voltage divider on pressure sensor output, ore bypass caps

diff --git a/telefiretwo.pcb b/telefiretwo.pcb
index 252d31e83f2dd2d100dd6497e6de5afee7b1ef27..bef95d232feb473509274c201ba94165580dd192 100644 (file)
--- a/telefiretwo.pcb
+++ b/telefiretwo.pcb
@@ -900,6 +900,7 @@ Via[752.67mil 1364.00mil 30.00mil 20.00mil 0.0000 15.00mil "" "thermal(1S,3S)"]
 Via[826.67mil 1364.00mil 30.00mil 20.00mil 0.0000 15.00mil "" "thermal(1S,3S)"]
 Via[752.67mil 1268.00mil 30.00mil 20.00mil 0.0000 15.00mil "" "thermal(1S,3S)"]
 Via[826.67mil 1268.00mil 30.00mil 20.00mil 0.0000 15.00mil "" "thermal(1S,3S)"]
+Via[1850.00mil 2065.00mil 30.00mil 20.00mil 0.0000 15.00mil "" "thermal(1S,3S)"]
 
 Element["hidename" "hole-M3" "H1" "unknown" 687.00mil 383.00mil -22.00mil -36.00mil 0 60 ""]
 (
@@ -2016,14 +2017,14 @@ Element["hidename" "282834-8" "J12" "NTC_A" 38.1749mm 190.94mil 0.0000 0.0000 3
 
        )
 
-Element["hidename" "0402" "R104" "27k" 2177.00mil 658.26mil 30.50mil -44.50mil 3 100 ""]
+Element["hidename" "0402" "R104" "10k" 2177.00mil 658.26mil 30.50mil -44.50mil 3 100 ""]
 (
        Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
        Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
 
        )
 
-Element["hidename" "0402" "R105" "10k" 2138.00mil 658.00mil -31.50mil 31.50mil 1 100 ""]
+Element["hidename" "0402" "R105" "5.6k" 2138.00mil 658.00mil -31.50mil 31.50mil 1 100 ""]
 (
        Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
        Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
@@ -2063,6 +2064,41 @@ Element["hidename" "0402" "R401" "10k" 2069.00mil 1732.00mil 14.00mil -0.8702mm
        Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
        Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
 
