Will this circuit work for me?

Using Arduino General Electronics
1

Hy everybody!

I'm not sure if I missed something important from the datasheets or am I missing a voltage regulator, a capacitor or something, so I just want to check this whole think with you. Every value I have found is maybe not correct, so check those too pls:
Samsung Galaxy Ace battery:
3.7v (it starts from 4.2v when fully-charged)
1350 mAh
I want to use this, and I think everything can work on 3.3v, except the JY-MCU bluetooth module. So the battery can be used for JY-MCU until the voltage decrease to 3.6v, after that I need to charge that. For the other devices I would use LD33V voltage regulator, a 10uF electrolit and a 10nF cheramic capacitor.

The other devices I mentioned:
They would get 3.3v via LD33v:
arduino lilypad:
40 mA
http://arduino.cc/en/Main/arduinoBoardLilyPad
wtv020-sd-16p:
3uA
http://letsmakerobots.com/files/WTV020_manual_V1.3.pdf
st7735r:
50 mA

and one of these IMUs:
gy-88:
it contains:
-MPU-6050
4mA
-HMC5883L
100 uA
-BMP085
5uA

the other imu option would be:
minIMU-9 v3:
6 mA
it contains:
-L3GD20H
5 mA
-LSM303D
300 uA

This needs minimum 3.6v, it would be powered directly from the battery:
jy-mcu v1.04:
3.6v needs for input, the other lines can be 3.3v
30 mA
http://www.aliexpress.com/store/product/JY-MCU-v1-04-Master-slave-machine-bluetooth-serial-through-the-module-wireless-serial-ports-HC/511499_602197485.html

So will these be correct in a circuit? Won't I kill anything with this?

2

I assume your bluetooth module has breakout board, you can directly power the hc-0X module with 3.3v power supply. You don't have to use breakout boards VIN pin with 3.3v circuit. And you need put voltage LD33V's VIN pin at least 7 volts. You can connect two batteries in series. Since you did not provide Your voltage regulator's datasheet, we dont know how much output current will be. You should not exceed max. output current that 3.3v regulator has supply.

3

How should I know that if it has breakout board or not? Or what do you mean? I don't know if there is a hc module on that or not.

You don't have to use breakout boards VIN pin with 3.3v circuit.

What do you mean? if a board has only VIN, then I would put 3.3v on that. If a board has 3v3 and VIN, I would use only 3v3 instead.

And you need put voltage LD33V's VIN pin at least 7 volts.

I tried 7805 regulator with 6v, and that worked as well, but that should not be. Can it kill the LD33V if I put 3.7v or 4.2v to that?
Here's the datasheet of that:

4

You have a HC-XX bluetooth module with Breakout board.

This is just breakout:

And this is HC-XX bluetooth module:

For LM1117V33 you need at least 4.3v for input voltage and careful with pinouts. They differs from 78XX series. And fully charged battery gives 4.2v as you say (not enough for LM1117V33, typically you will need 5v), and it will drop down to about 3v if you have protection circuit. If you don't it will be drained down to 0v and its not good with lithium batteries.

Can it kill the LD33V if I put 3.7v or 4.2v to that?

If you apply any voltage to VOUT pin of LM1117v33 it could damage it if you are asking that. Applying voltage up to 15V to VIN pin is normal.