The turntable with remote control serves to be able to record or film any event on smartphone at the right angle. In fact, this is a small slider for photo/video shooting.
For its assembly you need the following
Tools and materials: -Arduino UNO; -30-row breadboard;
-Stepping motor 5 V;
-Driver stepper motor; -15 short jumpers (different colors); – Infrared sensor + remote control; -4-pin connector;
-Metal shaft 3 mm x 3 mm x 20 mm; -Battery 9 V; -Spring tension 43 mm ; -Two keys with an internal hexagon – 2.4 mm in diameter and 1.8 mm in diameter;
-4 hexagon head screws M3x45 mm;
-2 M3x12.5mm Hex Head Screws;
-5 M3x16mm Hex Head Screws;
-5 M3x2.5mm Hex Nuts;
Step One: 3D Printing
All Stand Parts for the phone were made using 3D printing, and all of them are designed in such a way that the printing process is very simple and requires very few supports.
STL files for printing can be downloaded below.
ArdBox.stlBracket.stlDevice Base.stlMiddle Layer Casing.stlRack.stlRotating Centerpiece.stlTop Layer Casing.stlVice Bracket.stlVice.stl Step Two: Arduino and Breadboard
After the parts are printed, the wizard installs the Arduino inside the case. There are latches inside the case, and the board will be securely held by them.
Next, you need to set the jumpers on the Arduino. Install the red jumper to the 5V port, blue to the minus. Then we install in order: 8, 9, 10, 11, 2 Arduino – yellow, white, red, black, green contacts.
Once the pins are connected to the Arduino module, place the 30-row breadboard right above the Arduino. We connect the red 5V pin to the positive (vertical) bus of the breadboard, and the blue pin to the minus.
Then we connect the green, yellow, white, red and black jumpers to the breadboard pins with the correct spacing between each pin for correct wiring.
Finally, use jumpers to connect the vertical and horizontal positive busbars. We also connect minus tires.
Now, using 4 more jumpers (yellow, white, red and black), connect them to the same horizontal bus on the breadboard so that the colors match the previously connected jumpers. We connect the connector to the jumpers (also by color).
Connect the green jumper to one bus from the previously installed green jumper.
Next, we need four more jumpers. The artist used blue, yellow, white and purple jumpers. Sets them as in the photo.
The last thing to do in this step is to set 5V jumpers to white and yellow jumpers, minus to blue and purple.
< a href = "https://usamodelkina.ru/uploads/posts/2021-06/1623220109_1-6.jpg" rel = "prettyPhoto"> Step third: stepper motor
The next step is to install the stepper motor. The stepper motor fits into a slot in the printed disc-shaped piece. Then it is fixed with two screws. Fastens the stepper motor driver board. Connects the wires from the stepper motor to the stepper motor board as shown in the photo.
Then he pulls the wires from the breadboard into the hole in the disk.
Next, you need to connect everything.
The 4-pin connector is connected to the driver board. Also, yellow and brown wires are connected to the board. Yellow to “+”, brown to “-“.
Step four: installing the IR sensor
Now you need to install the red part and the IR sensor is also attached to it. There is a rectangular slot on the flat top of the part, specifically for the sensor.
The sensor is installed “facing” outward. With this arrangement, the left contact is intended for a signal, the middle contact is connected to the minus, and the right contact to the 5V power supply.
After connecting the sensor, install the red part on top of the blue one and screw it to the case with screws.
< a href = "https://usamodelkina.ru/uploads/posts/2021-06/1623220093_1-13.jpg" rel = "prettyPhoto"> Step five: turntable
At this step, both the rotating central element and the base of the device (both shown in orange) must be 3D printed. These two parts are connected and fixed with screws.
Then you need to install the bracket and stand. A metal shaft is additionally installed in the rack. Then the stand is fixed with a screw.
At this point, the clamp and the clamp bracket are the last two pieces to be 3D printed.
To fasten the two pieces together, use the 2 remaining M3x16mm hex screws and the 2 remaining M3x2.5mm hex nuts. < br> This part is then inserted into the hollow rails of the rack. Finally, you need to put on the spring.
< a href = "https://usamodelkina.ru/uploads/posts/2021-06/1623220080_1-20.jpg" rel = "prettyPhoto"> Step sixth: final assembly
Now you need to install the turntable on the stepper motor shaft. Connect the connector to the battery. Connect the other end of the connector to the Arduino.
< a href = "https://usamodelkina.ru/uploads/posts/2021-06/1623220100_1-25.jpg" rel = "prettyPhoto"> Step seventh: code
The attached code is quite simple and straightforward. The Functions.ino file contains information about how the stepper motor moves in steps.
Another arduino file contains all the code needed to control the stepper motor. First, you need to download the stepper motor header file and the IR Remote header file (version 3.1.0).
The code includes a specific list of almost all possible IR signals that the remote control can send to the IR sensor.
Functions.inoRemoteControlledPhoneStand.ino Step Eight: schematic diagram
Simple device diagram.
IR sensor (located to the right of the diagram) is connected to pin 2, 5V and ground of the Arduino. This sensor receives the signal and sends it to the Arduino, where it will be decoded.
The stepper motor is connected to the stepper motor board through a four-pin connector that drives the coils in the stepper motor. The stepper motor board also connects to the Arduino board via 5V and minus pins – in addition to connecting to the Arduino board via pins 8, 9, 10, and 11.
Step Eight: Device Overview
In this step, the wizard talks about the functionality of the device. For clarity, gives a small video.
The phone stand has been equipped with a number of features that can be controlled with an IR remote control.
Slow rotation clockwise or counterclockwise (Next or Previous buttons)
Full 360 rotation degrees clockwise or counterclockwise (Plus or Minus buttons)
Surveilance mode in which it rotates through a specific angle to capture a specific field of view (EQUALIZE button) – for both short and wide field of view (100 + or 200+)
An iteration mode in which it allows continuous 360-degree rotation depending on how many times it is requested (from 1 to 9 depending on which numeric button is pressed on the remote control).