Bluetooth Action Cam Slider

thingiverse

######### 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 Modulehttps://goo.gl/X27cM0 2x 28BYJ-48 Stepper Motorshttps://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