diff --git a/kicad/DIY_detector-cache.lib b/kicad/DIY_detector-cache.lib
new file mode 100644
index 0000000..10cecd3
--- /dev/null
+++ b/kicad/DIY_detector-cache.lib
@@ -0,0 +1,252 @@
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# Connector_Conn_01x02_Female
+#
+DEF Connector_Conn_01x02_Female J 0 40 Y N 1 F N
+F0 "J" 0 100 50 H V C CNN
+F1 "Connector_Conn_01x02_Female" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+A 0 -100 20 901 -901 1 1 6 N 0 -80 0 -120
+A 0 0 20 901 -901 1 1 6 N 0 20 0 -20
+P 2 1 1 6 -50 -100 -20 -100 N
+P 2 1 1 6 -50 0 -20 0 N
+X Pin_1 1 -200 0 150 R 50 50 1 1 P
+X Pin_2 2 -200 -100 150 R 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Connector_Conn_Coaxial
+#
+DEF Connector_Conn_Coaxial J 0 40 Y N 1 F N
+F0 "J" 10 120 50 H V C CNN
+F1 "Connector_Conn_Coaxial" 115 0 50 V V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ *BNC*
+ *SMA*
+ *SMB*
+ *SMC*
+ *Cinch*
+$ENDFPLIST
+DRAW
+A -2 0 71 1636 0 0 1 10 N -70 20 70 0
+A -1 0 71 0 -1638 0 1 10 N 70 0 -70 -20
+C 0 0 20 0 1 8 N
+P 2 0 1 0 -100 0 -20 0 N
+P 2 0 1 0 0 -100 0 -70 N
+X In 1 -200 0 100 R 50 50 1 1 P
+X Ext 2 0 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# DIY_detector-custom-parts_TL072
+#
+DEF DIY_detector-custom-parts_TL072 U 0 40 Y Y 1 F N
+F0 "U" 0 -400 60 H V C CNN
+F1 "DIY_detector-custom-parts_TL072" -50 400 60 H V C CNN
+F2 "" -100 0 50 H I C CNN
+F3 "" -100 0 50 H I C CNN
+DRAW
+S -400 350 350 -350 0 1 0 N
+P 2 0 1 0 -150 50 -100 50 N
+P 2 0 1 0 -100 150 -150 150 N
+P 2 0 1 0 -100 250 -150 250 N
+P 2 0 1 0 50 -250 100 -250 N
+P 2 0 1 0 50 -150 100 -150 N
+P 4 0 1 0 -100 200 -100 0 50 100 -100 200 N
+P 4 0 1 0 50 100 100 100 100 250 -100 250 N
+P 7 0 1 0 100 -50 -150 -50 -150 -200 -100 -200 50 -100 50 -300 -100 -200 N
+X Out1 1 -700 250 300 R 50 50 1 1 O
+X In1- 2 -700 150 300 R 50 50 1 1 O
+X In1+ 3 -700 50 300 R 50 50 1 1 O
+X Gnd 4 -700 -250 300 R 50 50 1 1 O
+X In2+ 5 650 -250 300 L 50 50 1 1 O
+X In2- 6 650 -150 300 L 50 50 1 1 O
+X Out2 7 650 -50 300 L 50 50 1 1 O
+X Vcc 8 650 250 300 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# Device_Battery_Cell
+#
+DEF Device_Battery_Cell BT 0 0 N N 1 F N
+F0 "BT" 100 100 50 H V L CNN
+F1 "Device_Battery_Cell" 100 0 50 H V L CNN
+F2 "" 0 60 50 V I C CNN
+F3 "" 0 60 50 V I C CNN
+DRAW
+S -90 70 90 60 0 1 0 F
+S -62 47 58 27 0 1 0 F
+P 2 0 1 0 0 30 0 0 N
+P 2 0 1 0 0 70 0 100 N
+P 2 0 1 10 20 135 60 135 N
+P 2 0 1 10 40 155 40 115 N
+X + 1 0 200 100 D 50 50 1 1 P
+X - 2 0 -100 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C
+#
+DEF Device_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_CP
+#
+DEF Device_CP C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "Device_CP" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ CP_*
+$ENDFPLIST
+DRAW
+S -90 20 90 40 0 1 0 N
+S 90 -20 -90 -40 0 1 0 F
+P 2 0 1 0 -70 90 -30 90 N
+P 2 0 1 0 -50 110 -50 70 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R
+#
+DEF Device_R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "Device_R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+$ENDFPLIST
+DRAW
+S -40 -100 40 100 0 1 10 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Mechanical_MountingHole
+#
+DEF Mechanical_MountingHole H 0 40 Y Y 1 F N
+F0 "H" 0 200 50 H V C CNN
+F1 "Mechanical_MountingHole" 0 125 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ MountingHole*
+$ENDFPLIST
+DRAW
+C 0 0 50 0 1 50 N
+ENDDRAW
+ENDDEF
+#
+# Mechanical_MountingHole_Pad
+#
+DEF Mechanical_MountingHole_Pad H 0 40 N N 1 F N
+F0 "H" 0 250 50 H V C CNN
+F1 "Mechanical_MountingHole_Pad" 0 175 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ MountingHole*Pad*
+$ENDFPLIST
+DRAW
+C 0 50 50 0 1 50 N
+X 1 1 0 -100 100 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# Sensor_Optical_BPW34
+#
+DEF Sensor_Optical_BPW34 D 0 40 N N 1 F N
+F0 "D" 20 70 50 H V L CNN
+F1 "Sensor_Optical_BPW34" -40 -110 50 H V C CNN
+F2 "OptoDevice:Osram_DIL2_4.3x4.65mm_P5.08mm" 0 175 50 H I C CNN
+F3 "" -50 0 50 H I C CNN
+ALIAS BP104
+$FPLIST
+ Osram*DIL2*4.3x4.65mm*P5.08*
+$ENDFPLIST
+DRAW
+P 2 0 1 6 -100 50 -100 -50 N
+P 2 0 1 0 -80 70 -60 70 N
+P 2 0 1 0 0 -50 0 50 N
+P 2 0 1 0 0 0 -100 0 N
+P 3 0 1 0 -20 130 -80 70 -80 90 N
+P 3 0 1 0 0 50 -100 0 0 -50 N
+P 5 0 1 0 30 130 -30 70 -30 90 -30 70 -10 70 N
+X K 1 -200 0 100 R 50 50 1 1 P
+X A 2 100 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Switch_SW_DPST_x2
+#
+DEF Switch_SW_DPST_x2 SW 0 0 Y N 2 F N
+F0 "SW" 0 125 50 H V C CNN
+F1 "Switch_SW_DPST_x2" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+C -80 0 20 0 0 0 N
+C 80 0 20 0 0 0 N
+P 2 0 0 0 -60 10 60 70 N
+X A 1 -200 0 100 R 50 50 1 1 P
+X B 2 200 0 100 L 50 50 1 1 P
+X A 3 -200 0 100 R 50 50 2 1 P
+X B 4 200 0 100 L 50 50 2 1 P
+ENDDRAW
+ENDDEF
+#
+# power_+9V
+#
+DEF power_+9V #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_+9V" 0 140 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X +9V 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# power_GND
+#
+DEF power_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "power_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+#End Library