+       )
+
+Element["" "0402" "C4" "0.1uF" 1997.00mil 1721.00mil 31.50mil 31.50mil 2 100 ""]
+(
+       Pad[15.74mil -3.93mil 15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
+       Pad[-15.74mil -3.93mil -15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
+
+       )
+
+Element["" "0402" "C3" "0.1uF" 57.1058mm 2147.00mil -31.50mil -31.50mil 0 100 ""]
+(
+       Pad[-15.74mil -3.93mil -15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
+       Pad[15.74mil -3.93mil 15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
+
+       )
+
+Element["" "0402" "C2" "0.1uF" 593.26mil 981.00mil -31.50mil -31.50mil 0 100 ""]
+(
+       Pad[-15.74mil -3.93mil -15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
+       Pad[15.74mil -3.93mil 15.74mil 3.93mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
+
+       )
+
+Element["" "0402" "R31" "5.6k" 1850.00mil 55.2384mm 31.50mil -31.50mil 3 100 ""]
+(
+       Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
+       Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
+
+       )
+
+Element["" "0402" "R32" "10k" 1850.00mil 53.6260mm 31.50mil -31.50mil 3 100 ""]
+(
+       Pad[-3.93mil -15.74mil 3.93mil -15.74mil 19.68mil 20.00mil 25.68mil "1" "1" "square"]
+       Pad[-3.93mil 15.74mil 3.93mil 15.74mil 19.68mil 20.00mil 25.68mil "2" "2" "square"]
+
        )
 Layer(1 "top")
 (
@@ -2541,9 +2577,6 @@ Layer(1 "top")
        Line[49.9295mm 46.5513mm 1960.00mil 1827.00mil 10.00mil 20.00mil "clearline"]
        Line[1960.00mil 1827.00mil 1960.00mil 1807.00mil 10.00mil 20.00mil "clearline"]
        Line[1960.00mil 1807.00mil 1970.00mil 1797.00mil 10.00mil 20.00mil "clearline"]
-       Line[1795.00mil 2126.00mil 1795.00mil 2497.00mil 10.00mil 20.00mil "clearline"]
-       Line[1795.00mil 2497.00mil 1706.00mil 2586.00mil 10.00mil 20.00mil "clearline"]
-       Line[1706.00mil 2586.00mil 1651.00mil 2586.00mil 10.00mil 20.00mil "clearline"]
        Line[1651.00mil 2586.00mil 1650.00mil 2585.00mil 10.00mil 20.00mil "clearline"]
        Line[1880.00mil 2870.00mil 1880.00mil 2929.00mil 10.00mil 20.00mil "clearline"]
        Line[1880.00mil 2929.00mil 1962.00mil 3011.00mil 10.00mil 20.00mil "clearline"]
@@ -2657,6 +2690,29 @@ Layer(1 "top")
        Line[27.2431mm 68.0539mm 25.0328mm 68.0539mm 10.00mil 20.00mil "clearline"]
        Line[752.67mil 1364.00mil 752.67mil 1268.00mil 25.00mil 20.00mil "clearline"]
        Line[826.67mil 1364.00mil 826.67mil 1268.00mil 25.00mil 20.00mil "clearline"]
+       Line[1972.00mil 1760.00mil 1972.00mil 43.9486mm 10.00mil 20.00mil "clearline"]
+       Line[1972.00mil 43.9486mm 50.3240mm 1721.00mil 10.00mil 20.00mil "clearline"]
+       Line[2012.00mil 1758.00mil 2012.00mil 43.7322mm 10.00mil 20.00mil "clearline"]
+       Line[2012.00mil 43.7322mm 51.1236mm 1721.00mil 10.00mil 20.00mil "clearline"]
+       Line[2205.00mil 2112.00mil 2205.00mil 53.8348mm 10.00mil 20.00mil "clearline"]
+       Line[2205.00mil 53.8348mm 56.7060mm 2147.00mil 10.00mil 20.00mil "clearline"]
+       Line[2264.00mil 2147.00mil 2264.00mil 2100.00mil 10.00mil 20.00mil "clearline"]
+       Line[2264.00mil 2100.00mil 2268.00mil 2096.00mil 10.00mil 20.00mil "clearline"]
+       Line[609.00mil 981.00mil 643.00mil 981.00mil 10.00mil 20.00mil "clearline"]
+       Line[643.00mil 981.00mil 676.00mil 1014.00mil 10.00mil 20.00mil "clearline"]
+       Line[14.6690mm 981.00mil 533.00mil 981.00mil 10.00mil 20.00mil "clearline"]
+       Line[533.00mil 981.00mil 512.00mil 1002.00mil 10.00mil 20.00mil "clearline"]
+       Line[512.00mil 1002.00mil 512.00mil 1084.00mil 10.00mil 20.00mil "clearline"]
+       Line[1795.00mil 2126.00mil 1849.00mil 2126.00mil 10.00mil 20.00mil "clearline"]
+       Line[1849.00mil 2126.00mil 1850.00mil 2127.00mil 10.00mil 20.00mil "clearline"]
+       Line[1850.00mil 2127.00mil 1850.00mil 2159.00mil 10.00mil 20.00mil "clearline"]
+       Line[1650.00mil 2585.00mil 1713.00mil 2585.00mil 10.00mil 20.00mil "clearline"]
+       Line[1713.00mil 2585.00mil 1804.00mil 2494.00mil 10.00mil 20.00mil "clearline"]
+       Line[1804.00mil 2494.00mil 1804.00mil 2204.00mil 10.00mil 20.00mil "clearline"]
+       Line[1804.00mil 2204.00mil 1817.00mil 2191.00mil 10.00mil 20.00mil "clearline"]
+       Line[1817.00mil 2191.00mil 46.9768mm 2191.00mil 10.00mil 20.00mil "clearline"]
+       Line[46.9768mm 2191.00mil 1850.00mil 55.6382mm 10.00mil 20.00mil "clearline"]
+       Line[1850.00mil 53.2262mm 1850.00mil 2065.00mil 10.00mil 20.00mil "clearline"]
 )
 Layer(2 "GND plane")
 (
@@ -2895,6 +2951,9 @@ NetList()
 (
        Net("+3.3V" "(unknown)")
        (
+               Connect("C2-2")
+               Connect("C3-2")
+               Connect("C4-2")
                Connect("C6-1")
                Connect("C36-2")
                Connect("C37-2")
@@ -3010,6 +3069,9 @@ NetList()
        Net("GND" "(unknown)")
        (
                Connect("C1-1")
+               Connect("C2-1")
+               Connect("C3-1")
+               Connect("C4-1")
                Connect("C6-2")
                Connect("C30-2")
                Connect("C31-2")
@@ -3072,6 +3134,7 @@ NetList()
                Connect("R20-1")
                Connect("R26-1")
                Connect("R30-1")
+               Connect("R32-1")
                Connect("R37-1")
                Connect("R39-1")
                Connect("R104-1")
@@ -3123,7 +3186,8 @@ NetList()
        )
        Net("pressure" "(unknown)")
        (
-               Connect("J13-2")
+               Connect("R31-1")
+               Connect("R32-2")
                Connect("U7-25")
        )
        Net("radio_int" "(unknown)")
@@ -3549,6 +3613,11 @@ NetList()
        (
                Connect("U2-3")
        )
+       Net("unnamed_net73" "(unknown)")
+       (
+               Connect("J13-2")
+               Connect("R31-2")
+       )
        Net("usbdm" "(unknown)")
        (
                Connect("R54-1")

