Owner's manual

Figure 4: 4X4 Keypad

1.3 Features

• 20 column by 4 line alphanumeric liquid crystal display

• USB communication protocol

• Six, 5V -20mA, general purpose outputs for a variety of applications

• Lightning fast communication speeds, up to 115.2 kbps

• Extended temperature option available for extreme environments of -20C to 70C

• Built in font with provision for up to 8 user deﬁned characters

• Standard One-Wire bus that is capable of communicating with up to 32 devices

• Fully buffered so that no delays in transmission are ever necessary

• Ability to add a customized splash / startup screen

• Software controlled contrast and brightness with conﬁgurable time-out setting up to 90 minutes

• Use of up to a 25 key keypad with a 10 key buffer

• Horizontal or vertical bar graphs

• Fits Matrix Orbital’s mountings without any modiﬁcations

Matrix Orbital LK204-25-USB 3