Figure 4: 4X4 Keypad
1.3
Features
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20 column by 4 line alphanumeric liquid crystal display
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USB communication protocol
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Six, 5V -20mA, general purpose outputs for a variety of applications
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Lightning fast communication speeds, up to 115.2 kbps
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Extended temperature option available for extreme environments of -20C to 70C
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Built in font with provision for up to 8 user defined characters
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Standard One-Wire bus that is capable of communicating with up to 32 devices
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Fully buffered so that no delays in transmission are ever necessary
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Ability to add a customized splash / startup screen
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Software controlled contrast and brightness with configurable time-out setting up to 90 minutes
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Use of up to a 25 key keypad with a 10 key buffer
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Horizontal or vertical bar graphs
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Fits Matrix Orbital’s mountings without any modifications
Matrix Orbital
LK204-25-USB
3
