v 20220529 2
C 40000 40000 0 0 0 title-E.sym
N 54800 41700 61300 41700 4
N 57300 41700 57300 43200 4
T 78500 41800 9 30 1 0 0 0 1
QuantiStatic
C 44900 46200 1 0 0 gnd.sym
N 42600 46700 41200 46700 4
{
T 41200 46800 5 10 1 1 0 0 1
netname=fire_1
}
N 46100 46400 47700 46400 4
{
T 47000 46500 5 10 1 1 0 0 1
netname=sense_1
}
T 13300 -8600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T 13300 -8600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
N 52700 44100 53200 44100 4
{
T 52700 44200 5 10 1 1 0 0 1
netname=v_lipo
}
C 47700 42700 1 90 0 resistor.sym
{
T 47300 43000 5 10 0 1 90 0 1
device=RESISTOR
T 48200 43400 5 10 1 1 180 0 1
refdes=R25
T 47800 42900 5 10 1 1 0 0 1
value=200k
T 47700 42700 5 10 0 1 0 0 1
footprint=0402
}
C 47700 41600 1 90 0 resistor.sym
{
T 47300 41900 5 10 0 1 90 0 1
device=RESISTOR
T 48200 42300 5 10 1 1 180 0 1
refdes=R26
T 47800 41800 5 10 1 1 0 0 1
value=22k
T 47700 41600 5 10 0 1 0 0 1
footprint=0402
}
N 47600 42700 47600 42500 4
N 47600 42600 48900 42600 4
{
T 48400 42700 5 10 1 1 0 0 1
netname=sense_batt
}
C 47500 41300 1 0 0 gnd.sym
T 82400 40400 9 10 1 0 0 0 1
1.0
T 80000 40400 9 10 1 0 0 0 1
2
T 80600 40400 9 10 1 0 0 0 1
2
T 77700 40400 9 10 1 0 0 0 1
main.sch
T 77700 40100 9 10 1 0 0 0 1
http://altusmetrum.org/QuantiStatic
T 13300 -8600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T 13300 -8600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
C 42400 45500 1 0 0 gnd.sym
C 59500 44100 1 0 0 3.3V-plus.sym
N 45000 47300 49400 47300 4
{
T 48300 47400 5 10 1 1 0 0 1
netname=fet_1
}
C 42600 46600 1 0 0 resistor.sym
{
T 42900 47000 5 10 0 1 0 0 1
device=RESISTOR
T 43000 47000 5 10 1 1 180 0 1
refdes=R8
T 43400 47000 5 10 1 1 180 0 1
value=1k
T 42600 46600 5 10 0 1 90 0 1
footprint=0402
}
N 43500 46700 44500 46700 4
C 46000 47300 1 270 0 resistor.sym
{
T 46400 47000 5 10 0 1 270 0 1
device=RESISTOR
T 46300 46900 5 10 1 1 0 0 1
refdes=R14
T 46300 46600 5 10 1 1 0 0 1
value=200k
T 46000 47300 5 10 0 1 270 0 1
footprint=0402
}
C 46000 45200 1 0 0 gnd.sym
C 46200 45500 1 90 0 resistor.sym
{
T 45800 45800 5 10 0 1 90 0 1
device=RESISTOR
T 46300 46000 5 10 1 1 0 0 1
refdes=R20
T 46200 45495 5 10 0 1 90 0 1
footprint=0402
T 46300 45700 5 10 1 1 0 0 1
value=22k
}
N 58300 44100 61300 44100 4
C 59900 43200 1 90 0 capacitor.sym
{
T 59200 43400 5 10 0 1 90 0 1
device=CAPACITOR
T 59600 43900 5 10 1 1 180 0 1
refdes=C37
T 59200 43300 5 10 1 1 0 0 1
value=2.2uF
T 59900 43200 5 10 0 1 0 0 1
footprint=0402
}
C 42600 45800 1 90 0 resistor.sym
{
T 42200 46100 5 10 0 1 90 0 1
device=RESISTOR
T 42300 46500 5 10 1 1 180 0 1
refdes=R501
T 42600 45795 5 10 0 1 90 0 1
footprint=0402
T 42000 46000 5 10 1 1 0 0 1
value=3.3k
}
T -30400 -57400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -30400 -57400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -30400 -57400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -30400 -57400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -80000 -109400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -80000 -109400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -80000 -109400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -80000 -109400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -71200 -97500 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -120500 -148600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -120500 -148600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -120500 -148600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -120500 -148600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -96200 -124600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -96200 -124600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -96200 -124600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -96200 -124600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -55100 -54600 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -104400 -105700 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -104400 -105700 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -104400 -105700 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -104400 -105700 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -28200 -66400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -28200 -66400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -28200 -66400 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -28200 -66400 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -72100 -78700 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -72100 -78700 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -72100 -78700 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -72100 -78700 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -29500 -72800 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -29500 -72800 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
T -29500 -72800 8 10 0 1 0 0 1
vendor_part_number=MMA7260QT-ND
T -29500 -72800 8 10 0 1 0 0 1
vendor_part_number=MCP9700-E/TO-ND
C 61400 42300 1 90 0 resistor.sym
{
T 61000 42600 5 10 0 1 90 0 1
device=RESISTOR
T 61400 42295 5 10 0 1 90 0 1
footprint=0402
T 61100 43000 5 10 1 1 180 0 1
refdes=R39
T 60700 42500 5 10 1 1 0 0 1
value=26.1k
}
C 61400 43200 1 90 0 resistor.sym
{
T 61000 43500 5 10 0 1 90 0 1
device=RESISTOR
T 61400 43195 5 10 0 1 90 0 1
footprint=0402
T 61100 43900 5 10 1 1 180 0 1
refdes=R38
T 60800 43400 5 10 1 1 0 0 1
value=200k
}
C 55700 41700 1 90 0 resistor.sym
{
T 55300 42000 5 10 0 1 90 0 1
device=RESISTOR
T 55700 41695 5 10 0 1 90 0 1
footprint=0402
T 55400 42400 5 10 1 1 180 0 1
refdes=R37
T 55100 42000 5 10 1 1 0 0 1
value=22k
}
C 55700 42600 1 90 0 resistor.sym
{
T 55300 42900 5 10 0 1 90 0 1
device=RESISTOR
T 55700 42595 5 10 0 1 90 0 1
footprint=0402
T 55400 43300 5 10 1 1 180 0 1
refdes=R36
T 55000 42900 5 10 1 1 0 0 1
value=200k
}
N 61300 43200 62400 43200 4
{
T 61700 43300 5 10 1 1 0 0 1
netname=cmp_rail
}
N 55600 43500 55600 44100 4
N 55600 42600 56900 42600 4
{
T 56000 42700 5 10 1 1 0 0 1
netname=cmp_ldo_in
}
C 53200 43900 1 0 0 diode.sym
{
T 53600 44500 5 10 0 1 0 0 1
device=DIODE
T 53500 44400 5 10 1 1 0 0 1
refdes=D3
T 53200 43900 5 10 0 1 0 0 1
footprint=powerdi123
T 53200 43600 5 10 0 1 0 0 1
value=DFLS130L
}
N 54100 44100 56200 44100 4
{
T 54800 44200 5 10 1 1 0 0 1
netname=v_ldo_in
}
N 54800 44000 54800 44100 4
N 54800 43100 54800 41700 4
C 42600 48300 1 0 0 3.3V-plus.sym
N 41200 47700 42300 47700 4
{
T 41200 47800 5 10 1 1 0 0 1
netname=cmp_rail
}
N 41200 48100 42300 48100 4
{
T 41200 48200 5 10 1 1 0 0 1
netname=cmp_ldo_in
}
C 42300 47500 1 0 0 opamp-dual.sym
{
T 43400 48800 5 10 0 1 0 0 1
device=IC
T 42300 47500 5 10 0 1 0 0 1
slot=2
T 42300 47500 5 10 0 1 0 0 1
footprint=8ufson2x2
T 43100 48200 5 10 1 1 0 0 1
refdes=U13
T 43100 47500 5 10 1 1 0 0 1
value=LM293
}
C 42700 47200 1 0 0 gnd.sym
N 43300 47900 43800 47900 4
N 43800 47900 43800 46700 4
T 49200 42000 9 10 1 0 0 0 1
Tolerate power supply up to 30V
C 56000 41400 1 0 0 gnd.sym
T 61900 42000 9 10 1 0 0 0 4
Trigger comparator at 3.844V:

3.844 * 22.0/222.0 = 0.381
3.300 * 26.1/226.1 = 0.381
C 56200 43200 1 0 0 tps70933.sym
{
T 56595 44395 5 10 1 1 0 0 1
refdes=U4
T 56795 43895 5 10 0 1 0 0 1
device=IC
T 56195 43195 5 10 0 1 0 0 1
footprint=SOT23-5
T 56200 43200 5 10 1 1 0 0 1
value=TPS70933
}
C 55700 43600 1 0 0 nc-left.sym
{
T 55700 44000 5 10 0 0 0 0 1
