Low cost FPV Tiny Whoop with SilverWare ACRO mode enabled

               Instruction "Low cost FPV Tiny Whoop with SilverWare ACRO mode enabled" will describe how to make low-cost DIY FPV mini quadcopter by using cheap spare parts of brand name drones in the market to re-fabricate to be DIY performance mini quadcopter.The result was very surprising,it's making the big brand expensive drone to be shamed.It flies very stable even in the outdoor windy air.The coreless motors 7x16 are more powerful than 6x14 of regular Tiny whoop.Easy and durable for pilots from beginners who need FPV training to Pros who need Acro mode flying.

              Difficulty : Easy

              Cost : 40-60 USD. (excluded Transmitter,FPV gogle)

Materials

1. Bwhoop B-03 or Eachine E011 shell body.

2. Bwhoop B-03 or Eachine E011 propellers set.

3. Bwhoop B-03 or Eachine E011 716 coreless motors set.

4. Bwhoop B-03 Pro board or Eachine 010c with ultitude hold.

5. 1s Lipo Battery.

6. FPV camera.

7.FPV goggle.

8. ST-link V.2

9. Bwhoop B-03 Pro complete set.(Optional for non-RC guys)

10. Mutiprotocol Tx module.(For Frsky,Flysky,Turnigy,other PPM Tx)

Tools

1. Soldering gun

2. Soldering wire

3. Soldering paste

4. Plier

5. Hot glue gun

6.Hot glue rods

Making process
1.Flashing controller board with Silverware.
You can follow this web link(https://www.rcgroups.com/forums/showthread.php?2876797-Boldclash-bwhoop-B-03-opensource-firmware).They describe how to do in deeply detail, see this video clip for real flashing.

2.Assemblying parts.
2.1. Assemble bodyshell,motors,propellers together. 
Be carefull to install corrective motors at the right positions as showing figure.

2.2. Installing controller board and connecting with 4 motors.
2.3. Fixing FPV camera above controller board with shock absorber tape and rubber band.
Connect power cable directly to available port on controller board.

3.Multiprotocol Tx module modification and binding.(For Frsky/Flysky/Turnigy Tx)
3.1 The cheap commercial Multiprotocol Tx  module's operating range has just +/- 5m.only.This range is too short to fly in Acro mode.To extend range,it can be modified by connecting hard fixed attenna of Multiprotocol module with 2.4G RP-SMA 2dB antenna by soldering two wires at antenna +/- poles.The range would be extended to +/- 10m.



3.2 Using unused back module case for containing Tx module.
3.3 See video clip which illustrates how to set ACRO/LEVEL mode.

Flight test