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Old 12-04-2011
IPM IPM is offline
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a 1117 voltage regulator could supply the 5v
LM1117 - 800mA Low-Dropout Linear Regulator

looks like best value with features (ebay ~$14) for bluetooth
Smart RS232 Bluetooth Module With DB9 Interface - emartee.com

useful datasheet: http://www.emartee.com/Attachment.php?name=41889.pdf
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