MAXREFDES82

MAXREFDES82

Technology marches forward, constantly and irrepressibly altering the world of human to devices interfaces. From mobile device touch screens to weigh scales with electrodes for body composition, machines continue to add more capability, and different ways to gather their measurements. Every so often, a truly elegant concept emerges, merging technology, design and simplicity. MAXREFDES82# is one such elegant concept. This reference design is an industrial, smart force sensor. The design measures mass, as well as the center of mass of the object on it. This combination of features and speed means that MAXREFDES82# operates as both a weigh scale and a touch interface with force sensing. Built with a plastic plate, the system ideally meets the needs of industrial human machine interfaces (HMI). The reference design features the MAX11254 24-bit, 6-channel, 64ksps delta-sigma ADC with SPI interface. Four load cells are mounted on a quadrant plane to detect touch forces applied on the flat plastic plate. Based on the forces applied on each individual load cell, the system displays the total force magnitude, and the coordinates of the force center. The force magnitude and coordinates are scanned approximately each 10 milliseconds. The system includes a thin-film-transistor (TFT) liquid crystal display (LCD) module, digitally showing the forces on each individual load cell, and the total force applied on the top plate. The LCD module also graphically displays the force magnitude and the coordinates of the force center. The MAXREFDES82# reference design consumes minimal energy and is powered by a USB port. A PC-side graphical user interface (GUI) program is also included to facilitate the human interface input demonstration and development.

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1

MAX11254ATJ+

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1

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2

USB MICRO-B

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3

MAX17651AZT+

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4

MAX6071AAUT18+

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1

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MAX6071AAUT41+

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1

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6

MAX8574EUT+

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7

STM32F429ZIT6

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TL1015AF160QG

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2

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4

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IS42S16400J-7TL

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14

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10

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7

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3

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5

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37

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103

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110

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133

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44

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137

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70

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76

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97

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112

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143

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127

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65

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59

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81

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118

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114

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72

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30

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6

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40

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28

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18

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19

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106

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22

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9

PIN Left

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130

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61

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36

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141

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43

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15

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25

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31

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EVQ-P7K01P

OPEN

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MAX11254ATJ+

Rectangle

Quantity: 1

USB MICRO-B

Rectangle

Quantity: 1

MAX17651AZT+

Rectangle

Quantity: 1

MAX6071AAUT18+

Rectangle

Quantity: 1

MAX6071AAUT41+

Rectangle

Quantity: 1

MAX8574EUT+

Rectangle

Quantity: 1

STM32F429ZIT6

Rectangle

Quantity: 1

TL1015AF160QG

Rectangle

Quantity: 1

2

Rectangle

Quantity: 1

4

Rectangle

Quantity: 1

IS42S16400J-7TL

Rectangle

Quantity: 1

14

PIN Bottom

Quantity: 3

10

INPUT PIN

Quantity: 3

24

PIN Right

Quantity: 3

20

INPUT PIN

Quantity: 3

29

PIN Top

Quantity: 3

7

PIN Left

Quantity: 3

3

PIN Right

Quantity: 6

5

PIN Left

Quantity: 3

37

PIN Left

Quantity: 3

103

INPUT PIN

Quantity: 3

110

INPUT PIN

Quantity: 3

133

INPUT PIN

Quantity: 3

44

INPUT PIN

Quantity: 3

137

INPUT PIN

Quantity: 3

70

INPUT PIN

Quantity: 3

76

INPUT PIN

Quantity: 3

97

INPUT PIN

Quantity: 3

112

INPUT PIN

Quantity: 3

143

PIN Left

Quantity: 3

127

INPUT PIN

Quantity: 3

93

INPUT PIN

Quantity: 3

89

INPUT PIN

Quantity: 3

56

INPUT PIN

Quantity: 3

50

INPUT PIN

Quantity: 3

52

INPUT PIN

Quantity: 3

38

INPUT PIN

Quantity: 3

65

INPUT PIN

Quantity: 3

59

INPUT PIN

Quantity: 3

81

INPUT PIN

Quantity: 3

77

INPUT PIN

Quantity: 3

118

INPUT PIN

Quantity: 3

114

INPUT PIN

Quantity: 3

121

INPUT PIN

Quantity: 3

72

INPUT PIN

Quantity: 3

30

INPUT PIN

Quantity: 3

48

INPUT PIN

Quantity: 3

6

PIN Right

Quantity: 3

40

INPUT PIN

Quantity: 3

32

INPUT PIN

Quantity: 3

28

INPUT PIN

Quantity: 3

18

INPUT PIN

Quantity: 3

19

PIN Bottom

Quantity: 3

106

INPUT PIN

Quantity: 3

22

INPUT PIN

Quantity: 3

9

PIN Left

Quantity: 3

130

PIN Bottom

Quantity: 3

61

PIN Bottom

Quantity: 3

36

INPUT PIN

Quantity: 3

141

INPUT PIN

Quantity: 3

43

INPUT PIN

Quantity: 3

15

INPUT PIN

Quantity: 3

25

INPUT PIN

Quantity: 3

31

INPUT PIN

Quantity: 3

EVQ-P7K01P

OPEN

Quantity: 1

关于此原理图

创建人

Curtis Johnson

最近更新

2024-02-15 20:12

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