Using Android Phone to control House's Lamp ON/OFF(用Android手機遙控家裡電燈開關)

         My idea is just use one servo to switch the lamp's power button.
 Without Relay ,It just is a plug, It means we don't need to change house's original power circuits.

Using Android cell phone and Arduino + BT to control LED ON/OFF

    This is  a simple example to implement how to use android mobile phone to control LED ON/OFF thru Arduino +BT HC_05.


<Picture 1> This show the circuit design. I used the Arduino Digital Pin D2,D3 as  RX.TX signal.






<Picture2>  Using APP inventor 2 to create android APP .

How to build the Robotic Arm made by 3DP(用3D印表機來製作機械手臂)

     Although I already tried to made all screw hole on this Robotic Arm.but sometimes I got the new ideas and do some modification. so It is better to prepare the  Electrical screw tool,sometimes need to make some screw  holes.and please also prepare the glue for plastic material .



  Download the Robotic_Arm 3DP Components from the website:
  http://www.thingiverse.com/thing:994180

   Well, just reference below pictures to build the Robotic arm.


<picture 1>.It is better to fixed the Robotic Arm_base on the wood platform.or you can fixed it on where you want.

Demo the Drone flight modes include Failsafe RTL Geo Fence modes.

   The flight modes are relative with security.
In my APM setting,when lose RC signal or GPS signal ,the Drone will auto Landing.
and IF the Drone fly over the GEO Fence setting,it will enter RTL mode.
and I set Channel 8 for force RTL mode,too.



1.Geo Fence test

Using Arduino and Joystick to control Robotic Arm

            I created another method to control the Robotic Arm.

    Using Arduino nano & one Joystick with X/Y dimension and click function to control
  the robotic Arm's movements.

  This robotic arm architecture was made by my 3DP.
  You can  download the components from the website:
          http://www.thingiverse.com/thing:994180

Below films demo how to controll it .