My sister wanted a device that could detect small changes in barometric pressure and alert her with a light and sound. It shouldn't be challenging to set up, but it should be easy to recognize at a glance.
I ordered some simple sensors and took some parts I had in stock. I want to use a piezo element to emit sound, and an RGB LED for more precise notifications, a couple of potentiometers to set spike sensitivity, and a second for when the pressure slowly moves more than a certain amount. The light will change to one of five colors depending on pressure drops, rises, and whether that change is a spike.
Example:
Green - Working, no alerts
Red - Pressure spike
Yellow - Slow pressure rise
Blue - Pressure plummet
Cyan - Slow pressure drop
Running the example code
I downloaded the latest Arduino IDE (V 2.0.0!) and installed it on two machines. I got used to the new layout since the last one I used was V 1.8.13. I ran the example code from Adafruit and finally got both setups registering the pressure in Pascals.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-09-
I ordered some simple sensors and took some parts I had in stock. I want to use a piezo element to emit sound, and an RGB LED for more precise notifications, a couple of potentiometers to set spike sensitivity, and a second for when the pressure slowly moves more than a certain amount. The light will change to one of five colors depending on pressure drops, rises, and whether that change is a spike.
Example:
Green - Working, no alerts
Red - Pressure spike
Yellow - Slow pressure rise
Blue - Pressure plummet
Cyan - Slow pressure drop
I downloaded the latest Arduino IDE (V 2.0.0!) and installed it on two machines. I got used to the new layout since the last one I used was V 1.8.13. I ran the example code from Adafruit and finally got both setups registering the pressure in Pascals.
Twin controllers
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2022-09-
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