value=NoConnection
T 55700 44400 5 10 0 0 0 0 1
device=DRC_Directive
}
C 49300 43200 1 0 0 gnd.sym
N 49400 45300 47600 45300 4
{
T 48300 45400 5 10 1 1 0 0 1
netname=v_lipo
}
N 48300 46300 49400 46300 4
{
T 48300 46400 5 10 1 1 0 0 1
netname=v_pyro
}
C 71800 41800 1 90 0 resistor.sym
{
T 71400 42100 5 10 0 0 90 0 1
device=RESISTOR
T 71800 41800 5 10 0 0 0 0 1
footprint=0402
T 72200 42500 5 10 1 1 180 0 1
refdes=R15
T 71900 42000 5 10 1 1 0 0 1
value=22k
}
N 71700 42900 71700 42700 4
N 71700 42800 73300 42800 4
{
T 72700 42875 5 10 1 1 0 0 1
netname=sense_pyro
}
C 71600 41500 1 0 0 gnd.sym
N 71700 43800 70600 43800 4
{
T 70525 43900 5 10 1 1 0 0 1
netname=v_pyro
}
T 68975 43150 9 10 1 0 0 0 2
Make it possible to sample 
pyro voltage with ADC
C 71800 42900 1 90 0 resistor.sym
{
T 71400 43200 5 10 0 1 90 0 1
device=RESISTOR
T 72300 43600 5 10 1 1 180 0 1
refdes=R12
T 71900 43100 5 10 1 1 0 0 1
value=200k
T 71800 42900 5 10 0 1 0 0 1
footprint=0402
}
C 71800 43800 1 90 0 resistor.sym
{
T 71400 44100 5 10 0 1 90 0 1
device=RESISTOR
T 72300 44500 5 10 1 1 180 0 1
refdes=R11
T 71900 44000 5 10 1 1 0 0 1
value=200k
T 71800 43800 5 10 0 1 0 0 1
footprint=0402
}
N 70600 44700 71700 44700 4
{
T 70600 44800 5 10 1 1 0 0 1
netname=v_lipo
}
C 44500 47300 1 270 0 n-fet.sym
{
T 44400 47600 5 10 0 0 270 0 1
device=MOSFET
T 44500 47400 5 10 1 1 0 0 1
refdes=Q1
T 44470 47305 5 10 0 1 270 0 1
footprint=TO252FET
T 44300 47800 5 10 1 1 0 0 1
value=IRLR8743PbF
}
C 54600 44000 1 270 0 cap-polar.sym
{
T 55300 43800 5 10 0 0 270 0 1
device=CAPACITOR
T 54300 43700 5 10 1 1 0 0 1
refdes=C39
T 55500 43800 5 10 0 0 270 0 1
symversion=0.1
T 54200 43200 5 10 1 1 0 0 1
value=220uF
T 54600 44000 5 10 0 1 0 0 1
footprint=CAP_FC8
T 54600 44000 5 10 0 1 0 0 1
loadstatus=throughhole
T 54600 44000 5 10 0 1 0 0 1
vendor=digikey
T 54600 44000 5 10 0 1 0 0 1
vendor_part_number=P10296-ND
}
C 61200 72400 1 0 0 tps70933.sym
{
T 61595 73595 5 10 1 1 0 0 1
refdes=U5
T 61795 73095 5 10 0 1 0 0 1
device=IC
T 61195 72395 5 10 0 1 0 0 1
footprint=SOT23-5
T 61200 72400 5 10 1 1 0 0 1
value=TPS70950
T 61200 72400 5 10 0 1 0 0 1
motortest=true
}
C 60700 72800 1 0 0 nc-left.sym
{
T 60700 73200 5 10 0 0 0 0 1
value=NoConnection
T 60700 73600 5 10 0 0 0 0 1
device=DRC_Directive
T 60700 72800 5 10 0 1 0 0 1
motortest=true
}
C 63900 72400 1 90 0 capacitor.sym
{
T 63200 72600 5 10 0 1 90 0 1
device=CAPACITOR
T 63900 72400 5 10 0 1 0 0 1
footprint=0402
T 64200 73200 5 10 1 1 180 0 1
refdes=C38
T 63800 72500 5 10 1 1 0 0 1
value=2.2uF
T 63900 72400 5 10 0 1 0 0 1
motortest=true
}
C 63600 72100 1 0 0 gnd.sym
{
T 63600 72100 5 10 0 1 0 0 1
motortest=true
}
N 63300 73300 76500 73300 4
C 63500 73300 1 0 0 5V-plus.sym
{
T 63500 73300 5 10 0 1 0 0 1
motortest=true
}
N 73400 72500 73900 72500 4
N 73900 70200 73900 73300 4
C 73400 71000 1 0 0 gnd.sym
{
T 75000 70900 5 10 0 1 0 0 1
motortest=true
}
N 73400 71300 73500 71300 4
N 73500 71300 73500 71700 4
N 73400 71700 73500 71700 4
N 61300 41700 61300 42300 4
N 59700 43200 59700 41700 4
T 71400 72200 9 10 1 0 0 0 2
5V Pressure
Sensor Only
N 62300 72400 63700 72400 4
N 61200 73300 59900 73300 4
{
T 59900 73400 5 10 1 1 0 0 1
netname=v_ldo_in
}
C 49400 45200 1 0 0 TE1217861.sym
{
T 50195 45200 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 43500 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 45220 5 10 1 1 0 0 1
refdes=J23
T 49845 45225 5 10 1 1 0 0 1
value=0.25
}
C 49400 44800 1 0 0 TE1217861.sym
{
T 50195 44800 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 43100 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 44820 5 10 1 1 0 0 1
refdes=J22
T 49845 44825 5 10 1 1 0 0 1
value=0.25
}
