Initial commit

reverse_engineering/.gitignore

@@ -0,0 +1,29 @@
+# For PCBs designed using KiCad: https://www.kicad.org/
+# Format documentation: https://kicad.org/help/file-formats/
+
+# Temporary files
+*.000
+*.bak
+*.bck
+*.kicad_pcb-bak
+*.kicad_sch-bak
+*-backups
+*.kicad_prl
+*.sch-bak
+*~
+_autosave-*
+*.tmp
+*-save.pro
+*-save.kicad_pcb
+fp-info-cache
+
+# Netlist files (exported from Eeschema)
+*.net
+
+# Autorouter files (exported from Pcbnew)
+*.dsn
+*.ses
+
+# Exported BOM files
+*.xml
+*.csv

reverse_engineering/reverse_engineering.kicad_pcb

@@ -0,0 +1,830 @@
+(kicad_pcb (version 20211014) (generator pcbnew)
+
+  (general
+    (thickness 1.6)
+  )
+
+  (paper "A4")
+  (layers
+    (0 "F.Cu" signal)
+    (31 "B.Cu" signal)
+    (32 "B.Adhes" user "B.Adhesive")
+    (33 "F.Adhes" user "F.Adhesive")
+    (34 "B.Paste" user)
+    (35 "F.Paste" user)
+    (36 "B.SilkS" user "B.Silkscreen")
+    (37 "F.SilkS" user "F.Silkscreen")
+    (38 "B.Mask" user)
+    (39 "F.Mask" user)
+    (40 "Dwgs.User" user "User.Drawings")
+    (41 "Cmts.User" user "User.Comments")
+    (42 "Eco1.User" user "User.Eco1")
+    (43 "Eco2.User" user "User.Eco2")
+    (44 "Edge.Cuts" user)
+    (45 "Margin" user)
+    (46 "B.CrtYd" user "B.Courtyard")
+    (47 "F.CrtYd" user "F.Courtyard")
+    (48 "B.Fab" user)
+    (49 "F.Fab" user)
+    (50 "User.1" user)
+    (51 "User.2" user)
+    (52 "User.3" user)
+    (53 "User.4" user)
+    (54 "User.5" user)
+    (55 "User.6" user)
+    (56 "User.7" user)
+    (57 "User.8" user)
+    (58 "User.9" user)
+  )
+
+  (setup
+    (pad_to_mask_clearance 0)
+    (pcbplotparams
+      (layerselection 0x00010fc_ffffffff)
+      (disableapertmacros false)
+      (usegerberextensions false)
+      (usegerberattributes true)
+      (usegerberadvancedattributes true)
+      (creategerberjobfile true)
+      (svguseinch false)
+      (svgprecision 6)
+      (excludeedgelayer true)
+      (plotframeref false)
+      (viasonmask false)
+      (mode 1)
+      (useauxorigin false)
+      (hpglpennumber 1)
+      (hpglpenspeed 20)
+      (hpglpendiameter 15.000000)
+      (dxfpolygonmode true)
+      (dxfimperialunits true)
+      (dxfusepcbnewfont true)
+      (psnegative false)
+      (psa4output false)
+      (plotreference true)
+      (plotvalue true)
+      (plotinvisibletext false)
+      (sketchpadsonfab false)
+      (subtractmaskfromsilk false)
+      (outputformat 1)
+      (mirror false)
+      (drillshape 1)
+      (scaleselection 1)
+      (outputdirectory "")
+    )
+  )
+
+  (net 0 "")
+  (net 1 "unconnected-(J3-Pad1)")
+  (net 2 "unconnected-(U1-Pad4)")
+  (net 3 "unconnected-(U1-Pad5)")
+  (net 4 "Earth")
+  (net 5 "+5V")
+  (net 6 "Net-(U1-Pad6)")
+  (net 7 "Net-(J1-Pad1)")
+  (net 8 "Net-(C5-Pad1)")
+  (net 9 "Net-(T4-Pad2)")
+  (net 10 "Net-(U1-Pad3)")
+  (net 11 "Net-(U1-Pad7)")
+
+  (footprint "Diode_SMD:D_MiniMELF" (layer "F.Cu")
+    (tedit 5905D8F5) (tstamp 036f04e2-5733-4cf2-a777-e6be27b17053)
+    (at 109.22 91.44 180)
+    (descr "Diode Mini-MELF (SOD-80)")
+    (tags "Diode Mini-MELF (SOD-80)")
+    (property "Sheetfile" "File: reverse_engineering.kicad_sch")
+    (property "Sheetname" "")
+    (path "/9b5b1005-4df1-4c77-98ea-74c3767bf679")
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+    )
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+    )
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+      (effects (font (size 1 1) (thickness 0.15)))
+      (tstamp 2b924759-48fb-40a2-9150-f547d39a08bd)
+    )
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+    (pad "1" smd rect (at -1.75 0 180) (size 1.3 1.7) (layers "F.Cu" "F.Paste" "F.Mask")
+      (net 7 "Net-(J1-Pad1)") (pinfunction "K") (pintype "passive") (tstamp 6b186a70-9d61-4766-a256-8141f7264c05))
+    (pad "2" smd rect (at 1.75 0 180) (size 1.3 1.7) (layers "F.Cu" "F.Paste" "F.Mask")
+      (net 9 "Net-(T4-Pad2)") (pinfunction "A") (pintype "passive") (tstamp 18a98823-2df0-4b62-93ca-11e50379560c))
+    (model "${KICAD6_3DMODEL_DIR}/Diode_SMD.3dshapes/D_MiniMELF.wrl"
+      (offset (xyz 0 0 0))
+      (scale (xyz 1 1 1))
+      (rotate (xyz 0 0 0))
+    )
+  )
+
+  (footprint "Capacitor_SMD:C_0603_1608Metric" (layer "F.Cu")
+    (tedit 5F68FEEE) (tstamp 0cb73672-b8ed-407b-bec1-708a99bf3c8a)
+    (at 119.38 101.6)
+    (descr "Capacitor SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator")
+    (tags "capacitor")
+    (property "Sheetfile" "File: reverse_engineering.kicad_sch")
+    (property "Sheetname" "")
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+    (tags "resistor")
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reverse_engineering/reverse_engineering.kicad_pro

