2022-02-26 (Sa) RemoteFinishLine The problem with small controllers

I kept getting instances where my distance sensor code detected a nearby object, so I required that it be closer than 75% of the space I was monitoring. Bumping the unit toward the wall shouldn't trigger anything, and slight misreadings off the wall shouldn't bother anything. I didn't see much difference, so I brainstormed three more ways to ignore these readings. The first was to accumulate several subsequent close-reads, the next was to average many measurements, or I could look for a few close-reads after the first one. It turned out that any measurement that timed out reported a zero, which was responsible for the nuisance tripping. I confirmed this by blocking the transducers with a finger, and my serial feedback confirmed my suspicions. The "beam break" code seems good for now.

I ran into low-memory issues because I was going over 100% of the chip's banks. I deleted the LCD library, and it went down to 73%; without the NeoPixel library, it goes to 75%; without either, the program still requires 50%. I eliminated the lights for now, but when I tried to use the serial port, I went up to 99%. I will need a controller with more memory.

Insufficient MH-Tiny memory

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.
2022-02-22