From 457095ed2f72c3d6564c7b96995a308dc97015bb Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Thu, 15 Aug 2024 02:20:12 +0200
Subject: [PATCH 1/2] Update gitignore

---
 .gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitignore b/.gitignore
index a954328..5b49c58 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 # KiCAD module backups
 /modules/*/*-backups/
+
+# KiCAD lock files
+~*.lck

From 4d0e02c79279978e6fdb0eb4f63282265164d3b0 Mon Sep 17 00:00:00 2001
From: Rahix <rahix@rahix.de>
Date: Thu, 15 Aug 2024 02:20:20 +0200
Subject: [PATCH 2/2] Document PH00524 a bit more

---
 modules/ph00524/README.md     | 14 ++++++++++++++
 modules/ph00524/ph00524-2.jpg |  3 +++
 2 files changed, 17 insertions(+)
 create mode 100644 modules/ph00524/README.md
 create mode 100644 modules/ph00524/ph00524-2.jpg

diff --git a/modules/ph00524/README.md b/modules/ph00524/README.md
new file mode 100644
index 0000000..6ed5f46
--- /dev/null
+++ b/modules/ph00524/README.md
@@ -0,0 +1,14 @@
+## Board `PH00524-2`
+
+The board controlling the vacuum valves does not show up in the schematics
+delivered with the SEM.  To us, it seems like the functionality was updated by
+merging a few of the boards from the schematics into a single board with even
+more smartness.
+
+`PH00524-2` contains connectors named `FK*`, `FM*`, and `FL*`, leading to the
+assumption that the boards `FK`, `FM`, and `FL` have been integrated into it.
+So far, the connectors seem to match up with the ones shown in the SEM schematics.
+
+There is also a Z80 based system + an EEPROM on the board.
+
+![Image of PH00524-2](./ph00524-2.jpg)
diff --git a/modules/ph00524/ph00524-2.jpg b/modules/ph00524/ph00524-2.jpg
new file mode 100644
index 0000000..d7879b5
--- /dev/null
+++ b/modules/ph00524/ph00524-2.jpg
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:18add0a03d549b76f34314790ebeacd9da1810961a95e05aa610694e8955a35d
+size 466557