C 49400 43800 1 0 0 TE1217861.sym
{
T 50195 43800 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 42100 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 43820 5 10 1 1 0 0 1
refdes=J21
T 49845 43825 5 10 1 1 0 0 1
value=0.25
}
C 49400 43400 1 0 0 TE1217861.sym
{
T 50195 43400 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 41700 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 43420 5 10 1 1 0 0 1
refdes=J20
T 49845 43425 5 10 1 1 0 0 1
value=0.25
}
C 49400 47200 1 0 0 TE1217861.sym
{
T 50195 47200 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 45500 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 47220 5 10 1 1 0 0 1
refdes=J27
T 49845 47225 5 10 1 1 0 0 1
value=0.25
}
C 49400 46800 1 0 0 TE1217861.sym
{
T 50195 46800 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 45100 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 46820 5 10 1 1 0 0 1
refdes=J26
T 49845 46825 5 10 1 1 0 0 1
value=0.25
}
C 49400 46200 1 0 0 TE1217861.sym
{
T 50195 46200 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 44500 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 46220 5 10 1 1 0 0 1
refdes=J25
T 49845 46225 5 10 1 1 0 0 1
value=0.25
}
C 49400 45800 1 0 0 TE1217861.sym
{
T 50195 45800 5 10 0 1 0 0 1
footprint=TE1217861
T 52150 44100 5 10 0 1 0 0 1
device=CONNECTOR
T 50305 45820 5 10 1 1 0 0 1
refdes=J24
T 49845 45825 5 10 1 1 0 0 1
value=0.25
}
T 50800 47000 9 10 1 0 0 0 1
Pyro Leads
T 50800 46000 9 10 1 0 0 0 1
Arm Switch
T 50800 45000 9 10 1 0 0 0 1
Power Switch
T 50800 43800 9 10 1 0 0 0 1
Battery +
T 50800 43400 9 10 1 0 0 0 1
Battery -
N 49400 45300 49400 45900 4
N 49400 46300 49400 46900 4
N 47600 45300 47600 43600 4
C 80100 73200 1 0 0 3.3V-plus.sym
C 76400 64900 1 0 0 gnd.sym
C 80200 64900 1 0 0 gnd.sym
C 76300 73100 1 180 0 capacitor.sym
{
T 76100 72400 5 10 0 0 180 0 1
device=CAPACITOR
T 75700 72800 5 10 1 1 180 0 1
refdes=C107
T 76100 72200 5 10 0 0 180 0 1
symversion=0.1
T 76500 72800 5 10 1 1 180 0 1
value=0.1uF
T 76300 73100 5 10 0 1 90 0 1
footprint=0402
}
N 76500 65200 76500 68100 4
N 76500 72900 76500 73300 4
C 75200 72600 1 0 0 gnd.sym
C 81400 73100 1 180 0 capacitor.sym
{
T 81200 72400 5 10 0 0 180 0 1
device=CAPACITOR
T 80600 73100 5 10 1 1 0 0 1
refdes=C108
T 81200 72200 5 10 0 0 180 0 1
symversion=0.1
T 81100 73100 5 10 1 1 0 0 1
value=0.1uF
T 81400 73100 5 10 0 1 90 0 1
footprint=0402
}
C 81400 72600 1 0 0 gnd.sym
N 80200 72900 80500 72900 4
N 81400 69700 80200 69700 4
{
T 81400 69900 5 10 1 1 180 0 1
netname=miso1
}
N 81400 70100 80200 70100 4
{
T 81400 70300 5 10 1 1 180 0 1
netname=mosi1
}
N 81400 70500 80200 70500 4
{
T 81400 70700 5 10 1 1 180 0 1
netname=sck1
}
N 81400 70900 80200 70900 4
{
T 81400 71100 5 10 1 1 180 0 1
netname=cs_adc
}
N 81400 69300 80200 69300 4
{
T 81400 69500 5 10 1 1 180 0 1
netname=adc_drdy
}
N 76600 72900 76300 72900 4
T 77100 40600 9 10 1 0 0 0 3
           Copyright 2022 by Bdale Garbee <bdale@gag.com>
Licensed under the TAPR Open Hardware License, http://tapr.org/OHL

N 76600 65700 76500 65700 4
N 76600 65300 76500 65300 4
N 80200 65300 80300 65300 4
N 80300 65300 80300 65200 4
N 81400 68900 80200 68900 4
{
T 81400 69100 5 10 1 1 180 0 1
netname=adc_done
}
N 81400 71300 80200 71300 4
{
T 81400 71500 5 10 1 1 180 0 1
netname=adc_reset
}
C 73400 71200 1 0 1 conn-4.sym
{
T 73400 71200 5 10 0 1 0 0 1
device=CONNECTOR
T 73400 71200 5 10 0 1 0 0 1
footprint=282834-4
T 75000 71100 5 10 0 1 0 0 1
motortest=true
T 73000 72800 5 10 1 1 0 6 1
refdes=J13
T 72600 70900 5 10 1 1 0 0 1
value=4screws
}
T 71400 72200 9 10 1 0 0 0 2
5V Pressure
Sensor Only
T 70300 71500 9 10 1 0 0 0 2
Pressure sensor output
assumed to be 0.5-4.5V.
