diff --git a/AirQualityDoc.pdf b/AirQualityDoc.pdf
index a85a61c..8efa08c 100644
Binary files a/AirQualityDoc.pdf and b/AirQualityDoc.pdf differ
diff --git a/docs/.~lock.AirQualityDocs9.odt# b/docs/.~lock.AirQualityDocs9.odt#
new file mode 100644
index 0000000..fefdeb2
--- /dev/null
+++ b/docs/.~lock.AirQualityDocs9.odt#
@@ -0,0 +1 @@
+,layoutdev,layoutmach,05.01.2019 19:22,file:///home/layoutdev/.config/libreoffice/4;
\ No newline at end of file
diff --git a/docs/AirQualityDocs7.odt b/docs/AirQualityDocs7.odt
index 699390d..2aec3b8 100644
Binary files a/docs/AirQualityDocs7.odt and b/docs/AirQualityDocs7.odt differ
diff --git a/docs/AirQualityDocs8.odt b/docs/AirQualityDocs8.odt
new file mode 100644
index 0000000..4a0909e
Binary files /dev/null and b/docs/AirQualityDocs8.odt differ
diff --git a/docs/AirQualityDocs9.odt b/docs/AirQualityDocs9.odt
new file mode 100644
index 0000000..22c7930
Binary files /dev/null and b/docs/AirQualityDocs9.odt differ
diff --git a/pcb/todo b/pcb/todo
new file mode 100644
index 0000000..219e4ef
--- /dev/null
+++ b/pcb/todo
@@ -0,0 +1,16 @@
+add gnd  breakout
+add 5v breakout
+add 3v3 to enc NOT 5v
+
+fix enc pins
+fix orientation of main board
+add anime picture
+
+fix orientation of 3v3 reg
+
+buy more msps
+
+buy 100 1uf 0806 caps put in main box
+
+buylist + pcb : header so you canjust plug in ppd
+
diff --git a/resources/mcp1703_3v3reg.pdf b/resources/mcp1703_3v3reg.pdf
new file mode 100644
index 0000000..a522b76
Binary files /dev/null and b/resources/mcp1703_3v3reg.pdf differ