NN  Part		Mouser reference	Qty	Price	
0.  Knob		450-2023-GRX		1	0.99
1.  Rotary encoder	652-PEC11R-4215K-S24	1	1.63
2.  Bar graph display	604-DC20/20YWA		1	3.38
3.  LCD display		763-C0216CIZFSWFBW3V	1      10.25
4.  PSOC		727-CY8C4245AXI-483	1	3.41
5.  Speaker		490-CVS-1508		1	3.71
6.  Button		611-KSI0V011LFT		1	0.79
7.  Connector		855-M52-5050545		1	1,10
8.  LED			604-WP59EGC		1	0.33
9.  Phone jack		490-SJ-3524-SMT-TR	1	1.24
10. USB connector	656-DX4R005HJ5R2000	1	0.74
11. Copper clad		590-503			1	4.65
12. MOSFET		512-FDC6305N 		1	0.43
13. MOSFET		942-IRLML6401TRPBF	1	0.35
14. LM4990		926-LM4990MM/NOPB	1	1.75
15. TPS61221		595-TPS61221DCKR	1	1.12
16. Diode		757-CUS520H3F		2	0.21 x2
17. Voltage reg		579-MCP1703T-3302ECB	1	0.60
18. Battery holder	12BHC421A-GR		1	1.09
19  Inductor		81-LQH3NPN4R7NG0L 	1	0.42