Isn't C++ a bit overkill for a web app?
Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
11–20 of 124 posts
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#12Anyone know other, possibly cheaper, devices besides https://www.co2meter.com/products/co2mini-co2-indoor-air-qua... that can display current CO2?
I hoped there would be cheaper versions on Aliexpress, but no luck :(
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#13Isn't C++ a bit overkill for a web app?
Not necessarily. You see web servers running on microcontrollers all the time and they are mostly written in C.
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#14Anyone know other, possibly cheaper, devices besides https://www.co2meter.com/products/co2mini-co2-indoor-air-qua... that can display current CO2? I hoped there would be cheaper versions on Aliexpress, but no luck :(
It looks like the same thing is cheaper on Amazon.
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#15Unrelated to the project, but your CO2 levels are far to high. The maximum should be around 600ppm.
Your comment doesn't seem to match up with https://www.kane.co.uk/knowledge-centre/what-are-safe-levels... unless you mixed up CO and CO2? Am I missing something?
EDIT: ah, looking at a CO2 monitor, it says "Indoor air quality: Good (0 to 800ppm), Normal(800 to 1200ppm), Poor (>1200ppm) indication"
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#16Installed a CO2 monitor in my home two days ago. Already changed my life. It warns me when I need additional ventilation and even beeps if CO2 levels raise too high. It sounds silly but it's scary how quickly levels rise when the windows are closed.
>It sounds silly but it's scary how quickly levels rise when the windows are closed.
It might be scary, but is it actually dangerous? It could just be that the levels shown, even if raised, are inconsequential.
Basically wondering about the "Already changed my life" line.
Are we all without one risk certain CO2 death every day, or is the parent overly worried over nothing (and opens windows without really a need for it).
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#17Isn't C++ a bit overkill for a web app?
You are right, C++ is overkill. It would be much better if it was a javascript application with thousands of dependencies.
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#18Installed a CO2 monitor in my home two days ago. Already changed my life. It warns me when I need additional ventilation and even beeps if CO2 levels raise too high. It sounds silly but it's scary how quickly levels rise when the windows are closed.
How do you know this isn't placebo?
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#19Installed a CO2 monitor in my home two days ago. Already changed my life. It warns me when I need additional ventilation and even beeps if CO2 levels raise too high. It sounds silly but it's scary how quickly levels rise when the windows are closed.
> It sounds silly but it's scary how quickly levels rise when the windows are closed. It might be scary, but is it actually dangerous? It could just be that the levels shown, even if raised, are inconsequential. Basically wondering about the "Already changed my life" line. Are we all without one risk certain CO2 death every day, or is the parent overly worried over nothing (and opens windows without really a need for…
It could be dangerous if the room is completely sealed, as the oxygen would eventually run out.
Re: Show HN: I wanted to measure CO2 in my office, so I build a C++ WebServer/App
#20Why are there steps in the CO2 levels?
Since this is based on a reverse-engineered binary protocol and since the step sizes are reasonably close to 64 and 128, I'd guess it's a bug.