Mouse GlovesAkhil S MenonAkhilnath E RR Sarath ChandranNimisha K KSreekutty K TM

AIN

PRO

JECT

contents

1introduction

5algorithm

9references

6flowchart

2block diagram

3functionalblocks

4circuit diagram

8future expansion

7pros & cons

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

1› HID

› Mouse cursor movement

› Left, right and double click

› Zoom in and out

› Motion sensing gaming

› Presentations

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

2› Main module

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

2› Bluetooth-PC side

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

2› Power supply

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

3› PIC

› Flex sensor

› MEMS - Accelerometer

› Bluetooth transmitter and receiver

› USART

› Level converter

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› Power supply

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› PIC

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› MEMS - Accelerometer

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› Flex sensor

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› Bluetooth module

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

4› Level converter

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

5 › { Algorithm for ADC }

Step1: Start

Step2: Load ADCON0 with 80H and ADCON1 with 81H for selecting RA0(89H for selecting RA1) as analog input port

Step 3: Set A/D conversion status bit, ADGO =1 to start conversion.

Step 4: Check if ADGO=0( i.e. A/D Conversion complete), if yes transfer higher 2 bits in ADRESH to a variable and shift it to left 8 times, then OR the contents with lower 8 bits in ADRESL. If no, go to step 4.

Step 5: Compare the digital value with a threshold, and transmit it via UART.

Step 6: Stop The same procedure is done for the data input at analog channel RA1.

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

5 › { Algorithm for asynchronous transmission } Step 1: StartStep 2: Configure PORT C as output portStep 3: Select asynchronous transmission by clearing SYNC bit.Step 4: Set the transmit enable bit (TXEN) to enable data transmission

Step 5: Set BRG bit for high baud rate selection

Step 6: Initialize SPBRG= 128 for the baud rate 115200 using the equation

Baud rate= fosc/(16*(x+1))

Step 7: Enable serial port by setting Serial port enable bit, SPEN

Step 8: Move the character to be sent to the transmit register, TXREG

Step 9: Check if transmit shift register status bit, TRMT =1. If yes, transmission completed. If no, go to step 9

Step 10: Stop

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

5 › { Algorithm for Gloves }

Step1:Do the basic Initialization –ADC,USART(115200 bps), PULL UP keys etc

Step2:Take ADC readings through channel 0 and 1 continuously when PULL UP key(RB2) is pressed

Step3: If channel0 (X - axis) value is less than current ADC value send 'L' to USART. If greater then send 'R'

Step4:If channel1 (Y - axis) value is less than current ADC value, send 'D' to USART. If greater then send 'U' to USART

Step5:If PULL UP key RB1 is pressed send '#' to USART(for right click command)

Step6:If interrupt key RB0 is pressed once send '$' to USART(for single click command) And if RB0 is pressed twice send “$ $” to USART(for double click command)

Step7:Goto step 2

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

5 › { Algorithm for configuring Bluetooth module } Step1:Configure USART to 115200bps

Step2:Transmit '+''+''+'

Step3:transmit "AT" followed by <CR> and check whether "OK" is received

Step4:transmit AT+BTLNM=”HID-BLUETOOTH” followed by <CR> wait for "ok"

Step5:Transmit AT+BTURT=<Baud>, <Data Bits>, <Parity>, <Stop Bits>, <Flow Control> followed by <CR>eg : AT+BTURT=115200,8,0,1,0

Step6:Transmit AT+BTSRV=1 followed by <CR>

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

5 › { Algorithm for Mouse Action } Step 1: Start

Step 2: Declare library functions (from API Viewer and MSDN) for configuring mouse actions

Step 3: Set the properties of MS Comm1 and MSComm2

Step 4: Create a form such that when the port is open display COM1-COM8 for COMM PORT selection

Step 5: Get the current cursor position and compare the data in inbuff with L, R, U, D and set the cursor point to that direction by 2 pixels. If the data is $, # or * perform left click, right click or double click. Continue checking the data received at COMM port.

Step 6: Stop

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

6 Initialize ADC

Initialize USART & set baud rate = 115200

Set I/P ports RA0 (L & R) And RA1 (U & D)

Set RC6 as O/P port

Store 10 bit ADC O/P of RA0 in integer X & RA1 in integer Y

If

Y > 550Transmit ‘U’

Transmit ‘R’

If

Y< 450

If

X <400Transmit ‘D’ Transmit ‘L’

If

X> 600Yes

Yes

Yes

No No

Start

Yes

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

PROS› prevent carpal tunnel

syndrome and other repetitive stress injuries

› Video game controller

› Perfect for giving presentations

› Intuitive

CONS› cumbersome

› Movement is not that smooth

› Need to wear gloves

7

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

8› Key Board

› Voice control through MAT LAB

Introduction

Block Diagram

Functional Blocks

Circuit Diagram

Algorithm

Flowchart

Pros & Cons

Future Expansion

References

9› Hn.B.Peatman,Design with PIC microcontrollers, Pearson Education pt. Ltd, Second Edition

› Frank Vahid Tonny Givargis,Embedded system design-a unified hardware/software introduction

› Brain in chip Technologies ,Embedded system design using PIC controller

› www.microchip.com

› www.alldatasheets.com

› www.semiconductorsphilips.com/sales.

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