Created December 31, 2019 © GPL3+

Page Flipper

A robot that flips pages in order to assist people with disabilities, physical impairments, or cooking, building, or making music.

IntermediateFull instructions provided3 hours25

Things used in this project

Hardware components

LEGO Mindstorms EV3 Programming Brick / Kit

Amazon Alexa Echo Show (2nd Gen)

Software apps and online services

Microsoft Visual Studio 2015

LEGO LeoCAD

Story

Reading books still stands as one of the most antiquated methods to gain information. However, as we read, we are often occupied with other tasks: cooking, building, or making music, to name a few, which can make our hands busy. Additionally, people who are paralyzed, have lost their arms, or require help to turn the page in a book may need some assistance in turning the pages in their books. The Page Flipper helps reading become an easier task for many people by using voice commands to turn the pages. The page flipper uses an EV3, a tire spinning inward on an EV3 motor to create a gap, and an arm on a motor to flip the page to the other side. These actions are instigated by voice command through Amazon Alexa.

The page flipper uses an invocation on the Alexa to open the application called “pageflipper”. Then a command of “move forward” is given, which tells the EV3 to turn the page. The EV3 turns the wheel on the edge of the right page toward the middle, which creates a gap between the page that is being turned and the next page. Next, an arm swings in and pushes the page to the other side, and this can then be repeated.

Table of Contents for Attachments

Page Flipper Project.docx

Project document with Introduction and Description

PageFlipper.mp4

Video of prototype

PageFlipper.ldr

CAD build of the page flipper Link to software - https://www.leocad.org/download.html 3d studio Version (Pageflipper.3ds)

Pageflipper.zip

Working gadget source code files to deploy in ev3 To deploy: run python3 pageflipper.py in a SSH Terminal

Alexa_skills.json file

Single Node JS Lambda file for Alexa deployment

Schematics

Code

{
    "interactionModel": {
        "languageModel": {
            "invocationName": "page flipper",
            "intents": [
                {
                    "name": "AMAZON.CancelIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.HelpIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.StopIntent",
                    "samples": []
                },
                {
                    "name": "AMAZON.NavigateHomeIntent",
                    "samples": []
                },
                {
                    "name": "MoveIntent",
                    "slots": [
                        {
                            "name": "Direction",
                            "type": "DirectionType"
                        },
                        {
                            "name": "Duration",
                            "type": "AMAZON.NUMBER"
                        }
                    ],
                    "samples": [
                        "{Direction} now",
                        "{Direction} {Duration} seconds",
                        "move {Direction} for {Duration} seconds"
                    ]
                },
                {
                    "name": "SetSpeedIntent",
                    "slots": [
                        {
                            "name": "Speed",
                            "type": "AMAZON.NUMBER"
                        }
                    ],
                    "samples": [
                        "set speed {Speed} percent",
                        "set {Speed} percent speed",
                        "set speed to {Speed} percent"
                    ]
                },
                {
                    "name": "SetCommandIntent",
                    "slots": [
                        {
                            "name": "Command",
                            "type": "CommandType"
                        }
                    ],
                    "samples": [
                        "activate {Command} mode",
                        "move in a {Command}",
                        "fire {Command}",
                        "activate {Command}"
                    ]
                }
            ],
            "types": [
                {
                    "name": "DirectionType",
                    "values": [
                        {
                            "name": {
                                "value": "brake"
                            }
                        },
                        {
                            "name": {
                                "value": "go backward"
                            }
                        },
                        {
                            "name": {
                                "value": "go forward"
                            }
                        },
                        {
                            "name": {
                                "value": "go right"
                            }
                        },
                        {
                            "name": {
                                "value": "go left"
                            }
                        },
                        {
                            "name": {
                                "value": "right"
                            }
                        },
                        {
                            "name": {
                                "value": "left"
                            }
                        },
                        {
                            "name": {
                                "value": "backwards"
                            }
                        },
                        {
                            "name": {
                                "value": "backward"
                            }
                        },
                        {
                            "name": {
                                "value": "forwards"
                            }
                        },
                        {
                            "name": {
                                "value": "forward"
                            }
                        }
                    ]
                },
                {
                    "name": "CommandType",
                    "values": [
                        {
                            "name": {
                                "value": "circle"
                            }
                        },
                        {
                            "name": {
                                "value": "square"
                            }
                        },
                        {
                            "name": {
                                "value": "patrol"
                            }
                        },
                        {
                            "name": {
                                "value": "cannon"
                            }
                        },
                        {
                            "name": {
                                "value": "all shot"
                            }
                        },
                        {
                            "name": {
                                "value": "one shot"
                            }
                        }
                    ]
                }
            ]
        }
    }
}

Credits

Mahir Parmar

1 project • 1 follower

Page Flipper

Things used in this project

Hardware components

Software apps and online services

Story

Custom parts and enclosures

pageflipper.ldr

pageflipper.MOV

Schematics

pageflipper.mp4

Code

pageflipper.zip

Alexa_skills.json

Credits

Mahir Parmar

Comments

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Page Flipper

Page Flipper

Things used in this project

Hardware components

Software apps and online services

Story

Custom parts and enclosures

pageflipper.ldr

pageflipper.MOV

Schematics

pageflipper.mp4

Code

pageflipper.zip

Alexa_skills.json

Credits

Mahir Parmar

Comments

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