Bluetooth Action Cam Slider

### Update 1:

Updaten Software files in MnM_ActionCamSlider_Software.zip

Changelog App:
1.1

• Added App Icon
• changed max time in [h] from 60 to 24
• setting time in [h] now with minutes

• Angle now ranges from -180 to + 180° Changelog Scetch:

• More Comments

• Changed Steps/rev to DRV8834 Added Wiring Diagram

  ########################

  This is my GoPro compatible Action Cam Slider Project.
  It's main goal is to make an easy, cheap slider for timelapses.
  This slider can take up to ~10^38 sec for the distance... should be slow enough xD
  Fastest Speed is 500 Steps/Sec => 1 Revolution in 4 Sec => 20mm/sec (at 26mm wheels)

  ######### HARDWARE #########

  There are two Versions:

  3D-Printed [PV]: Just print all the parts.
  Non-Printed [NV]: Print the ActionCamSlider_Plans.pdf in 100% scale, glue it to a sheat of your favourite material and cut along the Lines

  For all Versions;
  2x M8 Screws (25mm for PV, 30-35mm for NV)
  6-8x M3x10mm (8 if you do not glue the TopMotor Mount to the Base)
  1x M5x15mm
  1x 10mm tension spring or a rubber band
  2x 608zz (Skateboard) Ball Bearing

  For NV:
  2-X M8 Nuts (depends on wanted hight and material)
  2x 20mm Spacer (with M3 Thread)

  Electronics (Linked parts on eBay [affiliated]):
  1x Arduino Nano (or compatible)
  https://goo.gl/6Ux23S
  1x HC-05 Bluetooth Module
  https://goo.gl/X27cM0
  2x 28BYJ-48 Stepper Motors
  https://goo.gl/TDYjsP
  2x Stepper motor drivers. Best would be to use DRV8824 or DRV8834 https://goo.gl/Bni40L
  Both can drive low voltage Stepper motors but they are relativly expancive (~10$).
  That way you could run everything from a power bank.
  If you have some A4988 laying around you can also use these, but than you have to supply >8V and step it down to 5V for the arduino and Bluetooth with this converter https://goo.gl/sWpdlK for example.

  ######### SOFTWARE #########
  (all in MnM_ActionCamSlider_Software.zip)

  Arduino:
  Custem settings (e.g. Wheel Diameter) are set in the Top of the Scetch
  Upload the Arduino Scetch to the Arduino

  Smartphone (App Android only, workaround for iOS):
  The App was made using the free "MIT App Inventer 2"
  You can just download the APK and install it (allow Unknown sources under Settings>Security)
  If you want to have a look at the Code or don't trust me (;P) create an App Inventor account and import the .aia-file.
  Pair the HC-05 and your Smartphone before connecting the App to the slider or it will not show up.

  iOS:
  You can use a Bluetooth Terminal app like BluTerm to control the Slider.
  Just send the commands explaned in the following protocol.

  ######### PROTOCOL #########
  The protocol is pretty basic but easy to extend. The commands ALWAYS have the pattern: #;#;#;#.
  The first digit (at the moment)can be 0 (=Set) or 1 (=Move)
  For now you can only set the wheel diameter (diameter on that it is running). Default is 26mm

  To set 30mm wheel diameter: 0;30;0;0. (Canges are NOT stored in EEPROM at the moment!)

  Moving: 1;TimeForTheMove;Distance;TiltCamAngle
  Example: 1;20;100;30. The move will take 20 sec, along 100mm (left to right) and tilt the cam 30°
  You can use negative Values for Way and Tilt to move into the other direction
  If you set Time to 0 it will move as fast as possible.

  ######### MORE INFO #########
  For more infos see the Project-Videos
  Part1: https://www.youtube.com/watch?v=jT-A2rkLJT4
  Part2: https://youtu.be/9\_ftOecn1go

  Musik used in Video:
  Tours - Enthusiast http://freemusicarchive.org/music/Tours/Enthusiast/Tours\_-\_Enthusiast