Matrix Orbital LCD2041 Legacy - Manual (Page 12)

Figure 13: RS-232 Jumpers
The module is supplied with jumpers J1 and J2 installed, which gives an RS-232 baud rate of 19200 and
an I 2 C address of 0x5C.
• RS-232 port: J0, J1, J2 - control baud rate. RS-232 format is 8N1, 8 bits, no parity, one stop bit
• I
2 C port: J0, J1, J2, J3 - sets slave peripheral address
Table 4: Serial Baud Rates
Baud Rate Slave Address J3 J2 J1 J0
1200 50H out out out out
52H out out out in
2400 54H out out in out
56H out out in in
9600 58H out in out out
5AH out in out in
19200 5CH out in in out
5EH out in in in
1200 60H in out out out
62H in out out in
2400 64H in out in out
66H in out in in
9600 68H in in out out
6AH in in out in
19200 6CH in in in out
6EH in in in in
Matrix Orbital LCD2041 9