diff --git a/telefiretwo.sch b/telefiretwo.sch
index da3e63fd3feaa9fafe3c891ec3d3f10451a9e8d4..7e95ebac10c7e9bd57c1b89264c3d0a28bb9fdfe 100644 (file)
--- a/telefiretwo.sch
+++ b/telefiretwo.sch
@@ -1,6 +1,6 @@
 v 20130925 2
 C 40000 40000 0 0 0 title-E-bdale.sym
-N 58300 42900 62300 42900 4
+N 58300 42900 67100 42900 4
 N 60800 42900 60800 44400 4
 C 50700 60000 1 0 1 gnd.sym
 T 78500 41300 9 30 1 0 0 0 2
@@ -105,7 +105,7 @@ footprint=hole-M3
 T 81600 52100 5 10 0 1 0 0 1
 loadstatus=noload
 }
-C 62900 45300 1 0 0 3.3V-plus.sym
+C 63000 45300 1 0 0 3.3V-plus.sym
 C 81600 51200 1 0 0 hole_plated.sym
 {
 T 81700 53000 5 10 0 1 0 0 1
@@ -170,7 +170,7 @@ footprint=0402
 T 53000 45600 5 10 1 1 0 0 1
 value=22k
 }
-N 61800 45300 64400 45300 4
+N 61800 45300 67100 45300 4
 N 51500 45500 51600 45500 4
 N 51600 45500 51600 45300 4
 N 51600 46300 51600 46700 4
@@ -187,18 +187,17 @@ T 69400 56100 5 10 0 1 0 0 1
 footprint=0402
 }
 C 70500 55600 1 0 0 gnd.sym
-C 63300 44400 1 90 0 capacitor.sym
+C 63400 44400 1 90 0 capacitor.sym
 {
-T 62600 44600 5 10 0 1 90 0 1
+T 62700 44600 5 10 0 1 90 0 1
 device=CAPACITOR
-T 63600 45200 5 10 1 1 180 0 1
+T 63100 45100 5 10 1 1 180 0 1
 refdes=C37
-T 63200 44500 5 10 1 1 0 0 1
+T 62700 44500 5 10 1 1 0 0 1
 value=2.2uF
-T 63300 44400 5 10 0 1 0 0 1
+T 63400 44400 5 10 0 1 0 0 1
 footprint=0402
 }
-C 63000 44100 1 0 0 gnd.sym
 C 71600 56400 1 0 1 MCP130T.sym
 {
 T 71305 57395 5 10 1 1 0 6 1
@@ -632,26 +631,26 @@ footprint=0402
 }
 N 48900 61500 52000 61500 4
 N 48900 61100 52000 61100 4
-C 64500 43500 1 90 0 resistor.sym
+C 67200 43500 1 90 0 resistor.sym
 {
-T 64100 43800 5 10 0 1 90 0 1
+T 66800 43800 5 10 0 1 90 0 1
 device=RESISTOR
-T 64500 43495 5 10 0 1 90 0 1
+T 67200 43495 5 10 0 1 90 0 1
 footprint=0402
-T 64200 44200 5 10 1 1 180 0 1
+T 66900 44200 5 10 1 1 180 0 1
 refdes=R39
-T 63800 43700 5 10 1 1 0 0 1
+T 66500 43700 5 10 1 1 0 0 1
 value=26.1k
 }
-C 64500 44400 1 90 0 resistor.sym
+C 67200 44400 1 90 0 resistor.sym
 {
-T 64100 44700 5 10 0 1 90 0 1
+T 66800 44700 5 10 0 1 90 0 1
 device=RESISTOR
-T 64500 44395 5 10 0 1 90 0 1
+T 67200 44395 5 10 0 1 90 0 1
 footprint=0402
-T 64200 45100 5 10 1 1 180 0 1
+T 66900 45100 5 10 1 1 180 0 1
 refdes=R38
-T 63900 44600 5 10 1 1 0 0 1
+T 66600 44600 5 10 1 1 0 0 1
 value=200k
 }
 C 59200 42900 1 90 0 resistor.sym
@@ -676,10 +675,9 @@ refdes=R36
 T 58500 44100 5 10 1 1 0 0 1
 value=200k
 }
-C 64300 43200 1 0 0 gnd.sym
-N 64400 44400 65500 44400 4
+N 67100 44400 68200 44400 4
 {
-T 64800 44500 5 10 1 1 0 0 1
+T 67500 44500 5 10 1 1 0 0 1
 netname=cmp_rail
 }
 N 59100 44700 59100 45300 4
@@ -1283,7 +1281,7 @@ N 50600 45700 50600 45500 4
 T 58800 49600 9 10 1 0 0 0 1
 Tolerate power supply up to 30V
 C 59500 42600 1 0 0 gnd.sym
-T 62700 42100 9 10 1 0 0 0 4
+T 67600 43300 9 10 1 0 0 0 4
 Trigger comparator at 3.844V:
 
