Bluetooth module @ 3.3 volts

[dhouston]

I agree that a regulator is the best way to go.

If the current isn't too high, the MAX6349 LDO is SOT23-6 and only needs one 1µF cap (available in 805 SMD).

[ardhuru]

If the current isn't too high, the MAX6349 LDO is SOT23-6 and only needs one 1µF cap (available in 805 SMD).

Right Dave, the MAX LDO looks just right, the current doesnt go beyond 20ma. In retorspect, I should have ordered these instead http://www.ebay.com/itm/Serial-Bluet...item3cbd9d88b2 ; 5v ready, and come mounted on a breakout PCB with standard 0.1' pins.

Still might, but then I'll have to endure a 20 day wait till they arrive

[Ioannis]

If you have the a 317 do it your self with 2 resistors or one resistor and a trimmer.

Even cheaper and easier, a serial pass transistor with a bias to control the output.

Ioannis

[amgen]

Think the BT module is about 100 MA in Xmit, also, need the SPP (serial port profile mode) on PC which just adds serial ports in Devices-ports (sort of virtual serial port). Sometimes comes with BT drivers.
Don

[Demon]

Moved from Schematics.

Robert