POV (Persistence of Vision) – Open-Source Arduino Nano Hardware

  • Rajkumar Sharma
  • 62 Views
  • easy
  • Tested

This is an easy and simple hardware to create a POV display. The hardware consists of a Hall sensor, Arduino Nano, 17 x 5mm LEDS of various colors, etc. The Hall Sensor is connected to analog pin A5 with a pull-up resistor. The circuit works with 3.7V to 5V DC and a 3.7V battery is ideal to use. The user may use as many LEDS as required. This project can also be used to create many applications such as Bar-Graph display, LED light effects. A large 8.5 mm hole is provided to mount the motor coupling. Refer to the diagram for mounting the hall sensor, motor, and magnet.

POV or persistence of vision refers to the optical illusion that occurs when visual perception of an object does not cease for some time after the rays of light proceeding from it have ceased to enter the eye. The illusion has also been described as “retinal persistence”, “persistence of impressions”, simply “persistence” and other variations.

More Information is available here: http://electronoobs.com/eng_arduino_tut21.php

Arduino Nano Pins

  • Hall Sensor: Analog Pin A5 with Pull Up resistor, Normally High and goes low when magnet is near to the sensor.
  • LED D2 to D18: Arduino Pin A4, A3, A2, A1, A0, D13, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12
  • LED D1 : This LED is optional and not installed, user may assemble this LED if the board is used for other application.

Arduino code is available to test the board. The code makes use of 6 LEDs, refer to the diagram to mount the PCB on the motor shaft, Magnet, and Hall sensor potion.

Credits: Original Author of the Arduino Code is Palak Mehta.

Features

  • Supply 3.7V to 5V DC
  • On Board 17X LEDs – Various Colours
  • On Board Hall Sensor
  • Multiple Mounting Holes for Mounting the battery
  • 5MM Mounting Hole for Motor Shaft
  • PCB Dimensions 194.95  x 29.37 mm

Schematic

Connections

Mounting on motor

Parts List

NOQNTYREFDESCMANUFACTURERSUPPLIERSUPPLIER PART NO
11CN14 PIN MALE HEADER PITCH 2.54MMWURTHDIGIKEY732-5317-ND
23D1,C1,R21DNP
31C247uF/25VNICHICONDIGIKEY493-15345-3-ND
41C31uF/10V SMD SIZE 0805 MURATA/YAGEODIGIKEY
52D2,D3LED-ORANGE 5MM THTWURTHDIGIKEY732-5018-ND
62D4,D5LED-YELLOW 5MM THTBROADCOMDIGIKEY516-3193-2-ND
74D6,D7,D8,D9LED-RED 5MM THTSUN LEDDIGIKEY1497-1031-ND
88D10 to D17LED-GREEN 5MM THTCREEDIGIKEYC503B-GCN-CY0C0791-ND
91D18LED-BLUE 5MM THTTTDIGIKEY365-1180-ND
102R1,R200E SMD SIZE 0805MURATA/YAGEODIGIKEY
1116R2 TO R17330E 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
121R18100E 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
131R1910E 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
141R2210K 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
151U1ARDUINO NANOARDUINODIGIKEY1050-1001-ND
161U2A1102LUA-T OR A3144ALLEGRODIGIKEY620-1003-ND

Gerber View

Photos

Video

A1102 Datasheet

A110x-Datasheet

PCB

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments

RELATED PROJECTS

X
Win a BeagleBone Black