Matrix-orbital LCD2041 User Manual download pdf (Page 12)

Pin 2 Tx \ SDA (I

C data)

3 Rx \ SCL (I

C clock)

Pin 5 GND

9 PWR (Must solder Power Through DB-

9 Jumper. See table 1 on page 10 for

power requirements.)

Figure 13: RS-232 Pin out

2.1.1 Power Through DB-9 Jumper

In order to provide power through pin 9 of the DB-9 Connector you must place a solder jumper on the

Power through DB-9 Jumper pictured in ﬁgure 14 below. The LCD2041 allows all voltage models to use the

power through DB-9 option, see table 1 on page 10 for display module voltage requirements.

Matrix Orbital LCD2041 8

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 54 55

Technical Manual 1
Revision: 2.1 1
Contents 2
1 Getting Started 5
1.2 Accessories 6
1.3 Features 7
Figure 8: Aluminum Mountings 8
Figure 9: Mounting Kits 8
Matrix Orbital LCD2041 4 8
1.4 Connecting to a PC 9
1.5 Installing the Software 10
2 Hardware Information 11
Matrix Orbital LCD2041 9 13
2.2 Power/Data Connector 14
2.3 Protocol Select Jumpers 15
Matrix Orbital LCD2041 12 16
2.5 Manual Override 17
2.4 General Purpose Outputs 17
Matrix Orbital LCD2041 14 18
3 Troubleshooting 19
4 Communications 20
C Transaction Example 21
4.1.3 Serial Communication 21
4.2 Changing the I 22
C Slave Address 22
4.3 Changing the Baud Rate 22
CrystalSpeed 23
8×DesiredBaud 23
5.2 Auto Scroll On 25
5.3 Auto Scroll Off 26
5.4 Clear Screen 26
5.6 Set Auto Line Wrap On 27
5.7 Set Auto Line Wrap Off 27
5.8 Set Cursor Position 27
5.9 Go Home 28
5.10 Move Cursor Back 28
5.11 Move Cursor Forward 28
5.12 Underline Cursor On 29
5.13 Underline Cursor Off 29
5.14 Blinking Block Cursor On 29
6 Special Characters 30
6.3 Saving Custom Characters 31
6.4 Loading Custom Characters 32
6.6 Initialize Medium Number 33
6.7 Place Medium Numbers 33
6.8 Initialize Large Numbers 34
6.9 Place Large Number 34
7 General Purpose Output 36
7.3 General Purpose Output On 37
7.4 Set Startup GPO state 37
8 Display Functions 38
8.4 Set Brightness 39
8.5 Set and Save Brightness 39
8.6 Set Contrast 39
8.7 Set and Save Contrast 40
9 Data Security 41
9.3 Data Lock 42
10 Miscellaneous 43
10.2 Read Version Number 44
10.3 Read Module Type 44
11 Command Summary 46
11.3 Special Characters 47
11.4 General Purpose Output 48
11.5 Display Functions 48
11.6 Data Security 49
11.7 Miscellaneous 49
11.8 Command By Number 49
12 Appendix 51
Matrix Orbital LCD2041 48 52
12.3 Physical Layout 53
12.4 Ordering Information 54
12.5 Deﬁnitions 54
12.7 Revision History 55

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