I still need to finish coding the calibration routine, but I wanted to look at the hardware. I dug out a reed switch module, a hall effect module, and some bare reed switches. The module wasn't necessary for the reed switch, which is a discrete input, but it provided a light, which was helpful for testing. The hall effect module was convenient because it lit an LED whenever the field strength exceeded a value I set with the onboard potentiometer.
I used reed switches before, and they have a peculiar trait where they lose connection when they're in the middle of a magnet's field. I haven't researched this, but I suspect it is a phenomenon where the internal reeds become identically magnetized and repel each other. I tested each module around the rim motor's rim, and I could sense several magnets pass during each rotation.
The light on the right is the digital signal indicator
I ran my calibration program while connected to each module, and data flew by in the graphing window. I suspect I captured motor rotations faster than I could transmit the data, even though the Arduino Micro has a native USB and a high baud rate. The red lines on the graph filled the window in less than five seconds.
So much data
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.
2022-11-08
I used reed switches before, and they have a peculiar trait where they lose connection when they're in the middle of a magnet's field. I haven't researched this, but I suspect it is a phenomenon where the internal reeds become identically magnetized and repel each other. I tested each module around the rim motor's rim, and I could sense several magnets pass during each rotation.
I ran my calibration program while connected to each module, and data flew by in the graphing window. I suspect I captured motor rotations faster than I could transmit the data, even though the Arduino Micro has a native USB and a high baud rate. The red lines on the graph filled the window in less than five seconds.
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.
2022-11-08
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