 3.844 * 22.0/222.0 = 0.381
@@ -1986,7 +1984,7 @@ loadstatus=smt
 T 81500 67900 5 10 1 1 180 0 1
 refdes=R105
 T 81100 67400 5 10 1 1 0 0 1
-value=10k
+value=5.6k
 }
 C 81000 66100 1 90 0 resistor.sym
 {
@@ -2003,7 +2001,7 @@ loadstatus=smt
 T 81500 66800 5 10 1 1 180 0 1
 refdes=R104
 T 81100 66300 5 10 1 1 0 0 1
-value=27k
+value=10k
 }
 N 80900 67200 80900 67000 4
 N 80900 67100 82500 67100 4
@@ -2260,9 +2258,9 @@ C 72600 60300 1 0 0 gnd.sym
 N 72400 60800 72700 60800 4
 N 72700 60600 72700 61200 4
 N 72400 61200 72700 61200 4
-N 72400 61600 74100 61600 4
+N 73200 60700 74900 60700 4
 {
-T 73400 61700 5 10 1 1 0 0 1
+T 74200 60800 5 10 1 1 0 0 1
 netname=pressure
 }
 N 53500 54700 54800 54700 4
@@ -2325,3 +2323,72 @@ value=USB header
 N 50600 61900 48900 61900 4
 N 48900 60700 50600 60700 4
 N 48900 60300 50600 60300 4
+C 64600 44400 1 90 0 capacitor.sym
+{
+T 63900 44600 5 10 0 1 90 0 1
+device=CAPACITOR
+T 64100 45100 5 10 1 1 180 0 1
+refdes=C2
+T 63800 44500 5 10 1 1 0 0 1
+value=0.1uF
+T 64600 44400 5 10 0 1 0 0 1
+footprint=0402
+}
+C 65500 44400 1 90 0 capacitor.sym
+{
+T 64800 44600 5 10 0 1 90 0 1
+device=CAPACITOR
+T 65000 45100 5 10 1 1 180 0 1
+refdes=C3
+T 64700 44500 5 10 1 1 0 0 1
+value=0.1uF
+T 65500 44400 5 10 0 1 0 0 1
+footprint=0402
+}
+C 66400 44400 1 90 0 capacitor.sym
+{
+T 65700 44600 5 10 0 1 90 0 1
+device=CAPACITOR
+T 65900 45100 5 10 1 1 180 0 1
+refdes=C4
+T 65600 44500 5 10 1 1 0 0 1
+value=0.1uF
+T 66400 44400 5 10 0 1 0 0 1
+footprint=0402
+}
+N 66200 42900 66200 44400 4
+N 67100 42900 67100 43500 4
+N 65300 44400 65300 42900 4
+N 64400 44400 64400 42900 4
+N 63200 44400 63200 42900 4
+C 73300 59800 1 90 0 resistor.sym
+{
+T 72900 60100 5 10 0 1 90 0 1
+device=RESISTOR
+T 73300 59800 5 10 0 1 0 0 1
+footprint=0402
+T 73800 60500 5 10 1 1 180 0 1
+refdes=R32
+T 73400 60000 5 10 1 1 0 0 1
+value=10k
+}
+C 73100 59500 1 0 0 gnd.sym
+N 72400 61600 73200 61600 4
+T 70400 61400 9 10 1 0 0 0 2
+5V Pressure
+Sensor Only
+C 73300 60700 1 90 0 resistor.sym
+{
+T 72900 61000 5 10 0 1 90 0 1
+device=RESISTOR
+T 73300 60700 5 10 0 1 0 0 1
+footprint=0402
+T 73800 61400 5 10 1 1 180 0 1
+refdes=R31
+T 73400 60900 5 10 1 1 0 0 1
+value=5.6k
+}
+T 71400 70000 9 10 1 0 0 0 3
+adjust output
+resistor divider
+if not using 5V!