C 67100 64400 1 0 0 INA125.sym
{
T 67100 64400 5 10 0 1 0 0 1
device=IC
T 67100 64400 5 10 0 1 0 0 1
value=INA125
T 67100 64400 5 10 0 1 0 0 1
footprint=SO16
T 67100 64400 5 10 0 1 0 0 1
motortest=true
T 67600 70700 5 10 1 1 0 0 1
refdes=U6
}
C 66900 69900 1 0 0 gnd.sym
{
T 66900 69900 5 10 0 1 0 0 1
motortest=true
}
N 67000 70200 67100 70200 4
C 62300 65300 1 0 0 gnd.sym
{
T 62300 65300 5 10 0 1 0 0 1
motortest=true
}
N 66800 66700 66800 67000 4
N 66800 67000 67100 67000 4
N 66800 65800 66800 65400 4
N 66800 65400 67100 65400 4
C 69000 64100 1 0 0 gnd.sym
{
T 69000 64100 5 10 0 1 0 0 1
motortest=true
}
N 69100 64400 71200 64400 4
N 71200 64400 71200 65000 4
N 71200 65000 71100 65000 4
N 69100 71000 69100 71400 4
N 60500 71400 69900 71400 4
N 69900 71000 69900 71400 4
N 74300 71300 76600 71300 4
{
T 74900 71350 5 10 1 1 0 0 1
netname=thrust
}
C 67200 70500 1 90 0 capacitor.sym
{
T 66500 70700 5 10 0 0 90 0 1
device=CAPACITOR
T 67200 70500 5 10 0 1 0 0 1
footprint=0402
T 67200 70500 5 10 0 1 0 0 1
motortest=true
T 66900 71300 5 10 1 1 180 0 1
refdes=C101
T 66400 70600 5 10 1 1 0 0 1
value=0.1uF
}
N 67100 67400 62300 67400 4
N 67100 65000 66000 65000 4
N 66000 65000 66000 67000 4
N 66000 67000 62300 67000 4
N 62300 66600 62400 66600 4
N 62400 66600 62400 65600 4
C 62800 68500 1 0 1 conn-5.sym
{
T 62800 68500 5 10 0 1 0 0 1
footprint=100mil5pin
T 62800 68500 5 10 0 1 0 0 1
device=CONNECTOR
T 62800 68500 5 10 0 1 0 0 1
loadstatus=noload
T 62800 68500 5 10 0 1 0 0 1
motortest=true
T 62445 70395 5 10 1 1 0 6 1
refdes=J10
T 61800 68300 5 10 1 1 0 0 1
value=vref_thrust
}
N 65200 68200 67100 68200 4
C 62300 65700 1 0 1 conn-6.sym
{
T 62300 65700 5 10 0 0 0 0 1
footprint=282834-6
T 62300 65700 5 10 0 1 0 0 1
device=CONNECTOR
T 62300 65700 5 10 0 1 0 0 1
motortest=true
T 61945 67995 5 10 1 1 0 6 1
refdes=J11
T 61400 65400 5 10 1 1 0 0 1
value=6screws
}
N 62300 66200 62400 66200 4
N 62400 65800 62300 65800 4
L 61900 69000 61600 69000 3 0 0 0 -1 -1
L 61600 69000 61600 68600 3 0 0 0 -1 -1
L 61600 68600 61900 68600 3 0 0 0 -1 -1
C 66900 65800 1 90 0 resistor.sym
{
T 66500 66100 5 10 0 0 90 0 1
device=RESISTOR
T 66900 65800 5 10 0 1 90 0 1
footprint=0.125W_Carbon_Resistor
T 66900 65800 5 10 0 1 90 0 1
loadstatus=noload
T 66900 65800 5 10 0 1 90 0 1
motortest=true
T 66600 66500 5 10 1 1 180 0 1
refdes=R106
T 66200 66000 5 10 1 1 0 0 1
value=374
}
C 65200 67700 1 0 1 npn.sym
{
T 64600 68200 5 10 0 0 0 6 1
device=TRANSISTOR
T 65200 67700 5 10 0 0 0 6 1
footprint=SOT23
T 64600 68200 5 10 1 1 0 6 1
refdes=Q3
T 64600 68000 5 10 1 1 0 6 1
value=MMBT2222A
}
N 62800 69000 65400 69000 4
N 65400 69000 65400 68600 4
N 65400 68600 67100 68600 4
N 62800 69400 65800 69400 4
N 65800 69400 65800 69000 4
N 65800 69000 67100 69000 4
N 62800 69800 66200 69800 4
N 66200 69400 66200 69800 4
N 66200 69400 67100 69400 4
N 62800 70200 66600 70200 4
N 66600 70200 66600 69800 4
N 66600 69800 67100 69800 4
N 67000 70500 67000 70200 4
N 64700 68700 64700 71400 4
N 64700 67700 63200 67700 4
N 62800 68600 63200 68600 4
N 63200 68600 63200 67700 4
N 62300 67800 63200 67800 4
T 62700 65100 9 10 1 0 0 0 7
R106 sets gain, see INA125
data sheet for details.

