NN	Part			Digikey Link		Qty		Price
1	Capacitor 1uF		587-2477-1-ND  		2		0.23 x2
2	Capacitor 10uF		1276-1052-1-ND 		2		0.16 x2
3	Capacitor 22uF		1276-6780-1-ND		1		0.38
4	Microcontroller		EFM32ZG110F32-QFN24T-ND	1		1.42
5	Connector header	S9008E-05-ND		1		0.98
6 	Copper clad		473-1000-ND		1		5.86
7 	TPS62172		296-39449-1-ND		1		1.53
8 	Inductor 2.2uH		587-2905-1-ND		1		0.35
9 	USB connector		A107790-ND		1		1.64
10	Capacitor 100nF		587-1456-1-ND		7 (buy 10)	0.56
11	Resistor 100K		RMCF0402FT100KCT-ND 	2		0.10 x2
12 	Resistor 1M		RMCF0402JT1M00CT-ND 	1		0.10
13	Resisotor 2.2M		RMCF0402JT2M20CT-ND	1		0.10
14 	Resistor 2.2K		RMCF0402JT2K20CT-ND	1		0.10
15	Resistor 4.7K		RMCF0402JT4K70CT-ND	1		0.10
16	Capacitor 150pF		311-1025-1-ND		1		0.10
17	Op-amp			MCP6001T-I/OTCT-ND 	1		0.25
18	Diode			CUS520H3FCT-ND		1		0.22
19	Microphone		102-1721-ND		1		0.70