No	Part		DigiKey ref.		Qty	Price
1	Batt holder     BU2032SM-HD-GCT-ND      1       0.82
2	Microcontroller	R5F1036AASP#V0-ND       2       1.74 x2
3	Capacitor 4.7uF	EMK107ABJ475KA-T	2	0.26 x2
4	Ferrite bead	490-1024-1-ND		2	0.10 x2
5	DC-DC converter	296-26982-1-ND 		1	4.15
6	Inductor 100uH	445-2015-1-ND		1	0.99
7	Diode B240A	B240A-FDICT-ND		2	0.54 x2
8	Capacitor 4.7uF	587-2994-1-ND 		1	0.28
9	Capacitor 68uF	478-8232-1-ND 		1	0.96
10	Header		S9010E-04-ND            3       1.27 x2
11	Button		401-1829-ND 		1	0.72
12	Power jack	CP-036AHPJCT-ND 	1	1.96
13	Resistor 5.1K	RMCF0402FT5K10		1	0.04
14	Resistor 8.2K	RMCF0402FT8K20		1	0.04
15	Copper clad	PC44-ND 		1	5.08
16	Enclosure	HM1140-ND		1	2.70
17	Enclosure	HM1063-ND		1	2.70
18	H-bridge	ZXMHC3F381N8DICT-ND	1	2.17
19	FDC6305         FDC6305NCT-ND   	1	0.49
20	volt. translator 296-12163-1-ND		1	0.45
21	LED		516-1419-1-ND 		1	0.49


Radio modules:
DigiKey			1173-1031-ND 		2	19.50 x2
or
Mouser			620-A2500R24A00GM	2	14.45 x2