NN Part Digikey Link Qty Price 1 Capacitor 100n 587-1226-1-ND 2 0.10 x2 2 Capacitor 2.2uF 311-1686-1-ND 1 0.28 3 Resistor 10K RMCF0402JT10K0CT-ND 1 0.10 4 Resistor 100K RMCF0402JT100KCT-ND 1 0.10 5 Diode CUS520H3FCT-ND 1 0.21 6 LED blue/red 1516-1153-1-ND 1 0.63 7 Crystal 32768 535-11899-1-ND 1 1.46 8 Microcontroller MKL05Z32VFK4-ND 1 2.25 9 FDC6305N FDC6305NCT-ND 1 0.45 10 Potentiometer 490-7005-1-ND 1 0.18 11 Connector header S9005E-05-ND 1 1.24 12 Battery holder 2xAAA BC2AAAW-ND 1 1.11 13 Copper clad 473-1000-ND 1 4.88 14 MOSFET N-ch IRLML2502GTRPBFCT-ND 1 0.44 15 MOSFET P-ch IRLML6401PBFCT-ND 1 0.45 16 TPS61221 296-41854-1-ND 1 1.16 17 Inductor 490-5121-1-ND 1 0.43 18 Voltage reg MCP1703-3002E/DB-ND 1 0.62 19 Micro-USB connector 609-4613-1-ND 1 0.46 20 Buzzer 433-1007-1-ND 1 3.63 21 Tactil switch EG4373-ND 3 1.16 x3 22 LCD display NHD-0208BZ-FSW-GBW-33V3-ND 1 10.10 23 14-pin header WM8125-ND 1 1.44 24 14-pic receptacle S7110-ND 1 1.21