A 3mV/V load cell excited with 10V
needs gain 167 to optimally drive 
5V ADC input, which is 369 ohms.
The next higher std value is 374.
T 60400 68700 9 10 1 0 0 0 1
10V default
T 60900 66100 9 10 1 0 0 0 9
excite +

input +

input -

excite -

shield
N 60500 71400 60500 73300 4
N 73400 72100 76600 72100 4
{
T 74900 72150 5 10 1 1 0 0 1
netname=pressure
}
N 71100 67400 71200 67400 4
N 71100 66600 71200 66600 4
N 71200 66600 71200 70400 4
C 76500 51500 1 0 0 gnd.sym
N 72800 49500 74200 49500 4
{
T 72800 49600 5 10 1 1 0 0 1
netname=alarm_b
}
C 74200 51100 1 90 0 resistor.sym
{
T 73800 51400 5 10 0 0 90 0 1
device=RESISTOR
T 74200 51095 5 10 0 1 90 0 1
footprint=0402
T 73900 51800 5 10 1 1 180 0 1
refdes=R500
T 73600 51300 5 10 1 1 0 0 1
value=3.3k
}
C 74000 50800 1 0 0 gnd.sym
C 74200 51900 1 0 0 resistor.sym
{
T 74500 52300 5 10 0 0 0 0 1
device=RESISTOR
T 74200 51900 5 10 0 0 90 0 1
footprint=0402
T 74600 52300 5 10 1 1 180 0 1
refdes=R7
T 75000 52300 5 10 1 1 180 0 1
value=1k
}
N 75100 52000 75600 52000 4
C 75600 51700 1 0 0 FDS9926A.sym
{
T 75638 51708 5 10 0 1 0 0 1
device=MOSFET
T 75295 51670 5 10 0 1 0 0 1
footprint=1212-8
T 75600 51700 5 10 0 0 0 0 1
slot=1
T 75600 52900 5 10 1 1 0 0 1
refdes=Q2
T 75600 51700 5 10 1 1 0 0 1
value=Si7232DN
}
N 76500 52000 76600 52000 4
N 76600 52000 76600 51800 4
N 76500 52800 76600 52800 4
N 76600 52800 76600 53200 4
C 76500 49000 1 0 0 gnd.sym
N 72800 52000 74200 52000 4
{
T 72800 52100 5 10 1 1 0 0 1
netname=alarm_a
}
C 74200 48600 1 90 0 resistor.sym
{
T 73800 48900 5 10 0 0 90 0 1
device=RESISTOR
T 74200 48595 5 10 0 1 90 0 1
footprint=0402
T 73900 49300 5 10 1 1 180 0 1
refdes=R13
T 73600 48800 5 10 1 1 0 0 1
value=3.3k
}
C 74000 48300 1 0 0 gnd.sym
C 74200 49400 1 0 0 resistor.sym
{
T 74500 49800 5 10 0 0 0 0 1
device=RESISTOR
T 74200 49400 5 10 0 0 90 0 1
footprint=0402
T 74600 49800 5 10 1 1 180 0 1
refdes=R16
T 75000 49800 5 10 1 1 180 0 1
value=1k
}
N 75100 49500 75600 49500 4
C 75600 49200 1 0 0 FDS9926A.sym
{
T 75638 49208 5 10 0 1 0 0 1
device=MOSFET
T 75295 49170 5 10 0 1 0 0 1
footprint=1212-8
T 75600 49200 5 10 0 0 0 0 1
slot=2
T 75600 50400 5 10 1 1 0 0 1
refdes=Q2
T 75600 49200 5 10 1 1 0 0 1
value=Si7232DN
}
N 76500 49500 76600 49500 4
N 76600 49500 76600 49300 4
N 76500 50300 76600 50300 4
N 76600 50300 76600 50700 4
N 80000 52700 78900 52700 4
{
T 78900 52800 5 10 1 1 0 0 1
netname=v_lipo
}
N 78000 52300 80000 52300 4
{
T 78900 52400 5 10 1 1 0 0 1
netname=fet_a
}
N 80000 51500 77500 51500 4
{
T 78900 51600 5 10 1 1 0 0 1
netname=fet_b
}
N 79700 51900 79700 52700 4
N 79700 51900 80000 51900 4
N 76500 53200 78000 53200 4
N 78000 53200 78000 52300 4
