Quantity   Component name
1 × J1 - 2x3 male header Used for ICSP. Optional if using staggered hole pattern.
1 × J2 - 1x4 male header I2C port (not present in original prototype PCB)
1 × J3 - 1x4 female header, right-angle Socket for MX12GP
1 × CN2 - USB mini-B jack (SMD) Power Management ICs / Power Supply Modules
1 × LED1 - green LED 0805 SMD
1 × LED2 - red LED 0805 SMD
1 × LED3 - blue LED 0805 SMD
1 × R1-R2 - 22 ohm resistor 0805 SMD
1 × R3 - 10k resistor 0805 SMD
1 × R4 - 82 ohm resistor 0805 SMD
1 × R5 - 1.3k resistor 0805 SMD
1 × R6 - 150 ohm resistor 0805 SMD
1 × R7 - 100 ohm resistor 0805 SMD
1 × U1 - ATMega32u4 microcontroller 44-TQFP package
1 × U2 - AD8223 instrumentation amplifier 8-MSOP
1 × U3 - MPX12GP pressure sensor 4-SIP
1 × Y1 - 16MHz crystal resonator 3-SMD
1 × C1 - 10uF capacitor 0805 SMD
3 × C2-C4 - 0.1uF capacitor 0805 SMD
1 × C5 - 10uF capacitor 0805 SMD
1 × F1 - 500mA PTC resettable fuse 1206 SMD