Matrix Orbital LCD2041 Legacy User Manual
Page 11
Pin 4
Ground
Pin 3
Rx
Pin 2
Tx
Pin 1
Vdc
Figure 11: Power Connector
2.2.3 TTL communications
The display can be talked to at TTL (logic 0V to +5V) levels. The following three jumps will need to be
modified as shown in figure below. This will allow TTL communications through the 4-pin SIP header or
the DB9 connector.
Figure 12: TTL Communications
2.2.4 Configuring RS-232 and I
2
C
RS-232 baud rate and I
2
C address are configured by means of jumpers.
Matrix Orbital
LCD2041
8
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