Microchip Technology Humidity Sensor PICtail Specifiche Scaricare il pdf (Pagina 75)

handle on the outside of a duct. Depicted below in Figure 25 is an example of

what manual balancing damper looks like.

18"

Figure 25 Manual balancing damper (Reprinting Permission Requested

from Gran-Stratman Industries Inc.)

Figure 26 pictured below shows a volume control damper also known as an

automated zone damper. Notice these differences in operations from these two

dampers.

18"

12"

24"

Figure 26 Volume control damper (Reprinting Permission Requested from

Gran-Stratman Industries Inc.)

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 148 149

Table of Contents 3
Table of Figures 6
Table of Tables 7
1.1 Executive Summary 9
1.2 Motivation 10
1.3 Objective 12
1.3.1 Remote Sensing Unit 12
1.3.2 Main Control Unit 13
1.4.2 Detailed Requirements 14
1.5.1 Division of Labor 16
1.5.2 Coding Breakdown 18
1.6 Block Diagrams 20
1.7 Timelines and Milestones 21
1.8 Budget / Finances 24
Section 2: Research 26
2.1 Research Methods 26
2.2 Main Microcontroller 27
Input / Output Ports: 28
Memory Type: 29
Development tools: 29
Instructions 30
2.2.1 General Description 31
2.2.2 Pins 34
2.2.3 Interfacing 36
2.5 LCD Touch Screen 43
2.6 Wireless Interfacing 47
2.6.2 Wireless Protocols 48
2.6.3 IEEE 802.15.4 – ZigBee 49
2.6.4 Bluetooth 50
2.6.5 IEEE 802.11 – Wi-Fi 51
2.7 Smart Phone Application 53
2.7.1 Remote Access 53
2.7.2 TCP/IP 54
2.7.3 Host-to-Network Layer 54
2.7.4 Internet Layer 55
2.7.5 Transport Layer 55
2.7.6 Application Layer 56
2.7.7 Microchip TCP/IP Stack 56
2.7.8 Implementation 57
2.7.9 Microchip HTTP Server 63
2.7.10 Implementation 63
2.8 MPFS 66
2.9 Mobile Web Site 68
2.10 iPhone App 68
2.12 Power 70
User Interface 70
2.12.2 Remote Sensing Unit 70
2.13 Batteries 71
2.15 Dampers 73
Approx. 4' 74
18" 75
12" 75
24" 75
2.16 Sensors 76
3.5" 77
 82
Wireless Sensor 83
(MRF24WB0MA) 86
Sensor 89
3.3.1 Sensirion SHT21 89
C Protocol 90
3.5 SLCD5 Controller 95
Processor 97
3.5.2 Touch Interface 98
Program 98
Description 99
Command 99
Arguments 99
3.6 Design Summary 102
Main Control Unit 103
Main Control System 105
Secondary 106
Microcontroller 106
4.1.2 Microchip 108
Section 4: Prototype 108
4.1 Vendors 108
4.1.1 Reach Technology Inc 108
4.1.3 Sensirion 109
4.2 Printed Circuit Board 109
4.4 Remote Sensing Unit 116
4.5 Relays 117
4.6 Demonstration 119
Section 5: Testing 121
Daughter Board 123
5.4 Safety Considerations 125
5.5 Equipment 126
5.6 Environment 127
5.7.1 Final Specifications 127
5.7.2 Final Requirements 128
Bibliography 135
*Subject of your message: 140
*Message: 141
Reach Technology Permission: 143
Microchip Permssion: 144
Contact Us 145
Thanks very much 146
727-580-6767 147
Abbreviations and Acronyms 149

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