N 76500 50700 77500 50700 4
N 77500 50700 77500 51500 4
T 80900 52500 9 10 1 0 0 0 1
Alarm A
T 80900 51700 9 10 1 0 0 0 1
Alarm B
N 80300 73200 80300 72900 4
N 81400 72900 81500 72900 4
C 76600 65100 1 0 0 ADS131A04.sym
{
T 77000 73300 5 10 1 1 0 0 1
refdes=U7
T 81000 66400 5 10 0 0 0 0 1
device=IC
T 81000 66700 5 10 0 0 0 0 1
footprint=s-pqfp-g32
T 78795 73300 5 10 1 1 0 0 1
value=ADS131A04
}
N 75300 72900 75400 72900 4
N 76600 71700 76000 71700 4
N 76000 69300 76000 71700 4
N 76600 70900 76000 70900 4
N 80200 72500 80300 72500 4
N 80300 72100 80300 72900 4
N 80200 72100 80300 72100 4
N 83100 67300 82800 67300 4
C 82900 67300 1 270 0 capacitor.sym
{
T 83600 67100 5 10 0 1 270 0 1
device=CAPACITOR
T 82900 67300 5 10 0 1 0 0 1
footprint=0402
T 83200 67000 5 10 1 1 0 0 1
refdes=C35
T 83200 66500 5 10 1 1 0 0 1
value=10pF
}
C 81600 67300 1 270 0 capacitor.sym
{
T 82300 67100 5 10 0 1 270 0 1
device=CAPACITOR
T 81600 67300 5 10 0 1 0 0 1
footprint=0402
T 81400 67000 5 10 1 1 0 0 1
refdes=C34
T 81300 66500 5 10 1 1 0 0 1
value=10pF
}
C 83000 66100 1 0 0 gnd.sym
C 81700 66100 1 0 0 gnd.sym
N 83100 67300 83100 67700 4
C 82100 66900 1 0 0 ABM8.sym
{
T 82300 67400 5 10 0 1 0 0 1
device=CRYSTAL
T 82100 66900 5 10 0 1 0 0 1
footprint=ECX2236
T 82000 67400 5 10 1 1 0 0 1
refdes=X2
T 82000 66300 5 10 1 1 0 0 1
value=16.384MHz
}
C 82700 66600 1 0 0 gnd.sym
C 82000 66600 1 0 0 gnd.sym
N 82100 67300 80200 67300 4
N 80200 67700 83100 67700 4
C 80900 66100 1 270 0 capacitor.sym
{
T 81600 65900 5 10 0 1 270 0 1
device=CAPACITOR
T 80900 66100 5 10 0 1 0 0 1
footprint=0402
T 81200 65800 5 10 1 1 0 0 1
refdes=C109
T 81200 65300 5 10 1 1 0 0 1
value=1uF
}
N 80200 66100 81100 66100 4
C 80200 65600 1 0 0 nc-right.sym
{
T 80300 66100 5 10 0 0 0 0 1
value=NoConnection
T 80300 66300 5 10 0 0 0 0 1
device=DRC_Directive
}
C 81000 64900 1 0 0 gnd.sym
C 75000 66900 1 270 0 capacitor.sym
{
T 75700 66700 5 10 0 1 270 0 1
device=CAPACITOR
T 75000 66900 5 10 0 1 0 0 1
footprint=0402
T 75300 66600 5 10 1 1 0 0 1
refdes=C110
T 75300 66100 5 10 1 1 0 0 1
value=1uF
}
N 76600 66100 76500 66100 4
C 75700 66500 1 270 0 capacitor.sym
{
T 76400 66300 5 10 0 1 270 0 1
device=CAPACITOR
T 75700 66500 5 10 0 1 0 0 1
footprint=0402
T 76000 66200 5 10 1 1 0 0 1
refdes=C111
T 76000 65700 5 10 1 1 0 0 1
value=1uF
}
N 76600 66500 75900 66500 4
N 75900 65600 75900 65300 4
N 75200 65300 76500 65300 4
N 75200 66000 75200 65300 4
N 76600 66900 75200 66900 4
C 76300 68600 1 0 0 3.3V-plus.sym
N 76600 68500 76500 68500 4
N 76500 68500 76500 68600 4
N 76500 67700 76600 67700 4
N 73900 68100 76600 68100 4
C 74000 69300 1 90 0 resistor.sym
{
T 73600 69600 5 10 0 0 90 0 1
