From 4a86aafe5d6ad1f16381ed339b3ec641239be3e2 Mon Sep 17 00:00:00 2001 From: xengineering Date: Fri, 25 Jul 2025 17:28:27 +0200 Subject: pcb: Remove resistors for ESD protection It is hard to say if these are necessary. For sure they are not necessary anymore when the device is assembled inside the case. Thus the risk is taken to provide some more space and reduce assembly effort. --- pcb/iot-contact.kicad_sch | 174 +--------------------------------------------- 1 file changed, 2 insertions(+), 172 deletions(-) (limited to 'pcb') diff --git a/pcb/iot-contact.kicad_sch b/pcb/iot-contact.kicad_sch index 2799f56..4196935 100644 --- a/pcb/iot-contact.kicad_sch +++ b/pcb/iot-contact.kicad_sch @@ -4703,16 +4703,6 @@ (embedded_fonts no) ) ) - (text "TODO: Reduce ESD / EMC by resistors?" - (exclude_from_sim no) - (at 137.414 15.494 0) - (effects - (font - (size 1.27 1.27) - ) - ) - (uuid "b13334ab-fc44-4178-95ea-9327d0ca6d3d") - ) (junction (at 120.65 148.59) (diameter 0) @@ -4789,7 +4779,7 @@ ) (wire (pts - (xy 190.5 57.15) (xy 190.5 63.5) + (xy 190.5 43.18) (xy 190.5 63.5) ) (stroke (width 0) @@ -5179,7 +5169,7 @@ ) (wire (pts - (xy 187.96 57.15) (xy 187.96 63.5) + (xy 187.96 43.18) (xy 187.96 63.5) ) (stroke (width 0) @@ -5267,16 +5257,6 @@ ) (uuid "81b9ec61-d651-4c98-a8de-59b4af84f22f") ) - (wire - (pts - (xy 187.96 43.18) (xy 187.96 49.53) - ) - (stroke - (width 0) - (type default) - ) - (uuid "82000f6a-6da7-4030-9412-8816e0cd1ec9") - ) (wire (pts (xy 165.1 137.16) (xy 165.1 139.7) @@ -5357,16 +5337,6 @@ ) (uuid "9bed5df8-a8e2-4036-9546-4ca90b3bf8bf") ) - (wire - (pts - (xy 190.5 43.18) (xy 190.5 49.53) - ) - (stroke - (width 0) - (type default) - ) - (uuid "9d139bb7-919b-48e1-a25f-a800a2682db7") - ) (wire (pts (xy 193.04 91.44) (xy 198.12 91.44) @@ -5960,75 +5930,6 @@ ) ) ) - (symbol - (lib_id "Device:R") - (at 190.5 53.34 0) - (unit 1) - (exclude_from_sim no) - (in_bom yes) - (on_board yes) - (dnp no) - (uuid "377b3703-a590-4a55-8b48-a5300fe32ee3") - (property "Reference" "R7" - (at 193.04 52.0699 0) - (effects - (font - (size 1.27 1.27) - ) - (justify left) - ) - ) - (property "Value" "330" - (at 193.04 54.6099 0) - (effects - (font - (size 1.27 1.27) - ) - (justify left) - ) - ) - (property "Footprint" "" - (at 188.722 53.34 90) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (property "Datasheet" "~" - (at 190.5 53.34 0) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (property "Description" "Resistor" - (at 190.5 53.34 0) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (pin "2" - (uuid "1f88bc05-2d8a-4c86-ac21-91926d89c7d3") - ) - (pin "1" - (uuid "e609463d-5bd0-45e5-9305-86632f1944b7") - ) - (instances - (project "iot-contact" - (path "/5defd195-0277-4d04-9f5f-69e505c9845c" - (reference "R7") - (unit 1) - ) - ) - ) - ) (symbol (lib_id "Switch:SW_Push") (at 142.24 139.7 0) @@ -6992,77 +6893,6 @@ ) ) ) - (symbol - (lib_id "Device:R") - (at 187.96 53.34 0) - (mirror y) - (unit 1) - (exclude_from_sim no) - (in_bom yes) - (on_board yes) - (dnp no) - (fields_autoplaced yes) - (uuid "a6fe88c6-33d3-4141-98ed-a653df0815e9") - (property "Reference" "R6" - (at 185.42 52.0699 0) - (effects - (font - (size 1.27 1.27) - ) - (justify left) - ) - ) - (property "Value" "330" - (at 185.42 54.6099 0) - (effects - (font - (size 1.27 1.27) - ) - (justify left) - ) - ) - (property "Footprint" "" - (at 189.738 53.34 90) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (property "Datasheet" "~" - (at 187.96 53.34 0) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (property "Description" "Resistor" - (at 187.96 53.34 0) - (effects - (font - (size 1.27 1.27) - ) - (hide yes) - ) - ) - (pin "2" - (uuid "f84990f4-066a-4857-9f3d-2752dd610f2d") - ) - (pin "1" - (uuid "97d50174-8922-4c51-a138-8c23a74f8115") - ) - (instances - (project "" - (path "/5defd195-0277-4d04-9f5f-69e505c9845c" - (reference "R6") - (unit 1) - ) - ) - ) - ) (symbol (lib_id "power:GND") (at 132.08 53.34 0) -- cgit v1.2.3-70-g09d2