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Ref,Part,Purpose | ||
J1,40-pin stackable RPi header,Connects board to RPi | ||
J2,"4-pin 0.1"" header",I2C connector if desired | ||
J3,2-pin header,Connects ALRT pin from ADS1115 to RPi if needed | ||
J4,"3-pin 0.1"" header or 3 pin fan extension cable",Connects board to oxygen sensor | ||
R1,330 Ohm resistor,Sets gain for INA126 | ||
C1,"10 uF, 25V",Cap for TL7660 | ||
C2,"10 uF, 25V",Cap for TL7660 | ||
U1,"TL7660, DIP8",Rail splitter for INA126 | ||
U2,"INA126, DIP8",Instrumentation amplifier for oxygen sensor output | ||
U3,Amphenol 1 PSI-D-4V-MINI,Airway pressure sensor | ||
U4,Adafruit ADS1115,4x ADC | ||
U5,Amphenol 5 INCH-D2-P4V-MINI,Differential pressure sensor (for flow measurement) | ||
U6,-,Auxiliary analog output sensor slot |
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