device=RESISTOR
T 74100 69900 5 10 1 1 0 0 1
refdes=R50
T 74000 69300 5 10 0 1 0 0 1
footprint=0402
T 74100 69500 5 10 1 1 0 0 1
value=10k
}
C 74000 68400 1 90 0 resistor.sym
{
T 73600 68700 5 10 0 0 90 0 1
device=RESISTOR
T 74100 69000 5 10 1 1 0 0 1
refdes=R51
T 74000 68400 5 10 0 1 0 0 1
footprint=0402
T 74100 68600 5 10 1 1 0 0 1
value=10k
}
N 73900 69300 76600 69300 4
C 46000 48200 1 270 0 resistor.sym
{
T 46400 47900 5 10 0 1 270 0 1
device=RESISTOR
T 46300 47800 5 10 1 1 0 0 1
refdes=R17
T 46300 47500 5 10 1 1 0 0 1
value=200k
T 46000 48200 5 10 0 1 270 0 1
footprint=0402
}
N 46100 48200 45300 48200 4
{
T 45800 48250 5 10 1 1 0 6 1
netname=v_lipo
}
N 49400 44900 49105 44900 4
N 49105 44900 49105 44895 4
N 49400 43900 49105 43900 4
N 49105 43900 49105 43895 4
N 48505 44395 48505 43500 4
N 48505 43500 49400 43500 4
C 48500 44900 1 180 1 p-fet.sym
{
T 49405 44395 5 10 0 0 180 6 1
device=MOSFET
T 48505 44795 5 10 1 1 180 6 1
refdes=Q6
T 49400 44300 5 10 1 1 0 0 1
value=IPD068P03L3GATMA1
T 48500 44900 5 10 0 1 0 0 1
footprint=TO252FET
}
C 80000 51400 1 0 0 conn-4.sym
{
T 80300 53000 5 10 1 1 0 0 1
refdes=J3
T 80000 51400 5 10 0 1 0 0 1
footprint=282834-4
T 80000 51400 5 10 0 1 0 0 1
device=CONNECTOR
T 80000 51400 5 10 0 1 0 0 1
value=4screws
}
C 71900 59000 1 0 0 conn-8.sym
{
T 72255 62095 5 10 1 1 0 0 1
refdes=J4
T 71900 59000 5 10 0 1 0 0 1
footprint=0-215079-8
T 71900 59000 5 10 0 1 0 0 1
device=CONNECTOR
T 71900 59000 5 10 0 1 0 0 1
loadstatus=noload
}
C 71800 61600 1 0 0 gnd.sym
N 71900 60700 70700 60700 4
{
T 70700 60750 5 10 1 1 0 0 1
netname=miso1
}
N 71900 60300 70700 60300 4
{
T 70700 60350 5 10 1 1 0 0 1
netname=mosi1
}
N 71900 59100 70700 59100 4
{
T 70700 59300 5 10 1 1 180 6 1
netname=adc_reset
}
N 71900 59900 70700 59900 4
{
T 70700 60100 5 10 1 1 180 6 1
netname=adc_drdy
}
N 71900 59500 70700 59500 4
{
T 70700 59700 5 10 1 1 180 6 1
netname=adc_done
}
N 71900 61100 70700 61100 4
{
T 70700 61300 5 10 1 1 180 6 1
netname=sck1
}
N 71900 61500 70700 61500 4
{
T 70700 61700 5 10 1 1 180 6 1
netname=cs_adc
}
N 76600 70100 76000 70100 4
N 73900 68400 73900 68100 4
N 74900 70500 76600 70500 4
{
T 74900 70550 5 10 1 1 0 0 1
netname=analog3
}
N 76600 69700 74900 69700 4
{
T 74900 69750 5 10 1 1 0 0 1
netname=analog4
}
N 71200 70400 74300 70400 4
N 74300 70400 74300 71300 4
C 72500 69500 1 90 0 zener.sym
{
T 71900 69900 5 10 0 0 90 0 1
device=DIODE
T 72000 69700 5 10 1 1 0 6 1
refdes=Z1
T 72000 70000 5 10 1 1 0 6 1
value=5.1V
T 72500 69500 5 10 0 1 0 0 1
footprint=0805diode
}
C 72200 69200 1 0 0 gnd.sym
T 71400 68400 9 10 1 0 0 0 3
Protect ADC input 
should INA125 output 
exceed 5V ADC range