.

https://shop.ring.com/pages/doorbell-cameras

Ah yes, we were planning on using bluetooth. Sorry but I made myself unclear, the sensor will need to detect whether the temperature of a room has gone up a certain value and ring the user's phone if it does. Also I might have to make this more barebones than just buying a bluetooth enabled sensor itself although I would have to ask my instructors.

 

[Borek]

Do you know domoticz?

 

[Boltzman Oscillation]

Do you know domoticz?

No, why?

 

[Boltzman Oscillation]

Do you know domoticz?

I can’t use raspberry pi or Arduino either.

 

[anorlunda]

Also I might have to make this more barebones than just buying a bluetooth enabled sensor itself although I would have to ask my instructors.

You are making us guess too much. How barebones? Do you need to design your own bluetooth chips?

Problems like this can sometimes be cleared up by posting the complete statement of the project requirements.

 

[Boltzman Oscillation]

You are making us guess too much. How barebones? Do you need to design your own bluetooth chips?

Problems like this can sometimes be cleared up by posting the complete statement of the project requirements.

You are correct, I myself don't know how barebones it has to be. I will try asking again once I have a better understanding, thank you for your time.

 

[Boltzman Oscillation]

I will be sending a warning text to a phone by using a sim900. I have seen that there are prebuilt setups with the sim900 chip, Sim card reader, antennae, audio ports, etc but I only want to send texts and tell the sim900 when to send one. I could buy the presets and just use the texting functionality but this is for an engineering project and it seems like a waste of money to buy something that you won't use. So my question is, what would I need to send a text? My guess would be a sim900 chip, a Sim card, Sim card reader, a microcontroller (I'm not allowed to use Arduino/pi), and power supply. For context, I will be measuring the temperature of a car with a thermometer, when it reaches a certain temperature then the sim900 should send a text to the owner's phone.

 

[berkeman]

Is this the same as your other thread?

https://www.physicsforums.com/threa...opment-to-receive-signal.976715/#post-6226731
Please don't start multiple threads on the same question/project...

 

[jedishrfu]

Have you looked at projects of this sort online? I would start there.

I know many use Arduino but the other components should be the same and you can get an idea of how to do it and what specific actions your microcontroller will need to do to make it work.

 

[Boltzman Oscillation]

Have you looked at projects of this sort online? I would start there.

I know many use Arduino but the other components should be the same and you can get an idea of how to do it and what specific actions your microcontroller will need to do to make it work.

All of them just use the presets circuits with the sim900 and peripherals.

 

[berkeman]

Is this the same as your other thread?

Duplicate threads merged.

 

[Borek]

I could buy the presets and just use the texting functionality but this is for an engineering project and it seems like a waste of money to buy something that you won't use.

Depends. For a single device or prototyping it is often much faster, easier and cheaper to use something ready (ignoring parts of the functionality) than to start from scratch (you save on designing, debugging and manufacturing). When you want to go to the mass production then yes, saving a cent per unit can be a worthy endeavor.