Powered by an ATtiny85 micro controller. 15K ohm pull downs. Bicolor status LED(red/green).
Everything on this is wire wrapped by hand. Unit will be powered by the 3d printer's endstop connection it is plugged into. Normally outputs a HIGH, drops to LOW on trigger. Triggers on any single FSR, holds LOW until all FSR(s) are released.
Module frame made with small PCB and M3 screws and M3 hex nuts.
External pins made from 22awg square wire.
I wrote the code and designed the circuit for use with 3d printers that use FSR modules for the auto bed level probing(Deltabot based printers).
#deltaprinter #3dprinter #fsr #calibration #bedlevelling
Otherwise, why are you doing all those other things?
32awg wire wraps VERY easily around components like resistors and LED(s). Another cool thing, 22awg square wire from the Jewelry wire wrapping stores/etc.(michaels, jo-ann fabrics, beads and things, etc) work great as wire wrap posts. Just measure off a length from the 21' spool and cut off a bit. Instal square post that wraps well, inserts into machined sockets and bread boards, and conducts well enough, since it's either copper, steel, or gold/silver plated steel. Great stuff. It is also about the same hardness/softness as typical wire wrap legs, so all the same familiarity there.
This is going to share some code with my other probe project, which uses FSR(Force Sense Resistors) for the same function.
- Bright Roll, Inc.Operations Engineer, 2012 - present
- Glam Media, Inc.Linux/Operations Systems Administration, 2009 - 2012
- VMwareSr. Systems Administrator, 2006 - 2009
A long time resident of California, I occasionally travel to other states and find myself marvelling at the differences in culture, as well as the similarities.
My current passions, all of which are second to my family, include:
- Photography (Wildlife and Cosplay/Model photography rocks!)
- Continuing to learn!
- Finding the best way to do more with less time/effort at work!
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