From d40b311e3f87b333d234490897fdb58760e1f2ea Mon Sep 17 00:00:00 2001 From: Ted Timmons Date: Fri, 22 Jun 2018 15:14:04 -0700 Subject: [PATCH] add basic info to the README Hopefully it'll save others some time researching this. --- README.md | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 824d7ed..3cab6cf 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,11 @@ # PRUSA Laser filament sensor -KiCad PCB layout + +Filament presence and velocity detection using a [PAT9125EL optical laser movement sensor](http://www.pixart.com.tw/product_data.asp?product_id=173&productclassify_id=18&productclassify2_id=51&productclassify_name=Optical%20Tracking%20Sensors&productclassify2_name=Consumer&partnumber=PAT9125EL-TKIT%20PAT9125EL-TKMT), operating at 850nm. + +See also: +* [PAT9125EL datasheet](http://www.pixart.com/upload/PAT9125EL_GDS_V1.2_31052017_20171011150843.pdf) +* [boucaron's investigation into this board](https://steemit.com/printing3d/@boucaron/prusa-mk3-filament-detector-short-study) + +# KiCad PCB layout ![PCB](rev.02/laser-sensor.png)