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+}

reverse_engineering/reverse_engineering.kicad_sch

@@ -0,0 +1,1335 @@
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reverse_engineering/simulering.asc

@@ -0,0 +1,47 @@
+Version 4
+SHEET 1 880 680
+WIRE 32 96 -128 96
+WIRE 176 96 112 96
+WIRE 400 96 176 96
+WIRE 400 192 400 96
+WIRE -128 224 -128 96
+WIRE 176 288 176 96
+WIRE 400 336 400 256
+WIRE 400 336 320 336
+WIRE 432 336 400 336
+WIRE 576 336 432 336
+WIRE 320 384 320 336
+WIRE 432 400 432 336
+WIRE -128 512 -128 304
+WIRE 176 512 176 352
+WIRE 176 512 -128 512
+WIRE 320 512 320 464
+WIRE 320 512 176 512
+WIRE 384 512 320 512
+WIRE 432 512 432 464
+WIRE 432 512 384 512
+WIRE 384 560 384 512
+FLAG 384 560 0
+SYMBOL res 128 80 R90
+WINDOW 0 0 56 VBottom 2
+WINDOW 3 32 56 VTop 2
+SYMATTR InstName R1
+SYMATTR Value 10k
+SYMBOL diode 384 192 R0
+SYMATTR InstName D1
+SYMATTR Value 1N914
+SYMBOL cap 416 400 R0
+SYMATTR InstName C1
+SYMATTR Value 1n
+SYMBOL res 304 368 R0
+SYMATTR InstName R2
+SYMATTR Value 1Meg
+SYMBOL voltage -128 208 R0
+WINDOW 123 0 0 Left 0
+WINDOW 39 0 0 Left 0
+SYMATTR InstName V1
+SYMATTR Value PULSE(0 5 0 0 0 1.2u 2.4u)
+SYMBOL cap 160 288 R0
+SYMATTR InstName C2
+SYMATTR Value 1p
+TEXT -162 584 Left 2 !.tran 1m

reverse_engineering/simulering.log

@@ -0,0 +1,23 @@
+Circuit: * J:\Users\Jonatan\Documents\capacitive moisture sensor\reverse_engineering\simulering.asc
+
+Limiting rise time of source v1 to 1.2e-007
+Limiting fall time of source v1 to 1.2e-007
+.OP point found by inspection.
+
+Date: Wed Jan 25 21:43:09 2023
+Total elapsed time: 0.442 seconds.
+
+tnom = 27
+temp = 27
+method = modified trap
+totiter = 83711
+traniter = 83711
+tranpoints = 38384
+accept = 32299
+rejected = 6085
+matrix size = 5
+fillins = 0
+solver = Normal
+Matrix Compiler1: 150 bytes object code size  0.1/0.1/[0.0]
+Matrix Compiler2: 321 bytes object code size  0.1/0.1/[0.1]
+