I can't find a tool so I'm trying to build it. Short version... I'm attempting to build a device that will plug into various environmental sensors. It will accept the sensors' readings and send the data via Bluetooth to my android device. An app will translate the data for my records. The Bluetooth chip I found has USB pins. VCC or 5VDC, D+, D-, GND. What type of input does the USB need to recieve? I'm planning on powering the device with a 9V batterythrough a voltage regulator down to 5VDC. Any help would be appreciated.
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